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+NuttX-0.1.0
+^^^^^^^^^^^
+
+This is the initial.  This initial includes the complete NuttX RTOS
+with support for the Linux user mode simulation and the TI TMS320C5471
+(Arm7) processor.  Partial support for the 87C52 is included.
+
+This release has been verified on both the Linux user-mode and C5471
+platforms using the test program under examples/ostest.  Test results
+for the C5471 can be found in arch/c5471/doc/test-results.txt.
+
+This tarball contains a complete CVS snapshot from March 9,2007.
+
+NuttX-0.1.1
+^^^^^^^^^^^
+
+This is the second release of NuttX.  This release includes the following.
+See the ChangeLog for more detailed description of the changes.
+
+(1) General OS bugfixes (see the ChangeLog for details),
+(2) bugfixes for the TI TMS320C5471 (Arm7) platform (see
+    the ChangeLog)
+(3) Complete support for the 87C52. (However, the 87C52
+    release is not stable enough for general usage).
+(4) Added the beginning of a shell call NuttShell (nsh)
+
+This release has been verified on the Linux user-mode platform, the
+Spectrum Digital TMS320C5471 EVM, and the PJRC 87C52 development board
+using the test program under examples/ostest.
+
+STATUS: The development status remains as ALPHA until further testing
+is performed.
+
+This tarball contains a complete CVS snapshot from March 14, 2007.
+
+NuttX-0.1.2
+^^^^^^^^^^^
+
+This is the third release of NuttX.  This release is
+primarily a bugfix release with minimal new features.  See
+the ChangeLog for a more detailed description of the 
+changes.
+
+(1) Several important OS and ARM7 bugfixes,
+(2) opendir(), closedir(), readdir(), etc. added
+(3) Added C5471 watchdog timer.
+(4) Created a shareable, serial driver.
+(5) Added 'ls' command to NuttShell (nsh)
+(6) Added a test of the round robin scheduler
+
+This release has been verified on the Linux user-mode 
+platform, the  Spectrum Digital TMS320C5471 EVM using the
+test program under examples/ostest.
+
+This tarball contains a CVS snapshot from March 19, 2007.
+
+NuttX-0.2.1
+^^^^^^^^^^^
+
+This is the fourth release of NuttX.  This release adds adds
+support for a new platform, restructures many header files,
+and adds a few new features:
+
+(1) Support for Neuros OSD / DM320
+(2) Restructuring of header files for better POSIX compliance
+(3) Added kill()
+(4) Added POSIX timers
+(5) bugfixes and documentation updates
+
+This release has been verified on the Linux user-mode 
+platform, the  Spectrum Digital TMS320C5471 EVM, and the 
+Neuros OSD  using the test program under examples/ostest.  Because
+of the stability of these tests, the project status
+has been upgraded to 'beta.'
+
+This tarball contains a complete CVS snapshot from March 22, 2007.
+
+NuttX-0.2.2
+^^^^^^^^^^^^
+
+This is the fifth release of NuttX.  There is no major new
+functionality in this release.  This release adds support
+for new pthread barrier APIs, changes the directory
+structure, to better handle different board configurations
+using the same processor architecture, and corrects a few
+defects.
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified on the Linux user-mode
+platform and the Neuros OSD using the test program under
+examples/ostest.  There are no known, critical defects but
+the project development status remains at 'beta' status
+pending further test and evaluation.
+
+This tarball contains a complete CVS snapshot from
+March 26, 2007.
+
+NuttX-0.2.3
+^^^^^^^^^^^^
+
+This is the sixth release of NuttX.  This release is
+primarily a bugfix release.  Numerous problems were fixed
+as detailed in the change log.  New functionality includes
+support for timed message queues.
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified on the Linux user-mode 
+platform and the Neuros OSD using the test program under
+examples/ostest. The results of the testing is available in
+the source tree under configs/ntosd-dm320/doc/test-results.
+There are no known, critical defects but the project
+development status remains at 'beta' status pending further
+test and evaluation.
+
+This tarball contains a complete CVS snapshot from March 29,
+2007.
+
+NuttX-0.2.4
+^^^^^^^^^^^^
+
+This is the 7th release of NuttX.  This release is only to roll out
+build changes to better support different SoC's that use the same
+processor architecture.  In particular, the two existing ARM architectures,
+c5471 and DM320 were combined into a single ARM directory.  This was done
+in preparation for an LPC2148 port that is currently in progress.  There
+is NO new functionality or significant bugfixes in this release.
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified on the Linux user-mode platform
+and the Neuros OSD using the test program under examples/ostest.
+The results of the testing is available in the source tree under
+configs/ntosd-dm320/doc/test-results and under configs/sim/doc/test-results.
+There are no known, critical defects but the project development status
+remains at 'beta' status pending further test and evaluation.
+
+This tarball contains a complete CVS snapshot from April 28, 2007.
+
+NuttX-0.2.5
+^^^^^^^^^^^^
+
+This is the 8th release of NuttX.  This release includes:
+
+(1) Several bug fixes
+(2) Initial support for FAT filesystems.  Testing has not
+    been exhaustive and some functionality is missing
+   (mkdir, stat, unlink chmod, and rename functionality is 
+    not yet implemented).
+(3) Support for the NXP lpc2148 processor is included but
+    is untested as of this writing.  The current 
+    implementation includes only support for serial console
+    and timer interrupt.
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified only on the Linux user-mode
+platform.
+
+This tarball contains a complete CVS snapshot from May 19,
+2007.
+
+NuttX-0.2.6
+^^^^^^^^^^^
+
+This is the 9th release of NuttX.  This is primarily a
+bugfix release to correct a number of problems introduced
+with the 0.2.5 release. This release does include some FAT
+filesystem extensions including unlink(), mkdir(), rmdir(),
+rename(), opendir(), closedir(), readdir(), seekdir(),
+telldir(), rewindir().  There are some pending FAT changes
+that did not make it into this release including stat(),
+truncate(), and long file names.
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified only on the Linux user-mode platform.
+
+This tarball contains a complete CVS snapshot from May 26, 2007.
+
+NuttX-0.2.7
+^^^^^^^^^^^
+
+This is the 10th release of NuttX.  This is primarily a bugfix
+release to correct a number of problems reported to me (thanks
+Didier!). This release does include the final changes complete the
+FAT filesystem logic including stat(), statfs(), and non-standard
+APIs to manage FAT attributes.  At present, FAT long file names and
+file truncate() are still not supported.
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified only on the Linux user-mode platform.
+
+This tarball contains a complete CVS snapshot from June 9, 2007.
+
+NuttX-0.2.8
+^^^^^^^^^^^
+
+This is the 11th release of NuttX.  This release:
+(1) corrects important bugs in opendir() and realloc()
+(2) adds support for environment variables
+(3) adds several new C library interfaces
+(4) extends several example programs
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified only on the Linux user-mode platform.
+
+This tarball contains a complete CVS snapshot from July 2, 2007.
+
+NuttX-0.3.0
+^^^^^^^^^^^
+
+This is the 12th release of NuttX.  This release includes the initial
+integration of a network subsystem and the uIP TCP/IP stack into NuttX
+(see http://www.sics.se/~adam/uip/index.php/Main_Page).  Also included
+is a device driver for the Davicom DM90x0 Ethernet controller.
+
+This integration is very preliminary.  Only a small portion of the
+network functionality has been integrated and there are a number of
+open issues (see the TODO file).  The network subsystem is pre-alpha
+at this point in time.  I expect that it will stabilize and mature
+over the next few releases.
+
+The baseline functionality of NuttX continues to mature and remains at
+post-beta (as long as the network is not used).
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified only on the Neuros OSD (DM320 ARM9)
+platform using the DM90x0 driver.
+
+This tarball contains a complete CVS snapshot from November 6, 2007.
+
+NuttX-0.3.1
+^^^^^^^^^^^
+
+This is the 13th release of NuttX and the second release containing
+the integration of a network subsystem and the uIP TCP/IP, UDP, and
+ICMP stacks into NuttX (see http://www.sics.se/~adam/uip/index.php/Main_Page).
+
+Many network-related problems have been fixed and the implementation
+has matured significantly.  However, the level of network reliability
+is probably still at the pre-alpha or early level.  It is sufficiently
+complete that you may begin to perform some network integration and
+is expected to achieve beta level of reliability over the next few
+releases.
+
+The baseline functionality of NuttX continues to mature and remains at
+post-beta (as long as the network is not used).
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified only on the Neuros OSD (DM320 ARM9)
+platform using the DM90x0 driver.
+
+This tarball contains a complete CVS snapshot from November 19, 2007.
+
+NuttX-0.3.2
+^^^^^^^^^^^
+
+This is the 14th release of NuttX and the 3rd release containing
+the integration of a network subsystem and the uIP TCP/IP, UDP, and
+ICMP stacks into NuttX (see http://www.sics.se/~adam/uip/index.php/Main_Page).
+
+Many network-related problems have been fixed and the implementation
+has matured significantly.  This release consists of:
+
+o TCP-related bug-fixes
+o TCP performance improvements
+o Initial UDP integration
+o Initial uIP micro webserver integration
+
+See the ChangeLog for a complete list of changes.
+
+The level of network reliability is at alpha level is expected to
+achieve beta level of reliability over the next few releases.
+
+The baseline functionality of NuttX continues to mature and remains at
+post-beta.
+
+This release has been verified only on the Neuros OSD (DM320 ARM9)
+platform using the DM90x0 driver.
+
+This tarball contains a complete CVS snapshot from November 23, 2007.
+
+NuttX-0.3.3
+^^^^^^^^^^^
+
+This is the 15th release of NuttX and the 4th release containing
+the integration of a network subsystem and the uIP TCP/IP, UDP, and
+ICMP stacks into NuttX (see http://www.sics.se/~adam/uip/index.php/Main_Page).
+
+Many network-related problems have been fixed and the implementation
+has matured significantly.  This release consists of:
+
+o TCP-related bug-fixes for disconnecting sockets
+o Correction of some TCP read-ahead logic
+o TCP performance improvements
+o Misc. additions and cleanup (See the ChangeLog for a complete list of
+  changes).
+
+The level of network reliability is at an early beta release level.  The
+baseline functionality of NuttX continues to mature and remains at
+post-beta. Open network-related issues include only:
+
+o Some minor unimplemented BSD socket functionality,
+o Thread safety issues: the same socket cannot be used concurrently on
+  different threads.
+o Pending design changes necessary to support multiple network interfaces.
+o IPv6 support is incomplete.
+
+This release has been verified only on the Neuros OSD (DM320 ARM9)
+platform using the DM90x0 driver. Any feedback for improving the network
+reliability/performance would be greatly appreciated.
+
+This tarball contains a complete CVS snapshot from November 28, 2007.
+
+NuttX-0.3.4
+^^^^^^^^^^^
+
+This is the 16th release of NuttX and the 5th release containing
+the integration of a network subsystem and the uIP TCP/IP, UDP, and
+ICMP stacks into NuttX (see http://www.sics.se/~adam/uip/index.php/Main_Page).
+
+This release is primarily a bug-fix release.  New features include
+only:
+
+o TELNET front-end to NSH,
+o DHCPC server functionality, and
+o C5471 Ethernet driver.
+
+Numerous network related problems were fixed related to DHCPC, UDP
+input processing, UDP broadcast, send timeouts, and bad compilation when
+uIP is compiled at high levels of optimization.
+
+The level of network reliability is at a strong beta release level.  The
+baseline functionality of NuttX continues to mature and remains at
+post-beta or production level.
+
+Parts of this release were verified only on the Neuros OSD (DM320 ARM9)
+platform using the DM90x0 Ethernet driver and other parts on the Spectrum
+Digital C5471 EVM using the C5471 Ethernet driver. Any feedback about bugs
+or suggestions for improving the network reliability/performance would be
+greatly appreciated.
+
+This tarball contains a complete CVS snapshot from December 10, 2007.
+
+NuttX-0.3.5
+^^^^^^^^^^^
+
+This is the 17th release of NuttX this release is primarily a bug-fix
+release and intended to synchronize with the current CVS contents.  See
+the ChangeLog for a detailed list of changes and fixes.
+
+This release were verified only on the Spectrum Digital C5471 EVM using
+the C5471 Ethernet driver. Any feedback about bugs or suggestions for
+improvement would be greatly appreciated.
+
+This tarball contains a complete CVS snapshot from December 18, 2007.
+
+NuttX-0.3.6
+^^^^^^^^^^^
+
+This is the 18th release of NuttX.  This release contains on a few
+changes.  The primary purpose of this release is to synchronize with
+the release of the pascal-0.1.0 add-on package.
+
+This release of NuttX includes the following changes:
+
+* Fixes for use with SDCC compiler
+* Added a simulated z80 target (arch/z80)
+* Fix deadlock errors when using stdio but with no buffering
+* Add support for the add-on Pascal P-Code interpreter (pcode/)
+  (see the pascal-0.1.0 package)
+
+This release were verified only on the simulated Z80 and and host
+simulation targets.  As usual, any feedback about bugs or suggestions
+for improvement would be greatly appreciated.
+
+This tarball contains a complete CVS snapshot from January 6, 2007.
+
+====
+
+There was an error in the initial 0.3.6 release that prevented
+a successful build unless the Pascal add-on was present.  The
+tarball was patched to include the fix.  Make sure that you download
+the nuttx-0.3.6.1.tar.gz version to avoid this problem.
+
+NuttX-0.3.7
+^^^^^^^^^^^
+
+This is the 19th release of NuttX.  This release includes the
+preliminary port of NuttX to the ZiLOG z16f 16-bit microcontroller.
+This port was verified using the ZiLOG z16f2800100zcog Development
+and the ZiLOG ZDS-II toolchain. See http://www.zilog.com for
+further information.
+
+I emphasize that this is a preliminary release of the z16f port and
+is only alpha or, perhaps, pre-alpha quality as of this writing.
+There are a list of known issues in the TODO file in the root of
+the NuttX directory.  The overall quality of NuttX (excluding the
+z16f port) continues to improve beyond the late beta level.
+
+The z16f port required numerous changes to NuttX to handle:
+
+* NEAR and FAR addressing, and
+* Use of a Windows native toolchain in a Cygwin build environment.
+
+In addition to the z16f port, at least one very critical bug was
+found and corrected in NuttX:  The thread-specific errno value of one
+task was being randomly trashed when a different thread exited.
+
+This release were verified on the ZiLOG z16f2800100zcog, Neuros OSD
+(ARM9), and the simulation platforms.  As usual, any feedback about bugs
+or suggestions for improvement would be greatly appreciated.
+
+This tarball contains a complete CVS snapshot from January 31, 2008.
+
+NuttX-0.3.8
+^^^^^^^^^^^
+
+This is the 20th release of NuttX.  This is a minor bugfix release.
+It corrects a few minor problems, adds a few minor features, and
+continues the integration of the ZiLOG Z18F and of the Pascal P-Code
+add-on.  This release is synchronized with the release of Pascal-0.1.2.
+
+This tarball contains a complete CVS snapshot from February 10, 2008.
+
+NuttX-0.3.9
+^^^^^^^^^^^
+
+This is the 21st release of NuttX.  This is a minor future enhancement
+release.  This release includes support for the ZiLOG Z8Encore! micro-
+controller.  Also included is the initial framework for support for
+the Z80, XTRS platform (http://www.tim-mann.org/xtrs.html).
+
+This released has been verified only on the ZiLOG ZDS-II Z8Encore!
+chip simulation.
+
+This tarball contains a complete CVS snapshot from March 9, 2008.
+
+NuttX-0.3.10
+^^^^^^^^^^^^
+
+This is the 22nd release of NuttX.  This is an important bug fix
+release.  This release incorporates fixes to correct critical list
+handling errors in task shutdown logic: One in timer deletion logic
+(timer_delete.c) and one in stream logic (lib_init.c).  This release
+also includes support to ZiLOG EZ80Acclaim microcontroller (EZ80F91
+chip) and configurations for the ZiLOG z8f64200100kit (Z8F6423) and
+ez80f0910200kitg (EZ80F091) development kit.
+
+NuttX-0.3.11
+^^^^^^^^^^^^
+
+This is the 23rd release of NuttX.  This is another important bugfix
+release.  This releases fixes several bugs:
+
+* Two POSIX timer bugs: a memory leak as well a fatal sequencing error.
+* Several FAT filesystem errors.
+* A deadlock that can occur in opendir()
+
+A few new features were also added:
+
+* Support for recursive mutexes
+* Added a RAM disk block driver
+* The host simulator no longer uses direct Linux system calls and
+  now also works on Cygwin.
+* The OS test was strengthen and now runs as an endurance test
+
+These changes were verified only on the Host simulator under Cygwin.
+Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from June 1, 2008.
+
+NuttX-0.3.12
+^^^^^^^^^^^^
+
+This is the 24th release of NuttX.  This release includes some minor
+bugfixes as well as a few new features.  Bugs fixed include:
+
+* Corrected an error in recursive mutex implementation.
+* task_create() was only dup()ing the first three file descriptors.
+* Fixed driver open reference counting errors in dup(), dup2(), and exit().
+* Fixed error handling logic in fflush().
+
+New features were also added:
+
+* Pipes and pipe() API
+* FIFOs and mkfifo() API
+* mkfatfs() API can be used to format FAT file systems.
+
+These changes were verified only on the Host simulator under Cygwin.
+Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from August 10, 2008.
+
+NuttX-0.3.13
+^^^^^^^^^^^^
+
+This is the 25th release of NuttX.  This release includes some
+important bugfixes as well as a few new features.  Bugs fixed
+include:
+
+* Fixed problems with Cygwin-based console input.  NSH now works
+  with the Cygwin simulator.
+* sched_get_priority_max/min returned error on SCHED_RR
+* Corrected detection of End-of-File in fgets()
+* Fixed an error in opendir() that could cause an assertion to fail
+  inappropriately.
+* Corrected an error in the FAT that caused files opened for writing
+  with O_APPEND to fail.
+* Fix error in getopt() when called with argc==1
+* Fix error in stat() when used on the root directory
+* Fixed a critical bug that effects the way that environment variables
+  are shared among pthreads.
+* uIP port now supports multi-threaded, concurrent socket access.
+  So, for example, one thread can be reading from a socket while
+  another is writing to the socket.
+
+New features were also added:
+
+* New OS APIs: chdir() and getcwd()
+* The Nuttx shell (NSH) has been extended in many ways.
+  - New commands: mkfatfs, mkfifo, sleep, usleep, nice, sh, cd, and pwd
+  - New memory inspection commands and heap usage commands
+  - New capabilities:
+    - Execution of commands in background
+    - Execution of simple scripts
+    - Redirection of command output
+    - Last command status ($?)
+  - Now supports if-then[-else]-fi construct
+  - Other features as noted in the ChangeLog.
+
+These changes were verified only on the Host simulator under Cygwin
+and under Linux and also on the Neuros OSD (ARM9).  Please report
+any errors to me.
+
+This tarball contains a complete CVS snapshot from September 1, 2008.
+
+nutt-0.3.14
+^^^^^^^^^^^
+
+This is the 26th release of NuttX.  This release includes some
+important bugfixes as well as a few new features.  Critical bugs
+fixed include:
+
+FAT FS:
+  * Fixed several critical bugs with regard to fat reading and
+    writing and FAT12 accesses.  Basically the FAT FS only worked
+    with my tiny test files and test cases.  A lot of stronger FAT
+    tested is still needed!
+  * Fixed another FAT bug in implementation of FAT lseek();
+    this prohibited correct random access to large files.
+
+Network:
+  * Corrected a critical bug that may prevent recvfrom from receiving
+    packets from most remote UDP port numbers.
+  * Corrected an error in multi-threaded socket handling in send() and
+    sendto().  Outgoing data could overwrite incoming data.
+  * Corrected IP checksum calculation in ICMP and UDP message send logic.
+  * Corrected an error in send() timeout logic.
+
+New features were also added:
+
+Network:
+  * Added support for application access to ICMP protocol stacks
+  * Added ping request logic (net/uip).
+  * Added basic TFTP client logic (netutils/tftpc).
+
+NuttShell (NSH):
+  * New commands: 'test', '[', 'ping', 'mkrd', 'xd', and TFTP 'get' and 'put'
+    See the new NuttShell User Guide for additional information.
+
+Other less critical bugs were also fixed and other less important
+features were were added.  See the ChangeLog for details.
+
+These changes were verified only on the Neuros OSD (ARM9).  Please
+report any errors to me.
+
+This tarball contains a complete CVS snapshot from September 8, 2008.
+
+nutt-0.3.15
+^^^^^^^^^^^
+
+This is the 27th release of NuttX.  This release includes some new features:
+
+* Adds support for the ROMFS filesystem
+* ROMFS supports mmap() to provide eXecute In Place (XIP) capability
+* NuttShell (NSH) can be configured to use ROMFS to provide a tiny read-only
+  filesystem with a startup script in /etc.
+* Completed the basic port of the NXP LPC2148 on the mcu123.com board.
+  The basic port includes successful booting, timer interrupts,
+  serial console, successfully passing the examples/ostest, and a
+  NuttShell (NSH) configuration.
+
+These changes were verified only on the mcu123.com NXP LPC2148
+board.  Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from September 20, 2008.
+
+nutt-0.3.16
+^^^^^^^^^^^
+
+This is the 28th release of NuttX.  This release includes the first
+support for USB in NuttX.  A set of USB APIs were added to support
+USB device controller drivers and bindings to USB device class
+drivers.  The form of the interface was inspired by the Linux Gadget APIs.
+
+At present USB device controller drivers are included for:
+  * The NXP LPC214x.  This driver has been verified and is an early alpha
+    stage in quality.
+  * TI DM320.  Coding for this driver is complete but it is completely
+    untested as of this release.
+
+A controller-independent class driver is also included for:
+  * USB serial class device driver (emulates the Prolific PL2303
+    serial-to-USB adapter).  This driver has only been verified with
+    the Linux host PL2303 driver.
+
+Other new features include:
+  * Add an option to set aside a separate stack for interrupt
+    handling (ARM only).  This is useful when memory is constrained,
+    there are multiple tasks, and the interrupt stack requirement
+    is high (as when USB is enabled).
+
+A few bugs were also fixed:
+  * Fixed the frequency of system timer interrupts in the NXP LPC214x port
+    (off by 20x in nuttx-0.3.15)
+  * Fixed serial driver bugs related to (1) open counts and (2) recognizing
+    O_NONBLOCK on read.
+  * Fixed an error in read(); it was not setting the errno on errors returned
+    from the driver.
+
+These changes were verified only on the mcu123.com NXP LPC2148 board
+using with a Linux host.  Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from October 10, 2008.
+
+UPDATE
+^^^^^^
+This release does not build for the ARM target when USB is disabled.
+Here is the fix:
+
+Index: arch/arm/src/common/up_internal.h
+===================================================================
+RCS file: /cvsroot/nuttx/nuttx/arch/arm/src/common/up_internal.h,v
+retrieving revision 1.13
+diff -u -r1.13 up_internal.h
+--- arch/arm/src/common/up_internal.h   6 Oct 2008 16:20:52 -0000       1.13
++++ arch/arm/src/common/up_internal.h   13 Oct 2008 20:48:21 -0000
+@@ -200,7 +200,8 @@
+ extern void up_usbinitialize(void);
+ extern void up_usbuninitialize(void);
+ #else
+-# define up_netinitialize()
++# define up_usbinitialize()
++# define up_usbuninitialize()
+ #endif
+
+ #endif /* __ASSEMBLY__ */
+
+NuttX-0.3.17
+^^^^^^^^^^^^
+
+This is the 29th release of NuttX.  This release includes the
+additional support for USB in NuttX.  The following new features
+were added:
+
+* Added support for SPI-based MMC/SD cards (with an SPI driver
+  for the NXP LPC214x).
+* Added USB storage class device side driver (BBB)
+* Added an example that demonstrates the USB storage class by
+  exporting the SPI based MMC/SD card on the NXP LPC214x.
+
+This is an early alpha release of these drivers.  At present they
+only work with debug features enabled so there are probably some
+race conditions that occur only with debug features disabled.
+(Anyone out there with a USB analyzer?  I would love to know what
+is happening.)
+
+Several important bugs were also fixed in the FAT file system, USB
+serial driver and NXP LPC214x USB controller driver. (See the ChangeLog
+for details.)
+
+These changes were verified only on the mcu123.com NXP LPC2148 board
+using a Linux development environment.  USB testing was performed
+using both a Linux host and a WinXP host.  Please report any errors
+to me.
+
+This tarball contains a complete CVS snapshot from October 28, 2008.
+
+NuttX-0.3.18
+^^^^^^^^^^^^
+
+This is the 30th release of NuttX.  This release includes two
+partially completed ports, several new features, and a couple of
+important bug fixes.  The two partially completed ports are:
+
+  * The STMicro STR71x processor and configuration for the Olimex
+    STR-P711 board.
+  * The Hitachi SH-1 using the SH1_LCEVB1 (SH-1/US7032EVB1) board
+
+Progress on these ports is stalled (as detailed in the ChangeLog).
+
+The new features focus primarily on management of block devices and
+extensions of the NuttShell (NSH).  These include:
+
+  * A loop device that converts a file into a block device.
+  * A block to character (BCH) driver that  allow access a block device as
+    if it were character device.
+  * Added strcasecmp() and strncasecmp() libc functions.
+  * Added the 'dd' and 'losetup' commands to NSH. These commands
+    (along with mkfatfs and mount), give good management of filesystems
+    on the target.
+
+Several bugs were fixed, the most important of which are:
+
+  * Fixed a race condition workaround delay in LPC214X SPI logic.
+    This was also the cause of some bad MMC/SD performance on that
+    platform.
+
+  * Fixed a recently introduced FAT file system problem: It would
+    mount a (invalid) FAT file system even if the medium is not formatted!
+
+  * Corrected two other important errors in the FAT lseek() implementation:
+    1 - The sectors-per-cluster value was being reset to "1".
+    2 - Important lseek logic was omitted when the seek position was zero.
+
+The FAT filesystem has had many bugs fixed in it and, I think, is
+now maturing and becoming stable.
+
+These changes were verified only on the mcu123.com NXP LPC2148
+board, the Hitachi SH1_LCEVB1 board, and the Linux simulator, all
+using a Linux development environment.  Please report any errors
+to me.
+
+This tarball contains a complete CVS snapshot from November 16, 2008.
+
+NuttX-0.3.19
+^^^^^^^^^^^^
+
+This is the 31st release of NuttX.  This release includes the
+following new feature:
+
+  * Add poll() and select() APIs that may be used to monitor for
+    data availability on character devices or TCP/IP sockets.
+  * Implemented support TCP/IP connection backlog.  This allows
+    select() to wake-up on new connections to a listener socket.
+  * Added definition of a framebuffer driver and implement framebuffer
+    drivers for the simulated platform and the TI DM320 (untested
+    as of the initial check-in).
+  * Partially developed a graphics framework based on the framebuffer
+    drivers, however, this will not be ready for use for a few more
+    releases.  Currently this includes only a few color conversion
+    routines and some rasterizing functions.  A tiny windowing system
+    is under development but not ready for check-in yet.
+  * Added support for fixed precision math.
+  * Added support for outgoing multicast packets.
+
+Several bugs were fixed, the most important of which are:
+
+  * Fixed an important bug in the TCP/IP buffering logic.  When
+    TCP/IP read-ahead is enabled and not recv() is in-place when a
+    TCP/IP packet is received, the packet is placed into a read-ahead
+    buffer.  However, the old contents of the read-ahead buffer
+    were not being cleared and old data would contaminate the newly
+    received buffer.
+
+  * Changed the behavior of the serial driver read.  It now returns
+    data as it is available rather than waiting for the full requested
+    read size.  This makes functions like fgetc() work much more
+    smoothly.
+
+These changes were verified only on the Neuros OSD (ARM9) using a
+Linux development environment. Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from November 26, 2008.
+
+NuttX-0.4.0
+^^^^^^^^^^^
+
+This is the 32nd release of NuttX.  This release adds graphics
+support and a tiny windowing subsystem.  That new graphics subsystem
+is documented at http://nuttx.sourceforge.net/NXGraphicsSubsystem.html.
+No other substantial changes were made.
+
+These changes were verified only on the NuttX simulation platform
+with X11 windows simulating a device framebuffer. Please report any
+errors to me.
+
+The version number was bumped up to 0.4.0 in part to reflect the
+new graphics subsystem, but also to recognize the NuttX is approaching
+complete functionality.  In the 0.3.x versions, network support was
+added, Pascal P-code runtime support was added, FAT and ROMFS
+filesystems were added, MMC/SD and USB device support were added.
+There were also numerous extensions to the NuttShell, NuttX APIs,
+and architecture ports.
+
+This tarball contains a complete CVS snapshot from December 6, 2008.
+
+NuttX-0.4.1
+^^^^^^^^^^^
+
+This is the 33rd release of NuttX.  This is a minor bugfix release.
+The primary reason for this release is to correct numerous build
+errors that have accumulated for the ZiLOG ZDS-II based targets.
+All ZDS-II targets now build correctly (but have not been re-tested).
+In addition to platform-specific build failures, this release also
+adds the following features which were not tested as of the time
+of the release:
+
+  * Board support for the ZiLog ez80Acclaim! ez80f910200zco Development Kit
+  * ZiLOG eZ80F91 EMAC driver
+
+These changes were verified only on the NuttX simulation platform.
+Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from February 6, 2009.
+
+NuttX-0.4.2
+^^^^^^^^^^^
+
+This is the 34th release of NuttX.  This release adds no new OS
+features but does include support for two new architectures:
+
+  * ez80Acclaim!  Basic support has been integrated and verified
+    for the ez80f910200zcog-d board (eZ80F91-based).  That basic
+    support includes timer interrupts and serial console.  Ongoing
+    work includes an EMAC driver that should be integrated for the
+    next release nuttx-0.4.2.  eZ80Acclaim! support has been in the
+    code base for some time, but has only just been integrated due
+    to toolchain issues.
+
+  * Renesas M16C/20.  Support for the Renesas SKP16C20 board has
+    been included in the NuttX source tree.  However, as the
+    eZ80Acclaim!, testing and integration of that port is stalled
+    due to toolchain issues.
+
+These changes were verified only on the ZiLOG eZ80910200zcog-d
+board. Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from February 28, 2009.
+
+NuttX-0.4.3
+^^^^^^^^^^^
+
+This is the 35th release of NuttX.  This release one important new
+OS feature and corrects and extends the eZ80 port:
+
+  * Priority Inheritance.  The basic NuttX waiting logic was extended
+    to support priority inheritance. See the NuttX User Manual for
+    further information:
+    http://www.nuttx.org/NuttxUserGuide.html#priorityinheritance.
+
+  * ez80Acclaim! Corrected several critical, show-stopping bugs on that
+    platform including:
+    - Errors in the serial driver interrupts.
+    - An error in the eZ80 table.
+  * eZ80Acclaim!: Completed integration of the eZ80F91 EMAC driver.
+
+These changes were verified only on the ZiLOG eZ80910200zcog-d board
+and on Cygwin-based simulation platform in various configurations.
+Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from March 13, 2009.
+
+NuttX-0.4.4
+^^^^^^^^^^^
+
+This is the 36th release of NuttX.  This release focuses on bugfixes
+and extending and verifying certain networking features.
+
+  * Important bugs were fixed in NSH, UDP checksum calculation, UDP
+    bind() behavior for port==0, the eZ80Acclaim! EMAC driver, Z80
+    interrupt handling, and in the C libraries.
+
+  * Testing was extended to further verify the tiny webserver,
+    DHCPD, wget(), and sendmail.
+
+See the Changelog for a detailed description of these changes.
+
+These changes were verified only on the ZiLOG eZ80910200zcog-d board
+using the ZDS-II toolchain in Cygwin-based environment. Please
+report any errors to me.
+
+This tarball contains a complete CVS snapshot from March 29, 2009.
+
+NuttX-0.4.5
+^^^^^^^^^^^
+
+This is the 37th release of NuttX.  This release focuses on a few new features.
+
+  * The basic port for the Freescale ARM920T i.MX1 processor on the
+    Freescale MX1ADS board.  Coding is complete for this port, but
+    it is has not yet fully integrated
+  * Extended I2C and SPI interface definitions
+  * Add basic support for C++ applications.  Very simple C++
+    applications can now be built against NuttX without any external
+    libraries.  At present, only the most primitive C++ programs
+    are supported, but it is hoped that this support will be extended
+    in future releases.
+
+See the Changelog for a detailed description of these changes.
+
+This tarball contains a complete CVS snapshot from April 19, 2009.
+
+NuttX-0.4.6
+^^^^^^^^^^^
+
+This is the 38th release of NuttX.  The release features support
+for the Micromint Eagle-100 development board.  This board is based
+around, the Luminary LM3S6918 MCU.  This is the first ARM Cortex-M3
+architecture supported by Nuttx. This initial, basic port includes
+timer and serial console with configurations to execute the NuttX
+OS test and to run the NuttShell (NSH). Work is still underway on
+this port and current plans are to have I2C, SSI, MMC/SD, and and
+Ethernet driver in the 0.4.7 release.
+
+Additional work was done on the MXADS i.MX1 port, however, that
+work has been set aside until I complete work on the Eagle-100 (I
+also need to come up with a 3V power supply).
+
+Other changes in this release include: Extensions to the SPI interface
+definition in order to handle 9-bit interfaces to displays.  Several
+bugs were fixed (see the ChangeLog for a complete list of changes).
+
+This tarball contains a complete CVS snapshot from May 19, 2009.
+
+NuttX-0.4.7
+^^^^^^^^^^^
+
+This is the 39th release of NuttX.  This release focuses on cleaning
+up and extending the Eagle100/LM3S6918 port released in nuttx-0.4.6
+and on improved MMC/SD support.  New features include:
+
+  * Improved reliably and additional drivers for the Eagle-100 board
+    (LM3S6918 ARM Cortex-M3).  Additional drivers include Ethernet,
+    SSI, and support for the on-board LEDs and microSD cards.
+
+  * The SPI-based MMC/SD driver was extended to support SDHC Version
+    2.xx cards.
+
+In addition, this release includes several important bugfixes for
+the LM3S6918, the LPC2148, the SPI-based MMC/SD driver, and to
+FAT32.  See the ChangeLog for details of these bugfixes.
+
+This tarball contains a complete CVS snapshot from May 29, 2009.
+
+NuttX-0.4.8
+^^^^^^^^^^^
+
+This is the 40th release of NuttX.  This release adds:
+
+  * Support for the Olimex STRP711 board.  That board is based on
+    the STMicro STR711 MCU (ARM7TDMI). Integration is complete on
+    the basic port (boot logic, system time, serial console). Two
+    configurations have been verified: (1) The board boots and
+    passes the OS test with console output visible on UART0, and
+    the NuttShell (NSH) is fully functional with interrupt driven
+    serial console.  An SPI driver is available but untested (because
+    the Olimex card slot appears to accept only MMC cards; I have
+    only SD cards).  Additional needed: USB and driver, MMC
+    integration.
+
+  * Support for the CodeSourcery and devkitARM Windows-native GNU
+    toolchains.  Makefiles have been modified for the LM3S6918,
+    LPC2148, and STR711 to support these toolchains under Cygwin.
+
+This tarball contains a complete CVS snapshot from June 13, 2009.
+
+NuttX-0.4.9
+^^^^^^^^^^^
+
+This is the 41st release of NuttX.  This release adds:
+
+  * Support for a new binary format call NXFLAT that can be used to 
+    execute separately linked programs in place in a file system.
+    See http://www.nuttx.org/NuttXNxFlat.html.
+
+  * Several important bugs were files related to networking and ROMFS.
+    See the ChangeLog for a complete list.
+
+This tarball contains a complete CVS snapshot from June 26, 2009.
+
+NuttX-0.4.10
+^^^^^^^^^^^
+
+This is the 42nd release of NuttX.  This released focused on the
+port of Jeff Poskanzer's THTTPD HTTP server (see
+http://acme.com/software/thttpd/).  As of the 0.4.10 release, that
+port is still not fully complete and functional.  However, numerous
+related bug-fixes and functional additions for THTTPD were added:
+
+  * Several new standard C-library functions (fileno, strstr,
+    strpbrk, fcntl).
+  * Improved and extended timing APIs (mktime, gmtime, gmtime_r,
+    gettimeofday, localtime, localtime_r, and strftime)
+  * Networking enhancements: recvfrom() and accept() now work with
+    non-blocking sockets.
+  * NXFLAT extensions (exec)
+  * Pattern matching logic.
+  * And miscellaneous bug fixes (see the ChangeLog for details).
+
+This tarball contains a complete CVS snapshot from August 8, 2009.
+
+NuttX-0.4.11
+^^^^^^^^^^^^
+
+This is the 43rd release of NuttX. This release of NuttX incorporates
+the verified port of Jeff Poskanzer's THTTPD HTTP server (see
+http://acme.com/software/thttpd/).  Many of the key features of
+THTTPD have been tested on the Micromint Eagle-100 development board
+(Cortex-M3).  These tests verify:
+
+  * Serving of files from any file system
+  * Execution of CGI executable.  This release supports execution
+    of NXFLAT executables on a ROMFS file system
+    (http://www.nuttx.org/NuttXNxFlat.html)
+
+A standard CGI interface is used:  Information is pasted to the CGI
+program via POST commands and via environment variables.  CGI socket
+I/O is redirected to stdin and stdout so that the CGI program only
+need to printf() to send its content back to the HTTP client.
+
+Another value to this THTTPD integration effort has been that THTTPD
+has provided a very good test bed for finding NuttX networking bugs.
+Several very critical networking bugs have been fixed with this
+0.4.11 release (see the ChangeLog for details).  Networking throughput
+has also been greatly improved.  Anyone using NuttX networking
+should consider upgrading to this release.
+
+This tarball contains a complete CVS snapshot from September 16, 2009
+
+NuttX-0.4.12
+^^^^^^^^^^^^
+
+This is the 44th release of NuttX.  This release adds basic support
+for the STMicro STM32, Cortex-M3 MCU.  The specific port is to the
+STMicro STM3210E-EVAL development board based around the STM32F103ZET6
+MCU.  Some highlights of this port:
+
+  * This basic port includes boot-up logic, interrupt driven serial
+    console, and system timer interrupts.
+  * Includes a basic STMicro RIDE7 project that can be used to
+    perform basic STM32 board bring-up (due to RIDE7 size limitations,
+    it cannot be used for the full NuttX bring-up).
+  * Working, Tested Configurations: the NuttX OS test and the
+    NuttShell (NSH) example.
+
+This basic STM32 port will be extended in the 0.4.13 NuttX release.
+Functionality needed for complete STM32 support includes:  USB
+device driver, LCD driver and NX bringup on the development board's
+display and MicroSD support.  An SPI driver and a DMA support was
+included in this 0.4.12 release, but is not yet tested.
+
+This tarball contains a complete CVS snapshot from October 17, 2009
+
+NuttX-0.4.13
+^^^^^^^^^^^^
+
+This is the 45th release of NuttX.  The release extends the support
+for the STMicro STM32 microcontroller.  Minimal support for the
+STM3210E-EVAL development board based around the STM32F103ZET6 MCU
+was released in NuttX-0.4.12.  This release adds:
+
+  * A simple interface definition to support some FLASH, EEPROM,
+    NVRAM, etc. devices.
+  * Verified SPI operation using driver for SPI based FLASH parts
+    M25P64 and M25P128.
+  * Improved Cortex-M3 context switching.  This should improve
+    context switching performance be 2x in certain cases.
+  * Added a USB device-side driver for the STM32.  This is an early
+    release of a very complex driver; some bugs are expected.
+  * The USB driver has been verified against the USB serial device
+    class driver.  There is at least one known outstanding issue
+    (see the full bug description in the TODO list).
+
+This release also corrects some important bugs in the early STM32 release:
+
+  * Fixed several errors the prevented operation of NuttX on an
+    STM32 development board using USART2 as the serial console.
+  * Fixed and optimization-dependent race condition in the clock
+    initialization.
+  * Fixed a critical bug in the interrupt control logic that could
+    cause interrupt operations to failed used for interrupts in a
+    certain range.
+
+This tarball contains a complete CVS snapshot from November 4, 2009
+
+NuttX-4.14
+^^^^^^^^^^
+
+This is the 46th release of NuttX.  The release extends the support
+for the STMicro STM32 microcontroller.  Minimal support for the
+STM3210E-EVAL development board based around the STM32F103ZET6 MCU
+was released in NuttX-0.4.12 and extended in Nuttx-0.4.13 to include
+initial USB support.  This completes the STM32F103ZET6 and adds:
+
+New Generic RTOS Features:
+
+  * Added generic support that can be included in any block driver
+    to provide read-ahead buffering and write buffering for improved
+    driver performance.
+  * Added a generic worker thread that can used to defer processing
+    from an interrupt to a task.
+  * Defined a generic SD/SDIO interface can can be bound to a MMC/SD
+    or SDIO driver to provide SDIO support.
+  * Implemented a an SDIO-based MMC/SD driver using this new SDIO
+    interface.
+
+New STM32 Features:
+
+  * Add support to configure an STM32 input GPIO to generate an
+    EXTI interrupt.
+  * Added support for buttons on the STM3210E-EVAL board.
+  * Implemented an STM32 version of the common the SDIO interface.
+  * Added a configuration to exercise the STM32 with the USB mass
+    storage device class example.
+
+This release also corrects some important bugs in the early STM32 release:
+
+  * Correct error handling in the mount() logic.
+  * Fixed several STM32 DMA-related issues. Integrated and debugged
+    STM32 DMA functionality that was added in 0.4.12.
+  * Fixed several bugs in the STM32 USB device-side driver.
+
+NOTE:  This version, 4.14, is equivalent to what would have been
+called 0.4.14 to follow 0.4.13.  The zero has been eliminated from
+the front of the version number to avoid confusion about the state
+of development:  Some have interpreted the leading zero to mean
+that the code is in some way unstable.  That was not the intent.
+Beginning in January 2010, I will switch to the 2010.nn versioning
+as many others have done to avoid such confusion.
+
+This tarball contains a complete CVS snapshot from December 2, 2009
+
+NuttX-5.0
+^^^^^^^^^
+
+This is 47th release of NuttX and the successor to nuttx-4.14.  This
+major revision number has been incremented to indicate that an
+incompatibility with previous nuttx releases has been introduced.
+This version adopts standard fixed width integer names as specified
+by the ANSI C99 standard.  The core logic of NuttX is older than
+that standard and did not conform to it.
+
+If you have applications running on NuttX-4.14, those applications
+should continue to build and execute without problem on NuttX-5.0.
+However, if you have device drivers or other OS-internal logic, you
+will probably have to make some minor changes to your code to use
+this version.  Below is a summary of those changes:
+
+  * If you include sys/types.h to get the non-standard, fixed width
+    integer types (uint32, uint16, ubyte, etc.), that is no longer
+    necessary.
+  * Instead, you will need to include stdint.h where the new fixed
+    width integer types are defined (uint32_t, uint16_t, uint8_t, etc).
+  * You will have to change all occurrences of the following types:
+
+    uint32 -> uint32_t
+    uint16 -> uint16_t
+    ubyte  -> uint8_t
+    uint8  -> uint8_t
+    sint32 -> int32_t
+    sint16 -> int16_t
+    sint8  -> int8_t
+
+ * In addition, the non-standard type 'boolean' must replaced with
+   the standard type 'bool'.  The type definition for 'bool' is in
+   stdbool.h
+
+This change in typing caused small changes to many, many files.  It
+was verified that all configurations in the release still build
+correctly (other than the SDCC-based configurations).  Regression
+testing was performed on a few configurations, but it is possible
+that minor build issues still exist. (If you encounter any, please
+let me know and I will help you to fix them.)
+
+In the course of the regression testing, several important bugs
+unrelated to the type changes were found and corrected.
+
+  * Fixed an important error in the RX FIFO handling logic of the
+    LM3S6918 Ethernet driver.
+  * Corrected the handling of TCP sequence numbers in the TCP stack.
+  * And other less important bugs as detailed in the ChangeLog.
+
+The primary focus of this release was standards compatibility, but
+a few new features were added including a (1) Flash Translation
+Layer (FTL) that will support filesystems on a FLASH device and (2)
+partial ports for the STM32F107VC and HCS12 C9S12NE64 MCUs.  Those
+ports are very incomplete as of this writing.
+
+This tarball contains a complete CVS snapshot from December 21, 2009
+
+NuttX-5.1
+^^^^^^^^^
+
+This is the 48th release of NuttX.  This release adds support for
+two new MCU architectures in various states of development:
+
+* AT91SAM3U (http://www.atmel.com/products/at91/sam3landing.asp?family_id=605)
+
+  This release adds support for the SAM3U-EK development board with
+  the AT91SAM3U4E MCU
+  (http://www.atmel.com/dyn/products/product_card_mcu.asp?part_id=4562).
+  As with most NuttX architecture releases, the release will be
+  rolled out in two parts:  A basic port and an extended port.
+
+  NuttX-5.1 includes the basic port for the SAM3U-EK board.  This
+  release passes the NuttX OS test and is proven to have a valid
+  OS implementation.  It supports the basic boot-up, serial console
+  and timer interrupts.  A configuration to support the NuttShell
+  is also included.
+
+  The extended port will also include support for SDIO-based SD
+  cards and USB device (and possible LCD support).  These extensions
+  may or may not happen by the Nuttx 5.2 release as my plate is
+  kind of full now.
+
+* LPC3131 (http://ics.nxp.com/products/lpc3000/lpc313x.lpc314x.lpc315x/)
+
+  This release also adds the complete implementation of the basic
+  port for the NXP LPC3131 MCU on the Embedded Artists EA3131 board
+  (http://www.embeddedartists.com/products/kits/lpc3131_kit.php).
+  That port, unfortunately has stalled due to tools issues.  Those
+  tool issues have been resolved and I am confident that the verified
+  basic port will be available in NuttX-5.2.
+
+  The extended release will follow and should include SDIO-based
+  SD card support and device USB.
+
+A few additional features and bugfixes of a minor nature were also
+incorporated as detailed in the ChangeLog.
+
+NuttX-5.2
+^^^^^^^^^
+
+This is the 49th release of NuttX.  This release completes the
+verification of the basic port for the NXP LPC3131 MCU on the
+Embedded Artists EA3131 board
+(http://www.embeddedartists.com/products/kits/lpc3131_kit.php).
+This basic port includes basic boot-up, serial console, and timer
+interrupts.  This port has been verified on the using the NuttX OS
+test and includes a working implementation of the NuttShell (NSH).
+
+An extended release will follow and should include SDIO-based SD
+card support and device USB.
+
+NuttX-5.3
+^^^^^^^^^
+
+This is the 50th release of NuttX.  This release support for one new
+architecture:
+
+  * A basic port for the NXP LPC2378 MCU on the Olimex-LPC2378
+    development board was contributed by Rommel Marcelo.
+
+And extensions to two existing architectures:
+
+  * David Hewson contributed a dual-speed (full/high) USB device-side
+    driver for the NXP LPC3131 on the Embedded Artists EA3131
+    development board.
+
+  * A DMA driver and a high speed MCI driver for the Atmel AT91SAM3U
+    are included (but not fully tested in this release).
+
+Two important bugfix was also included:
+
+  * An important fix to the USB mass storage driver was contributed
+    by David Hewson.
+  * A serious error in the AT91SAM3U PIO handling was fixed.
+
+NuttX-5.4
+^^^^^^^^^
+
+This is the 51st release of NuttX.  This release includes one new,
+important extension to th NX graphics system (See
+http://www.nuttx.org/NXGraphicsSubsystem.html).
+
+NX was develop a couple years back on hardware that supported only
+framebuffer devices, that is, video hardware with video memory
+directly converts the memory content to video.  However, most MCUs
+that NuttX focuses on do not support such video memory; rather,
+that typically only support LCDs via parallel or serial interfaces.
+
+This release of NuttX extends NX so that now renders directly to
+the LCD device via its serial or parallel interface.  No in-memory
+copy of the screen memory need be maintained so this solution should
+also work in MCUs with very limited SRAM.
+
+This initial release of this feature includes the verified NX
+extensions plus a driver for the HX8347, 16-bit parallel LCD.  This
+LCD supports 16-bit RGB (5:6:5).
+
+NuttX-5.5
+^^^^^^^^^
+
+This is the 52nd release of NuttX.  This release includes one new
+port, some new drivers and some important bugfixes:
+
+  * NuttX was ported to the Luminary/TI LM3S6965 Ethernet Evaluation
+    Kit.  At present, that port includes an OS test configuration
+    and a NuttShell (NSH) configuration with Telnet support.
+
+    MMC/SD and Networking support are provided but not thoroughly
+    verified in this release: Current development efforts are focused
+    on porting the NuttX window system (NX) to work with the
+    Evaluation Kits OLED display.
+
+  * A NuttX Ethernet driver for the Microchip ENC28J60 SPI Ethernet
+    chip is available in the source tree (but has not yet been fully
+    verified because I haven't properly connected it to hardware
+    yet).
+
+  * The Olimex STR-P711 NuttX port was extended to support the
+    ENC28J60 and some new networking configurations were added.
+    The ENC28J60 has not been tested on the STR-P711, however,
+    because of hardware issues (I don't think the USB powered board
+    provides enough power for the ENC28J60 and I don't have the
+    right wall wart yet).
+
+    Along the way, external interrupt support (XTI) was added to
+    the STMicro STR-P711 port and some important bugs were fixed
+    in the STR-P711 SPI driver.
+
+  * Added (optional) floating point support for printf().
+    (Contributed by Yolande Cates.)
+
+  * Corrected an important UDP reference counting error.  It was
+    not a serious error, but it trigger an assertion was IS a serious
+    error.
+
+NuttX-5.6
+^^^^^^^^^
+
+This is the 53rd release of NuttX.  This release includes one several
+new drivers for existing NuttX ports:
+
+  * This port adds support for the RiT displays P14201 4-bpp,
+    greyscale OLED.  4-bpp greyscale support was integrated into
+    the NX graphics sub-system and verified using the TI/Luminary
+    LP3S6965 Ethernet Evaluation Kit.
+
+  * The M25Px driver was extended for the M24P1 FLASH part (see NOTE).
+
+  * An I2C driver and (basic) SPI driver were added for the NXP
+    LPC313x port.  The I2C interface definition was extended to
+    efficiently handle multiple I2C transfers.
+    (Contributed by David Hewson.)
+
+As well as a few, important USB-related bugfixes (See the ChangeLog
+for details).
+
+This release also includes the beginnings of a port for the NXP
+LPC1768 MCU.  However, it is too early for that port to be useful
+(stay tuned for a future announce of the availability of the LPC1768
+port).
+
+NuttX-5.7
+^^^^^^^^^
+
+This is the 54th release of NuttX.  This release adds basic support
+for one new ARM Cortex-M3 architecture:
+
+  * Added support for NXP LPC1768 MCU as provided on the Nucleus
+    2G board from 2G Engineering (http://www.2g-eng.com).
+  * Some initial files for the LPC17xx family were released in NuttX
+    5.6, but the first functional release for the NXP LPC1768/Nucleus2G
+    occurred with NuttX 5.7.
+  * That initial basic release included timer interrupts and a
+    serial console and was verified using the NuttX OS test.
+  * That release includes a verified NuttShell (NSH) configuration
+    (see the http://www.nuttx.org/NuttShell.html).
+  * Also included are unverified SPI and USB device drivers.
+
+Further efforts include:
+  (1) development of a DMA support library
+  (2) SPI-based MMC/SD support
+  (3) verification of the USB driver
+
+Watch for announcement of the completed LPC1768 port expected in
+NuttX-5.8.
+
+NuttX-5.8
+^^^^^^^^^
+
+This is the 55th release of NuttX.  This includes several important
+bugfixes:
+
+  * Corrects some interrupt vectoring for the TI/Stellarix LM3S
+    port
+  * Correct initialization logic for NXP LPC17xxx NuttX ports:
+    Power was not being provided to the GPIO module!
+  * Corrected (but did not verify) implementation of the optional
+    interrupt stack feature (all Cortex M3 architectures).
+  * Correct a HardFault in the LPC17xx SSP driver.
+
+Additional minor fixes are also included as detailed in the ChangeLog.
+
+Several new features have been fully developed and included in this
+release, but full verification of most of these new features has
+been blocked for a variety of issues:
+
+  * Added microSD support for the NuttShell (NSH) configuration in
+    the Nucleus2G LPC1768 port.  For reasons that have not yet been
+    determined, I have not successfully accessed the microSD card
+    as of this writing.
+  * Two USB configurations were also added for the Nucleus2G board:
+    One to support the USB serial device and one for the USB mass
+    storage device.  Some testing of the USB driver was performed,
+    but full verification is stalled for an OTG style USB cable.
+  * LEDs now work correctly on the Nucleus2G LPC1768 board.
+  * The NuttX/uIP networking subsystem now supports IGMPv2 client.
+    IGMP (Internet Group Multicast Protocol) network "appliances"
+    to join into multicast groups.  Outbound traffic to enter and
+    leave multicast groups has been verified, but full verification
+    will require a switch capable of multicast.  Issues associated
+    with the receipt of multicast packets are likely.
+
+NuttX-5.9
+^^^^^^^^^
+
+This is the 56th release of NuttX.  This release is difficult to
+categorize; NuttX-5.9 was really released because there were too
+many changes accumulating in CVS -- a few important, some unfinished
+implementations, and a couple of important bugfixes.
+
+  * By far biggest change in this release is the complete implementation
+    of on-demand paging support.  This feature will allow you to
+    execute large programs on a mass storage device (such as SPI
+    FLASH) in a small RAM.  All of the core on-demand paging logic
+    was completed (see http://www.nuttx.org/NuttXDemandPaging.html)
+    and support was implemented for the ARM-9 family.  A test
+    configuration is in place for the NXP LPC3131.  It has been
+    verified that this new logic does not interfere with normal
+    fixed-page ARM9 operation, but otherwise this new on-demand
+    paging feature is untested.
+  * Add support for the CodeSourcery toolchain to the Olimex-lpc2378
+    port and for the Neuros OSD port.
+  * The Neuros OSD port has been updated to work with the production
+    v1.0 OSD (previously it only worked with the development board).
+  * And some miscellaneous feature enhancements as detailed in the
+    ChangeLog.
+
+This includes several important bugfixes:
+
+  * NXP LPC17xx - Fixed a critical bug in the GPIO configuration
+    logic: When attempting to set no pull-up or pull-down (floating),
+    it would, instead, select pull-down.
+
+  * TI/Luminary LM3Sxxxx - Fixed:
+    (1) A logic error in an address table lookup.
+    (2) GPIO port encoding the limited support to only 8 GPIO ports.
+
+  * Corrected the lease time in the DHCPC implementation:  It was
+    not in host byte order.
+
+  * And several other less important bugs as documented in the
+    ChangeLog: Warnings, cornercase compilation problems, etc.
+
+NuttX-5.10
+^^^^^^^^^^
+
+This is the 57th release of NuttX.  This release includes a combination
+of some new features as well as several bugfixes.  New features
+include:
+
+  * TI/Luminary Stellaris LM3S9B96:
+    Header file changes contributed by Tiago Maluta.
+  * TI/Luminary Stellaris LM3S8962:
+    Header file changes and support for the Stellaris LM3S8962
+    Ethernet+CAN Evaluation Board contributed by Larry Arnold.
+  * On-Demand Paging Support:
+    The basic logic for the On-Demand Paging feature is complete,
+    implemented for the NXP LPC3131, and partially tested.  See
+    http://www.nuttx.org/NuttXDemandPaging.html.  Some additional
+    test infrastructure will be needed in order to complete the
+    verification.  See configs/ea3131/README.txt for details.
+  * Two Pass Build Support:
+    The make system now supports a two pass build where a relocatable,
+    partially linked object is created on the first pass and that
+    object is linked with the NuttX libraries to produce the final
+    executable on the second pass.  This two pass build is currently
+    only used to support the On-Demand paging feature:  The first
+    pass link forces critical logic into the locked text region;
+    the second pass builds the NuttX executable more-or-less as
+    normal.
+  * CONFIG_APP_DIR:
+    Generalized the way in which applications are built and linked
+    with NuttX.  The new configuration CONFIG_APP_DIR replaces
+    CONFIG_EXAMPLE.  CONFIG_EXAMPLE used to identify the sub-directory
+    within the NuttX examples/ directory that held the example
+    application to be built.  That made it awkward to configure to
+    build an application that resides outside of the NuttX examples/
+    directory.  CONFIG_APP_DIR is more general; it can be used to
+    refer to any directory containing the application to be built.
+
+    For people who have their own configurations and/or Makefiles,
+    you will need to make a couple of changes:
+
+      - Replace all occurrences of CONFIG_EXAMPLE=foobar with
+    CONFIG_APP_DIR=examples/foobar in all of the configuration
+    files.
+      - Replace any occurrences of examples/$(CONFIG_EXAMPLE) with
+    $(CONFIG_APP_DIR)
+      - Replace any occurrences of lib$(CONFIG_EXAMPLE)$(LIBEXT)
+        with libapp$(LIBEXT) in your Makefiles.
+      - Check any other occurrences of CONFIG_EXAMPLE.
+
+  * Several bugfixes are included as well as code changes to eliminate
+    some warnings.  See the ChangeLog for details.
+
+NuttX-5.11
+^^^^^^^^^^
+
+This is the 58th release of NuttX.  This is a bugfix release.
+
+  * One very important bug fixes a race condition that can occur
+    using semaphores that can be awakened by signals.  Under this
+    particular race condition, a task could hang waiting for a
+    semaphore.
+  * Corrections to lm3s8962 port contributed by Larry Arnold.  That
+    port is purported to work correctly with these changes in place.
+
+Plus less critical bugfixes as detailed in the ChangeLog.  New features
+include:
+
+  * A new configuration to support the mbed.org LPC1768 board.
+    (Contributed by Dave Marples.)
+  * A driver for the Atmel AT45DB161D 4Mbit SPI FLASH part
+
+NuttX-5.12
+^^^^^^^^^^
+
+This is the 59th release of NuttX.  This is a critical bugfix release.
+
+  * Fixed an important error in the signal trampoline logic.
+    Essentially, interrupts are re-enabled while the signal handler
+    executes, but the logic to re-disable the interrupts before
+    returning from the signal handler trampoline was missing.  Under
+    certain circumstances, this can cause stack corruption.  This
+    was discovered by David Hewson on an ARM9 platform, but since
+    the code has been leveraged, the bug has been propagated from
+    ARM to Cortex-M3, AVR32, M16C, SH1, ZNEO, eZ80, Z8, and Z80 --
+    almost every architecture. The correction has been incorporated
+    for all architectures but only verified on a few.
+
+Other notable changes in NuttX-5.12:
+
+  * A complete port for the AVR32 (AT32UC3B0256) is incorporated
+    in the source tree.  Testing of this port is underway now.  This
+    release was made before verifying this port in order to get the
+    important bugfix in place.
+
+  * Other miscellaneous bugfix and enhancements as noted in the
+    ChangeLog.
+
+NuttX-5.13
+^^^^^^^^^^
+
+This is the 60th release of NuttX.  Headlines for this release
+include:
+
+  * AVR32, www.mcuzone.com AVR32DEV1
+
+    The port for the www.mcuzone.com AVRDEV1 board based on the
+    Atmel AT32UC3B0256 MCU was (almost) fully integrated. The port
+    now successfully passes the NuttX OS test (examples/ostest).
+    A NuttShell (NSH) configuration is in place (see the NSH User
+    Guide at http://www.nuttx.org/NuttShell.html). Testing of that
+    NSH configuration, however, has been postponed (because it got
+    bumped by the Olimex LPC1766-STK port -- see below)
+
+    Current Status: I think I have a hardware problem with my serial
+    port setup. There is a good chance that the NSH port is complete
+    and functional, but I am not yet able to demonstrate that. At
+    present, I get nothing coming in the serial RXD line (probably
+    because the pins are configured wrong or I have the MAX232
+    connected wrong).
+
+    A complete port will include drivers for additional AVR32 UC3
+    devices -- like SPI and USB --- and will be available in a
+    later release, time permitting.
+
+  * LPC1766, Olimex LPC1766-STK
+
+    Support for the Olimex-LPC1766 is newly added to NuttX and is
+    still undergoing development, test, and integration. Verified
+    configurations for the NuttX OS test and for the NuttShell (NSH,
+    see the NSH User Guide at http://www.nuttx.org/NuttShell.html.
+    Additional USB configurations are in the release as well, but
+    they have not yet been verified.  Goals for NuttX-5.14 include:
+    (1) An Ethernet driver, (2) Verified USB support, and (3) SD
+    card support.
+
+  * Additional changes and bugfixes as detailed in the ChangeLog.
+
+NuttX-5.14
+^^^^^^^^^^
+
+The 61st release of NuttX, NuttX-5.14, was made on November 27,
+2010.  This release includes multiple, important bugfixes as well
+as a new driver for the NXP LPC1766.
+
+Important bugfixes include:
+
+  * Cortex-M3 Hard Fault.  Fixed a hard fault problem that can occur
+    if certain types of interrupts are pending at the time another
+    interrupt returns. This problem has only been observed on the
+    LPC1766 (returning from a SYSTICK interrupt with a pending
+    Ethernet interrupt).  However, it is assumed that all Cortex-M3
+    ports could have this as a latent bug.
+
+  * TCP/IP Sequence Number Bug.  Corrected errors some important
+    logic in the way that sequence numbers are managed when send()
+    sends out packets before a previous packet has been acknowledged.
+    Some of that send() logic was incompatible with logic in the
+    uIP layer.  Errors seen include: (1) The final final packet in
+    a sequence of packets might be too large!  In the THTTPD example,
+    this might leave some garbage at the bottom of the display. Or
+    (2) send() might hang with outstanding, unacknowledged data
+    (and with no re-transmission requests).  This was due to
+    differences in sequence number handling in send() and in
+    uip_tcpinput.c; uip_tcpinput.c thought (incorrectly) that all
+    of the bytes were acknowledged; send.c knew that they were not.
+
+  * One-Shot POSIX Timer Bug. Fixed an error in set-up of a one-shot
+    POSIX timer.  It was using the repetitive timer value (which
+    is zero in the one-shot case), always resulting in a 10Ms timer!
+    Found and fixed by Wilton Tong.
+
+Additional support has been included for the Olimex-LPC1766.  Support
+for that board was added to NuttX 5.13.  This release extends that
+support with an Ethernet driver.  Verified configurations are now
+available for the NuttX OS test, for the NuttShell (NSH, see
+http://www.nuttx.org/NuttShell.html), for the NuttX network test,
+and for the THTTPD webserver. (Additional USB configurations are
+in the release as well, but those have not yet been verified.  Goals
+for NuttX-5.15 (and beyond) include: (1) Verified USB support, (2)
+SD card support, and (3) LCD support.
+
+NuttX-5.15
+^^^^^^^^^^
+
+The 62nd release of NuttX, NuttX-5.15, was made on December 12,
+2010.  This release includes several bugfixes as well as feature
+enhancements, primarily for the Olimex LPC1766-STK board.
+
+Important bugfixes included:
+
+  * Additional fixes needed with the TCP sequence number problem
+    "fixed" in NuttX-5.14.
+  * In the send() logic, now checks if the destination IP address
+    is in the ARP table before sending the packet; an ARP request
+    will go out instead.  This improves behavior, for example, on
+    the first on the first GET request from a browser
+  * All USB class drivers need to call DEV_CONNECT() when they are
+    ready to be enumerated.  That is, (1) initially when bound to
+    the USB driver, and (2) after a USB reset.
+  * The SPI_SETBITS macro was calling the SPI setmode method.
+  * And several other bug fixes of lower importance (see the
+    ChangeLog for details).
+
+And feature enhancements:
+
+  * The LPC176x Ethernet driver was using all of AHB SRAM Bank0 for
+    Ethernet packet buffers (16K).  An option was added to limit
+    the amount of SRAM used for packet buffering and to re-use any
+    extra Bank0 memory for heap.
+
+  * Enabled networking and SD/MMC card support in the Olimex
+    LPC1766-STK NuttShell (NSH) configuration.
+
+  * The LPC176x USB driver is now fully fully functional.
+  * Added an optional cmddata() method to the SPI interface.  Some
+    devices require an additional out-of-band bit to specify if the
+    next word sent to the device is a command or data. The cmddata
+    method provides selection of command or data.
+
+  * A driver for the Nokia 6100 LCD (with either the Phillips PCF8833
+    LCD controller and for the Epson S1D15G10 LCD controller) and
+    an NX graphics configuration for the Olimex LPC1766-STK have
+    been added.  However, neither the LCD driver nor the NX
+    configuration have been verified as of the this release.
+
+NuttX-5.16
+^^^^^^^^^^
+
+The 63rd release of NuttX, Version 5.16, was made on January 10,
+2010 and is available for download from the SourceForge website.
+This release includes initial support for USB host in NuttX. The
+USB host infrastructure is new to NuttX. This initial USB host release
+is probably only beta quality; it is expected the some bugs remain
+in the logic and that the functionality requires extension.
+
+Below is a summary of the NuttX USB host implementation as extracted
+from the NuttX Porting Guide:
+
+  6.3.9 USB Host-Side Drivers
+  * include/nuttx/usb/usbhost.h. All structures and APIs needed to
+    work with USB host-side drivers are provided in this header
+    file.
+  * struct usbhost_driver_s. Each USB host controller driver must
+    implement an instance of struct usbhost_driver_s. This structure
+    is defined in include/nuttx/usb/usbhost.h.  Examples:
+    arch/arm/src/lpc17xx/lpc17_usbhost.c.
+  * struct usbhost_class_s. Each USB host class driver must implement
+    an instance of struct usbhost_class_s. This structure is also
+    defined in include/nuttx/usb/usbhost.h.  Examples:
+    drivers/usbhost/usbhost_storage.c
+  * USB Host Class Driver Registry. The NuttX USB host infrastructure
+    includes a registry. During its initialization, each USB host
+    class driver must call the interface, usbhost_registerclass()
+    in order add its interface to the registry. Later, when a USB
+    device is connected, the USB host controller will look up the
+    USB host class driver that is needed to support the connected
+    device in this registry.  Examples: drivers/usbhost/usbhost_registry.c,
+    drivers/usbhost/usbhost_registerclass.c, and
+    drivers/usbhost/usbhost_findclass.c,
+  * Detection and Enumeration of Connected Devices. Each USB host
+    device controller supports two methods that are used to detect
+    and enumeration newly connected devices (and also detect
+    disconnected devices):
+    + int (*wait)(FAR struct usbhost_driver_s *drvr, bool connected);
+      Wait for a device to be connected or disconnected.
+    + int (*enumerate)(FAR struct usbhost_driver_s *drvr);
+      Enumerate the connected device. As part of this enumeration
+      process, the driver will (1) get the device's configuration
+      descriptor, (2) extract the class ID info from the configuration
+      descriptor, (3) call usbhost_findclass() to find the class
+      that supports this device, (4) call the create() method on
+      the struct usbhost_registry_s interface to get a class instance,
+      and finally (5) call the connect() method of the struct
+      usbhost_class_s interface. After that, the class is in charge
+      of the sequence of operations.
+  * Binding USB Host-Side Drivers. USB host-side controller drivers
+    are not normally directly accessed by user code, but are usually
+    bound to another, higher level USB host class driver. The class
+    driver exports the standard NuttX device interface so that the
+    connected USB device can be accessed just as with other, similar,
+    on-board devices. For example, the USB host mass storage class
+    driver (drivers/usbhost/usbhost_storage.c) will register a
+    standard, NuttX block driver interface (like /dev/sda) that can
+    be used to mount a file system just as with any other other
+    block driver instance. In general, the binding sequence is:
+
+    1. Each USB host class driver includes an initialization entry
+       point that is called from the application at initialization
+       time.  This driver calls usbhost_registerclass() during this
+       initialization in order to makes itself available in the
+       event the the device that it supports is connected.  Examples:
+       The function usbhost_storageinit() in the file
+       drivers/usbhost/usbhost_storage.c
+    2. Each application must include a waiter thread thread that
+       (1) calls the USB host controller driver's wait() to detect
+       the connection of a device, and then (2) call the USB host
+       controller driver's enumerate method to bind the registered
+       USB host class driver to the USB host controller driver.
+       Examples: The function nsh_waiter() in the file
+       configs/nucleus2g/src/up_nsh.c and the function nsh_waiter()
+       in the file configs/olimex-lpc1766stk/src/up_nsh.c.
+    3. As part of its operation during the binding operation, the
+       USB host class driver will register an instances of a standard
+       NuttX driver under the /dev directory. To repeat the above
+       example, the USB host mass storage class driver
+       (drivers/usbhost/usbhost_storage.c) will register a standard,
+       NuttX block driver interface (like /dev/sda) that can be
+       used to mount a file system just as with any other other
+       block driver instance.  Examples: See the call to
+       register_blockdriver() in the function usbhost_initvolume()
+       in the file drivers/usbhost/usbhost_storage.c.
+
+NuttX-5.17
+^^^^^^^^^^
+
+The 64th release of NuttX, Version 5.17, was made on January 19,
+2011 and is available for download from the SourceForge website.
+This release follows close on the heels of the 5.16 release and
+extends the USB host capabilities first introduced in that version.
+
+  * The LPC17xx USB host controller driver was extended to (1) add
+    support for low-speed devices, (2) handle multiple concurrent
+    transfers on different endpoints (still only one TD per endpoint),
+    and (3) handle periodic interrupt endpoint types.
+
+  * Add a USB host HID keyboard class driver.  Now you can connect
+    a standard USB keyboard to NuttX and receive keyboard input for
+    an application.
+
+And other changes as detailed in the ChangeLog.
+
+NuttX-5.18
+^^^^^^^^^^
+
+The 65th release of NuttX, Version 5.18, was made on February 27,
+2011 and is available for download from the SourceForge website.
+This is first release from the new NuttX SVN repository.  This
+release is made primarily to keep the release tarball in synchronization
+with SVN.  Many smaller changes have been made as identified in the
+ChangeLog.  Headlines include:
+
+  * Incorporate several important uIP patches -- including the well
+    known patch to handle missing SYNACK.
+  * The Freescale mc8s12ne64 port is code complete but testing has
+    not yet begun due to toolchain issues.  Added support for the
+    Future Electronics Group NE64 Badge board.
+  * Added support for a new STM32 board, the ISOTEL NetClamps VSN
+    V1.2 ready2go sensor network platform.  This board is based on
+    a STM32F103RET6 and includes some interesting power saving/clock
+    control extensions.
+  * USB host support expanded to handle vendor specific USB devices.
+  * Incorporated the LUFA HID parser.
+  * Various bugfix as detailed in the ChangeLog
+
+NuttX-5.19
+^^^^^^^^^^
+
+The 66th release of NuttX, Version 5.19, was made on March 12, 2011
+and is available for download from the SourceForge website.  This
+release includes several new features in various states of integration
+and maturity:
+
+  * 486SX QEMU port.  This port supports the Intel 486SX architecture
+    using the QEMU simulator.  Initial functionality is in place a
+    partially tested.  There are still some outstanding issues with
+    timer interrupts.
+  * Platform specific application support.  A new apps/ directory
+    appears in this port.  This apps/ directory provides a mechanism
+    for applications using NuttX to have a highly customized
+    initialization process. It supports a set of end-user applications
+    than can be executed (1) standalone so you can have a fully
+    customized application startup, or (2) on top of NSH.  Think
+    of it this way:  In a buckled-up embedded application, your
+    end-user programs will probably have their own dedicated start-up
+    logic.  But, during development, you might want to have you
+    applications available and executable from the NSH command line.
+    This apps/ add-on (and NSH hooks) was contributed by Uros to
+    accomplish just that.
+  * NSH was also extended to support application specific ROMFS
+    /etc/init.d/rcS start-up scripts.  This feature, as well, as
+    all of the above-mentioned apps/ directory support was contributed
+    by Uros Platise
+  * Additional NSH improvements and bug fixes.  See the Changelog
+    for details.
+  * This release also provides a new SLIP network driver.  This
+    driver should support point-to-point network communications to
+    a host using TCP/IP or UDP.  This driver is code complete, but
+    not tested in this release.
+  * New RAMTRON FRAM driver (contributed by Uros Platise)
+  * New generic 16550 UART driver.
+  * Cortex-M3 Power improvements: Waits for Interrupt (WFI) in idle
+    loop for reduced power consumption (LPC17xx and STM32 only -
+    contributed by Uros Platise))
+  * New waitpid() system interface.
+  * Additional bugfixes: pipes, stdint.h, STM32 SDIO and SPI drivers
+
+NuttX-6.0
+^^^^^^^^^
+
+The 67th release of NuttX, Version 6.0, was made on March 21, 2011
+and is available for download from the SourceForge website.  The
+version number of this release was bumped from 5.19 to 6.0.  A
+change in the major revision number is used to reflect an incompatibility
+with previous versions.  In this release, the NuttX core OS
+functionality has been separated from NuttX application-related
+functionality.  These are provided as separate tarballs:
+
+  * nuttx-6.0.tar.gz, and
+  * apps-6.0.tar.gz
+
+The purpose of this separation is both to better organize and
+modularize the NuttX source tree, but also to provide better support
+for incorporation of end-user applications with Nuttx.
+
+The incompatibility results from the changes to the board configuration
+logic needed to supported the separable application.  The major
+changes to the configuration include:
+
+  * CONFIG_APPS_DIR - This should not be set.  The default is
+    ../apps.  This should only be set if you have a custom,
+    product-specific application directory in some different location.
+
+  * appconfig - Each board configuration now requires a new file
+    called 'appconfig.'  As its name suggests, this file provides
+    new configuration information needed by the logic in ../apps.
+
+In addition to this major reorganization in the directory structure,
+this release also includes some important extensions to existing
+features and some important bugfixes.  These include:
+
+  * The SLIP driver was been well debugged and significantly
+    re-designed.  Now you can have an Ethernet connection to you
+    board even if you have no Ethernet hardware.  How cool is that?
+
+  * The QEMU i486 port is now functional.  It has also been reported
+    to work on the Bifferboard (see http://bifferos.bizhat.com/).
+
+  * And extensions to the uIP driver interface, and
+
+  * Bug fixes to fopen() and STM32 GPIO configuration
+
+Please see the ChangeLog for details.
+
+NuttX-6.1
+^^^^^^^^^
+
+The 68th release of NuttX, Version 6.1, was made on April 10, 2011
+and is available for download from the SourceForge website.  The
+6.0 release introduced a detach-able application environment to
+build applications outside of the NuttX source tree.  The primary
+purpose of this release is to correct numerous build problems
+introduced by that architectural change:
+
+  * In many newer environments, NuttX produced strange Makefile
+    errors but built correctly in older environments.  A fix provided
+    by Rafael Noronha was incorporated and is reported to fix those
+    build problems.
+  * The apps/ directory build system would not handle Windows-native
+    toolchains due to obscure path formatting issues.
+  * And other problems as detailed in the Changelog.
+
+Many additional changes were made in the 6.1 release for another
+major architectural change:  NuttX will now build as a separately
+linked microkernel.  In this build option the RTOS builds as a
+kernel, applications build separately and interface with kernel via
+system calls.  Applications run in user mode and kernel logic users
+in kernel-mode.  This provides a secure environment for NuttX.  This
+feature is fully coded in NuttX-6.1, but has not been tested due
+to higher priority tasks that have arisen.
+
+Related to this change, support for the Cortex-M3 memory protection
+unit (MPU) has been integrated with the NuttX kernel build to provide
+an even higher level of security.
+
+NOTE: This kernel build is an option; the default build configuration
+is still the standard, flat, unsecured RTOS as in previous releases.
+
+Additional new features in this release:
+
+  * Support for LPC17xx GPIO interrupts (with much support from
+    Decio Renno).
+  * Basic timer support for STM32 (Contributed by Uros Platise)
+  * A binfs file system.  This is a tiny pseudo file system that
+    lets named applications to be viewed and accessed in NSH under
+    the /bin directory.
+  * An I2C-based driver for the LIS331DL MEMS motion sensor.
+    (Contributed by Uros Platise.)
+  * A configuration for the Embedded Artists LPCXpresso LPC1768 board.
+  * The user_initialize() interface has been removed.
+
+And several bugfix associated with SD drivers, opendir(), signed
+8-bit types (int8_t), and USB serial device.  See the ChangeLog for
+details.
+
+NuttX-6.2
+^^^^^^^^^
+
+The 69th release of NuttX, Version 6.2, was made on May 6, 2011 and
+is available for download from the SourceForge website.  The 6.2
+release includes several new features:
+
+  * NXFFS: The obvious new feature is NXFFS, the NuttX wear-leveling
+    FLASH file system.   This new file system is intended to be
+    small for the MCU usage and has some limitations.  No formal
+    documentation of NXFFS yet exists.  See the fs/nxffs/README.txt
+    file for details (see
+    http://nuttx.svn.sourceforge.net/viewvc/nuttx/trunk/nuttx/fs/nxffs/README.txt?view=log)
+  * Support for NXP LPCXpresso LPC1768 board on the Embedded
+    Artists base board.  The Code Red toolchain is supported under
+    either Linux or Windows.   Verified configurations include
+    dhcpd, nsh, nx, ostest, thttpd, and usbstorage.
+  * Support for the Univision UG-9664HSWAG01 OLED with Solomon
+    Systech SD1305 LCD controller.
+  * A new RAM MTD driver with FLASH simulation capability.
+  * A version.h file is now automatically generated so that C code
+      can now be version aware.
+
+In addition to these new feature, several important bugfixes are
+included in this release correcting problems with dup2(), LPC17xx
+GPIO interrupts, LPC17xx UART2/3, the FAT file system, build issues,
+and strrch().  See the ChangeLog for more details.
+
+NuttX-6.3
+^^^^^^^^^
+
+The 70th release of NuttX follows only a nines days after the release
+of version 6.2.  It was released on May 15, 2011.  This special
+back-to-back release was made so that the current released version
+of NuttX will correspond to the initial release from the RGMP
+project.
+
+This release adds architecture support and build configuration for
+RGMP.  RGMP is a project for running GPOS and RTOS simultaneously
+on multi-processor platforms. See
+http://rgmp.sourceforge.net/wiki/index.php/Main_Page for further
+information about RGMP.
+
+This release also includes support for STM32 FLASH, build improvements,
+and initial, incomplete support for the MicroChip PIC32MX MCU.  Bug
+fixes are included for some build problems, USB host class driver
+error handling, NX graphics color mapping, and problems with C
+standard I/O buffer flushing.  See the ChangeLog for further details.
+
+NuttX-6.4
+^^^^^^^^^
+
+The 71st release of NuttX, Version 6.4, was made on June 6, 2011
+and is available for download from the SourceForge website.  The
+6.4 release includes several new features:
+
+  * A new, full-featured FTP client.  This client may be used as a library
+    for automated FTP or via an FTP client shell.  The FTP shell
+    supports the following commands: cd, chmod, get, help, idle,
+    login, ls, quit, mkdir, noop, put, pwd, rename, rhelp, rm,
+    rmdir, size, time, and up.  A configuration is available for
+    the NXP LPC17xx to demonstrate this functionality.
+  * A functional C1101 wireless driver (contributed by Uros Platise)
+  * A PCI-based E1000 Ethernet driver (contributed by Yu Qiang)
+  * New C library functions: inet_addr() (contributed by Yu Qiang),
+    strndup(), asprintf()
+  * Reduced memory allocation overhead for MCUs with small heaps (<64K).
+  * fdopen() now works with socket descriptors allowing standard
+    buffered C functions to be used for network communications.
+  * The NSH ifconfig command can now be used to set or change the
+    IP address (contributed by Yu Qiang)
+
+This release also includes some completed but untested functionality.
+
+  * The MicroChip PIC32MX port is now code complete and ready to
+    begin testing.  Unfortunately, testing will be delayed due to
+    tool issues.
+  * Support for the NXP LPC315x MCUs.
+
+Additional miscellaneous enhancements and bug fixes to task_delete(),
+recvfrom(), and other changes as noted in the ChangeLog.
+
+NuttX-6.5
+^^^^^^^^^
+
+The 72nd release of NuttX, Version 6.5, was made on June 21, 2011
+and is available for download from the SourceForge website.  The
+6.5 release is all about support for the Atmel 8-bit AVR family.
+I have been interested in the AVR family for some time but because
+of the severe SRAM constraints and because of the availability of
+many tiny schedulers for the AVR, it has not been "on the radar
+screen."  However, I have recently become interested because of
+interest expressed by members of the forum and because of the
+availability of newer, larger capacity AVR parts (that I don't have
+yet).
+
+This release includes support for the following AVR boards.  As
+with any initial support for new architectures, there are some
+incomplete areas and a few caveats that need to be stated.  Here
+they are, ordered from the least to the most complete:
+
+  * SoC Robotics Amber Web Server (ATMega128).
+
+    This port of NuttX to the Amber Web Server from SoC Robotics
+    (http://www.soc-robotics.com/index.htm).  Is only partially in
+    place.  The Amber Web Server is based on an Atmel ATMega128
+    (128K FLASH but only 4K of SRAM).
+
+    STATUS: Work on this port has stalled due to toolchain issues.  It
+    is complete, but untested.
+
+  * Micropendous 3 AT9USB647
+
+    This port of NuttX to the Opendous Micropendous 3 board. The
+    Micropendous3 may be populated with an AT90USB646, 647, 1286,
+    or 1287.  See http://code.google.com/p/opendous/. I have only
+    the AT90USB647 version for testing.  This version has very
+    limited memory resources: 64K of FLASH and 4K of SRAM.
+
+    STATUS: The basic port was released in NuttX-6.5.  This basic
+    port consists only of a "Hello, World!!" example that demonstrates
+    initialization of the OS, creation of a simple task, and serial
+    console output.  The tiny SRAM limits what you can do with the
+    AT90USB647 (see issues below).
+
+  * PJRC Teensy++ 2.0 AT9USB1286
+
+    This is a port of NuttX to the PJRC Teensy++ 2.0 board.  This
+    board was developed by PJRC (http://pjrc.com/teensy/). The
+    Teensy++ 2.0 is based on an Atmel AT90USB1286 MCU with 128K
+    of FLASH and 8K of SRAM; a little more room to move than the
+    AT90USB647.
+
+    STATUS:  The basic port was released in NuttX-6.5.  This basic
+    port consists of a "Hello, World!!" example and also slightly
+    simplified NuttShell (NSH) configuration (see the NSH User Guide
+    at http://www.nuttx.org/NuttShell.html).
+
+    An SPI driver and a USB device driver exist for the AT90USB as
+    well as a USB mass storage configuration.  However, this
+    configuration is not fully debugged as of the NuttX-6.5 release.
+
+AVR-specific issues.  The basic AVR port is solid and biggest issue
+for using AVR is its tiny SRAM memory and its Harvard architecture.
+Because of the Harvard architecture, constant data that resides to
+flash is inaccessible using "normal" memory reads and writes (only
+SRAM data can be accessed "normally").  Special AVR instructions
+are available for accessing data in FLASH, but these have not been
+integrated into the normal, general purpose OS.
+
+Most NuttX test applications are console-oriented with lots of
+strings used for printf and debug output.  These strings are all
+stored in SRAM now due to these data accessing issues and even the
+smallest console-oriented applications can quickly fill a 4-8K
+memory.  So, in order for the AVR port to be useful, one of two
+things would need to be done:
+
+1. Don't use console applications that required lots of strings.
+   The basic AVR port is solid and your typical deeply embedded
+   application should work fine.
+
+2. Create a special version of printf that knows how to access
+   strings that reside in FLASH (or EEPROM).
+
+NuttX-6.6
+^^^^^^^^^
+
+The 73rd release of NuttX, Version 6.6, was made on July 11, 2011
+and is available for download from the SourceForge website.  The
+6.6 release adds several smaller features but is mostly a bugfix
+release.
+
+Bugfixes include
+
+  * Fixed several NX Graphics bugs: Rendering fonts at >8 bits-per-pixel,
+    graphics move logic, and display artifacts that appear when a
+    window is closed.
+  * Corrections to the USB host mass storage class driver
+  * STM32 bugfixes: serial driver, GPIO interrupt handling
+  * LPC17xx: Changes for a success compilation with no console.
+  * Corrections to the Teensy AT90USB SD driver
+  * Changes for a clean compilation under the ZDS-II toolchain.
+
+Minor features:
+
+  * Add logic to extract printf strings from FLASH (but there are
+    still printf issues for that target)
+  * Added a configuration for the Sure Electronics PIC32MX board.
+    However, higher priority tasks have stopped work on that
+    configuration.
+  * Added several new configurations for the STMicro STM3210E-EVAL
+    board.
+  * Added support for the STM3210E-EVAL board: (1) LCD in either
+    landscape or portrait mode, and (2) interrupting buttons.
+  * Added a configuration option to use different serial ports for
+    debug and for the NSH serial console (there are some issues
+    with CR-LF expansion and character echo if NSH is not run on
+    the console).
+  * Standardized the button press and button interrupt interfaces
+    so that they are common across all boards.
+  * Added a new graphics example that focuses on placing text on
+    the background while pop-up windows occur.  Text should continue
+    to update normally with or without the popup windows present.
+  * Added ARM stack checking logic.
+
+See the ChangeLog for a detailed description of these changes.
+
+NuttX-6.7
+^^^^^^^^^
+
+The 74th release of NuttX, Version 6.7, was made on August 2, 2011
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.7.tar.gz and
+apps-6.7.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).  Changes in this release are summarized
+below:
+
+  * New OS APIs: Add the standard sem_timedwait() interface.
+  * FAT File System:  Adds (optional) support for VFAT long file
+    names.
+  * USB:  Now the mass storage device can be connected when needed
+    and disconnected when not needed (or re-connected as a different
+    kind of device).
+  * Touchscreen Support:  Defined a new NuttX touchscreen interface.
+    Added a driver for the TI TSC2007 touchscreen controller chip.
+  * NX Fonts:  Add support for multiple fonts; developed a tool to
+    convert open source fonts into NuttX format; Converted and
+    installed nine new, high quality fontsets.
+  * NX Graphics: Add new NX APIs to support drawing of wide lines
+    in any orientation.  Added new low level routines to set
+    individual pixel more efficiently.
+  * Build system:  Added a export target that will bundle up all
+    of the NuttX libraries, header files, and the startup object
+    into an exportable tarball.
+  * LPC17xx: A CAN driver was contributed by Li Zhuoyi (Lzyy).
+  * STM32: New NX-related configurations to exercise text and
+    graphic image displays.
+  * C Library:  Added a fixed precision atan2() math function.
+  * Bugfixes:  Serial RX overrun error, FAT upper/lower NT 8.3 name
+    handling fixed.  FAT directory allocation and initialization
+    bug.  STM32 SDIO DMA race condition bug.  eZ80 UART1 serial
+    driver errors (Paul Osmialowski)
+
+NuttX-6.8
+^^^^^^^^^
+
+The 75th release of NuttX, Version 6.8, was made on August 19, 2011
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.8.tar.gz and
+apps-6.8.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).  Changes in this release are summarized
+below:
+
+  * NuttX has been ported to run on the Freescale Cortex-M4 "Kinetis"
+    boards.  Two board ports are available for (1) the Kinetis
+    KwikStik-K40 and (2) the Kinetis TWR-K60N512 tower.
+  * Support for RGMP 0.3.  This version of RGMP now runs on the
+    OMAP4430 (arm) pandaboard
+  * LPC17xx CAN driver extended to support both CAN1 and CAN2
+    (submitted by Li Zhuoy (Lzzy))
+  * Fixed several critical bugs related to signal handling
+    initialization and for signals the wake up tasks that are waiting
+    to send or receive message queues.Both are important.  (submitted
+    by hkwilton).
+  * drivers/can.c:  Fixed a semaphore overflow problem in the CAN
+    driver (reported by Li Zhouy (Lzzy)).
+  * Added a new ADC driver infrastructure and TI ADS1255 driver
+    both developed and submitted by Li Zhouy (Lzzy)).
+
+See the Changelog for additional changes included in this release.
+
+NuttX-6.9
+^^^^^^^^^
+
+The 76th release of NuttX, Version 6.9, was made on September 11, 2011
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.9.tar.gz and
+apps-6.9.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).
+
+This release includes a few new features and several important bug fixes.
+The new features (some still incomplete) include:
+
+  * Analog Support/ NXP LPC17xx: New DAC sub-system including ADC and DAC
+    drivers for the LPC17xx.  Extensions to the ADS1255 driver.
+    (Contributed by Li Zhuoyi (Lzyy))
+
+  * Power Management:  Added a new NuttX power management sub-system for
+    controlling and coordinating reduced power states.  At present, only
+    verified in a simulation environment.
+
+  * I2C Test Tool:  A new application was added that can be used to
+    verify and debug I2C interfaces from the NuttShell (NSH) command
+    line.
+
+  * NuttShell (NSH):  In addition to the I2C test tool, a date command
+    is now supported (if CONFIG_RTC is defined) that can be used to
+    read and set the RTC.
+
+  * NXP LPC17xx: I2C and DAC driver for the NXP LPC17xx family submitted by Li Zhuoyi
+   (Lzyy)
+
+  * Kinetis Cortex-M4:  Added a SDHC driver for the Kinetis parts.
+    Complete debug of the Kinetis SDHC driver was not completed, however,
+    do to some higher priority tasks that forced me to stop work.
+
+  * Other new drivers: Driver for I2C-based at24cxx EEPROM submitted by
+    Li Zhuoyi (Lzyy); Driver for the LM-75 temperature sensor.  Support
+    for the LM-75 temperature sensor integrated into the SM3210E-EVAL
+    development board.
+
+  * NuttX Graphics (NX):  Added new NX interfaces for drawing circles,
+    both circle outlines and filled circles.
+
+  * FLASH: Added a function that accepts the path to a block driver and
+    then erases the underlying FLASH memory
+
+  * Build System:  The Make export logic now also tries to track down all
+    architecture-specific header files and include these in the NuttX
+    export bundle as well.  Various changes and modifications so that
+    NuttX wil build on FreeBSD using the ASH shell (submitted by Kurt Lidl).
+
+Bugfixes, order roughly on decreasing criticality include:
+
+  * STM32 I2C Driver:  Add resets, timeout, and other fixes to work
+    reliably with the I2C tool.  Corrected a major error introduced in
+    NuttX 6.8.
+
+  * BCH Driver.  Several important bugs (noted by Li Zhuoyi (Lzyy))
+    were fixed.
+
+  * C Library:  Fixed errors in gmtime() and gmtime_r() that could lead to
+    errors in date calculations.
+
+  * Timing:  Correct an error in the tv_nsec calculation that happens
+    only config CONFIG_RTC is enabled
+
+  * Build System: Use of -print-libgcc-file-name to get path to
+    libgcc.a might select the wrong libgcc.a if a multilib toolchain
+    is used
+
+NuttX-6.10
+^^^^^^^^^^
+
+The 77th release of NuttX, Version 6.10, was made on October 6, 2011
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.10.tar.gz and
+apps-6.10.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).
+
+This release corresponds with SVN release number: r4028
+
+This release includes a few new features and several important bug fixes.
+The new features (some still incomplete) include:
+
+  * CDC ACM serial class device-side driver
+
+  * RTC:  Now supports hi-res and lo-res hardware RTC.  The lo-res RTC
+    runs at 1Hz.
+
+  * STM32 I2C driver.  Now supports faster, polled mode of operation.
+    Added an I2C trace capability.
+
+  * ADS7843E touchscreen driver.  As used on the SAM3U-EK development
+    board.
+
+  * AT91SAM3U SPI driver.  To support the ADS7843E toucscreen
+
+  * X11 Support on simulation target.  Build errors in the X11 windows
+    for the simulated target have been correct.  Added support for a
+    simulated touchscreen on the X11 window (based on mouse inputs).
+
+  * System Timer. Added support for a 64-bit system timer.
+
+  * TIFF Support. Added a TIFF library (currently used for storing
+    LCD screen shots).
+
+  * LCD Support.  Added a test to verify that we read and write correct
+    to LCD GRAM memory.
+
+  * I2C tool. Extended to support to include a verify command and
+    repititions and auto-address increment for most commands.
+
+  * USB terminal example.  Line oriented serial bridge connects a host
+    USB serial terminal to a host UART serial terminal.
+
+  * Build System.  apps/ Makefile will now include external directories
+    in the application build.
+
+Bugfixes, order roughly on decreasing criticality include:
+
+  * Message Queues.  Correct errors in mq_timedsend() and
+    mq_timedrecieve().
+
+  * FAT. Writes that cross sector boundaries, stray write into the FAT,
+    and a FAT long file name issue
+
+  * NXFFS.  Added a missed error check.  Files cannot be opened for
+    writing if they are already opened for reading.
+
+  * Library: fopen() for append modse was not appending.
+
+  * STM32 I2C driver.  Correct another conflict between concurrent FSMC
+    and I2C1 accesses.  Fixed some bad error detection logic.
+
+  * STM32 SDHC driver.  Interrupts were being left disabled.
+
+NuttX-6.11
+^^^^^^^^^^
+
+The 78th release of NuttX, Version 6.11, was made on November 12, 2011
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.11.tar.gz and
+apps-6.11.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).
+
+This release corresponds with SVN release number: r4090
+
+This release is a maintenance release that includes a few new features
+and some important bugfixes.  New features include:
+
+    * NX Graphics:  New interfaces to read from graphics memory
+    * Drivers:  AT24 FLASH driver will now supports clustering of blocks
+      to achieve a larger, more usable block size for NXFFS.
+    * STM32: LCD color corrections
+    * PIC32: Board configuration for the Microchip PIC32 Ethernet Starter kit
+      (not yet verified), new GPIO support library, button and LED support
+      for the Sure Electronics PIC32MX board.  A lot of progress has been
+      made on the PIC32 NuttX port, but it is still not ready for prime time.
+    * NXP LPC3152: Board configuration for the Embedded Artists EA3152.
+
+Bugfixes, order roughly on decreasing criticality include:
+
+    * NXFFS: Corrected critical bugs in initialization, some full FLASH handling,
+      and errors in certain cases where the FLASH is repacked.
+    * ARM EABI: Fix stack aligment required for passing floating point values.
+    * Build system: Fix build issues when g++ is used as the compiler.
+    * NX Graphics: Bitmap error handling, correct RGB color conversion macros,
+      Error when the background window is released.
+    * STM32: RTC build fixes, LCD color corrections
+    * Simulation target: build fixes
+    * C Library: fclose() return value.
+
+See the change log for more detailed information.
+
+NuttX-6.12
+^^^^^^^^^^
+
+The 79th release of NuttX, Version 6.12, was made on December 6, 2011
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.12.tar.gz and
+apps-6.12.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).
+
+This release corresponds with SVN release number: r4141
+
+New features in this release include:
+
+    * STM32. Basic support added for the STM32 F4 family.  Board support
+      verified for the STMicro STM3250G-EVAL board.
+    * FAT.  Enhanced partition handling.
+    * SDIO-Based SD Card support.  Add support for large (>4Gb) devices
+    * Graphics.  Added four new small sans serif fonts.
+    * Drivers. Fix a banding problem with the R61580 LCD.
+
+Bugfixes, order roughly on decreasing criticality include:
+
+    * FAT. Fix errors in how the first entries in the root directory are
+      added.  Fix errors in FAT date/time handling.
+    * Signals.  Fix bug in certain sig_timedwait() error handling.
+    * Drivers. Fix cloned errors in poll() handling in several drivers.
+    * Message Queues.  errno was not being set correctly by mq_notify().
+    * C Library. wchar_t is a built-in type for C++
+
+NuttX-6.13
+^^^^^^^^^^
+
+The 80th release of NuttX, Version 6.13, was made on December 26, 2011
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.13.tar.gz and
+apps-6.13.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).
+
+This release corresponds with SVN release number: r4231
+
+New features in this release include:
+
+    * Drivers. New standard interface for PWM drivers and common
+      "upper half" PWM driver.  Updated the MP25x driver to support
+      the Macronix MX25 chips (submitted by Mohammad Elwakeel).
+    * STM32 F1/F4.  Added an Ethernet driver, ADC drivers, DAC driver,
+      PWM driver, CAN driver, F4 RTC driver, F4 DMA support,
+      logic for saving/restoring F4 FPU registers in context switches.
+    * STM32 Boards.  Added STM3240G-EVAL DHPCD and nettest configuration.
+      Support for a new STM32 board, the HY-Mini STM32v board, was
+      contributed by Laurent Latil
+    * PIC32.  The port to the Microchip PIC32MX is finally functional and
+      reliable.  The NuttX PIC32 port has verified configurations for
+      the OS test and the NuttShell (NSH) both exist.
+    * Tests:  New re-usable tests (in apps/examples) for PWM, ADC, and
+      CAN loopback.  Several existing tests can now be built as NSH built-in
+      applicaitons (dhcpd, nettest, and all of the new tests).
+
+Bugfixes, order roughly on decreasing criticality include:
+
+    * STM32:  Correct handling of data overrun conditions.  Existing logic
+      would hang with infinite interrupts when a data overrun occurred.
+    * DHCPD.  Fix several problems using host order address where network
+      addresses expected (and vice versa).
+
+And several others.  See the ChangeLog for more details.
+
+NuttX-6.14
+^^^^^^^^^^
+
+The 81st release of NuttX, Version 6.14, was made on January 15, 2012,
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.14.tar.gz and
+apps-6.14.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).
+
+This release corresponds with SVN release number: r4301
+
+New features in this release include:
+
+    * Drivers. The upper-half PWM driver will now support a pulse count (as
+      would be needed to control a stepper motor).
+
+    * STM32.  The CAN driver has been verified in loopback mode.  ADC driver
+      support for the STM32 F4.  Add support for UART4-5 and USART6
+      (Contributed by Mike Smith).  The PWM driver now supports a pulse
+      count for TIM1 and TIM8.  Timer driver now supports the F4's 32-bit
+      timers (Contributed by Mikhail Bychek)
+
+    * STM32F4Discovery.  Support for the STM32F4-Discovery board contributed
+      by Mike Smith.
+
+    * STM3240G-EVAL.  Add support for user control of LEDs.
+
+    * LPC17xx.  Add support for loopback mode to CAN driver.  CAN TX done 
+      perations are now interrupt driver.  Now supports configurable CAN bit
+      rate.
+
+    * LPC1766-STK. Add support for on-board buttons. Add support for user
+      control of LEDs.
+
+    * LM3S.  Add support for the LM3S6432S2E on the TI RDK-S2E (Contributed
+      by Mike Smith)
+
+    * PIC32MX.  USB device-side driver (needs further testing).  A partial
+      Ethernet driver is also in place.
+
+    * Library. Support added for fixed floating point fieldwidths in output
+      formatting (Contributed by Mikhail Bychek)
+
+    * Build.  New targets apps_clean and apps_distclean to simplify working
+      with application diretories.
+
+Bugfixes include:
+
+    * Drivers.  Fixed a buffer-full test in the upper-half CAN driver.
+
+    * STM32.  GPIO initialize logic (submitted by Mike Smith).  Fix the
+      debug logic that dumps the GPIO configuration.
+
+    * LPC17xxx.  Correct an integeter overlow in GPIO interrupt setup
+      (prevented pins > 15 from being used as interrupt sources).  Correct
+      a value used in GPIO interrupt number range test.
+
+    * FAT.  Now returns the correct error value when it is unable to
+      recognize the file system.
+
+    * Build.  MAC OS build fixes (submitted by Mike Smith)
+
+And several others.  See the ChangeLog for more details.
+
+NuttX-6.15
+^^^^^^^^^^
+
+The 82nd release of NuttX, Version 6.15, was made on February 12, 2012,
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.15.tar.gz and
+apps-6.15.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).
+
+This release corresponds with SVN release number: r4387
+
+New features and extended functionality:
+
+    * General Drivers:  Add support for (29-bit) extended CAN IDs.  Add an
+      infrastructure to support battery drivers.   Add a driver for MAX17040x
+      battery "fuel gauge".  Add support for Composite USB drivers (in
+      particular for a CDC/ACM with MSC USB composite driver).
+
+      Added a new RAM logging driver.  This will allow debug output into
+      a RAM buffer associated with a character driver at /dev/syslog.
+      Added the new command 'dmesg' to NSH that can be used to dump the
+      current contents of the log.  This is useful for systems that do not
+      have the usual serial console (for example, if you only have a
+      Telnet console with NSH).
+
+    * Networking:  Add a lower level, primitive socket interface.  Telnet
+      driver:
+
+      A New Telnet daemon was created.  It wraps a Telnet session within a
+      character driver that can serve as a "controlling terminal."  The
+      Telnet session will then be inherited by tasks created from the
+      Telnet session and the stdin/stdout from the created task will
+      still go through the same Telnet connection.
+
+    * STM32 Drivers.  PWM driver pulse count was limited to 128; now is
+      (essentially) unlimited.  Add support for (29-bit) extended CAN IDs.
+      Add support for I2C3.  The SDIO driver is (mostly) verified on the
+      STM32 F4 platforms.
+
+    * LPC17xx Drivers.  Extended the CAN driver so that the TSEG1 and TSEG2
+      bit times can be set via the NuttX configuration.  Add support for
+      (29-bit) extended CAN IDs.
+
+    * PIC32 Drivers. The PIC32 Ethernet driver is code complete (but still
+      untested).
+
+    * FTPD.  Add a new FTP server daemon.  This is based loosely on 
+      the hwport_ftpd library provided by Jaehyuk Cho.
+
+    * Library:  Add support for on_exit().  Implemented tcsetattr() and
+      tcgetattr().  Moved the old, too-smart fgets() to a new application
+      library function called readline().  Dumbed down the original fgets().
+      Add strcasestr(), avsprintf(), inet_ntop(), and inet_pton().
+      Add support to enable or disable debug output.
+
+    * Build system: Support for building a 32-bit simulation executable on
+      a 64-bit Linux machine.  Correct a dependency issue in the arch/*/src/board
+      directory.
+
+Bugfixes:
+
+    * System:  Correct PTHREAD_MUTEX_INITIALIZER
+
+    * FAT: Fix an error in the FAT statfs() reported by David Sidrane.
+
+    * STM32: Fix clock frequencies for APB2 timers.  Correct AFIO register
+      offset.
+
+    * PIC32.  Correct GPIOs used for LEDs on the Sure PIC32MX board.
+
+    * NSH.  Wait for a USB connection if a USB serial class is used to
+      interface with the host.
+
+Additional bugfixes, name changes, and other differences as detailed in the
+ChangeLog.
+
+NuttX-6.16
+^^^^^^^^^^
+
+The 83rd release of NuttX, Version 6.16, was made on March 10, 2012,
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.16.tar.gz and
+apps-6.16.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).
+
+This release corresponds with SVN release number: r4475
+
+New features and extended functionality:
+
+    * ARMv7M Support:  Includes new, streamlined Cortex-M exception
+      handling provided by Mike Smith.  Context switching support for the
+      Cortex-M4 FPU registers is now provided (in both "lazy" and "non-lazy"
+      modes)
+
+    * General Drivers: Added a generic "upper half" Quadrature Encoder driver.
+      The USB CDC/ACM serial driver can now be dynamically connnected or
+      disconnected from the host (programmatically or using NSH commands).
+
+    * STM32 Drivers: Added a "lower half" Quadrature Encoder driver.
+      Verified the STM32 F4 DMA driver; Added F4 DMA support to the existing
+      STM32 SDIO driver.
+
+    * STM32 Board Support.  Added support for the STM32 F2 family and
+      for the STM3220G-EVAL board (contributed by Gary Teravskis).
+      Support is now included for C++ static constructors (verified using
+      the Atollic toolchain). Added support for the SRAM available on the
+      STM3240G-EVAL board.
+
+    * PIC32 Drivers.  PIC32MX USB (device) driver is now functional.
+      The PIC32MX Ethernet driver not yet fully verified (and an
+      unverified SPI driver is also available).
+
+    * Networking.  Added a lower-level, thread-independent socket layer.
+      Parts of this layer were created in 6.15 to support the FTPD
+      controlling terminal; this support has been extended in order
+      to support an NFS file system (not yet released).
+
+    * NuttShell (NSH).  NSH will now support a USB serial connection for
+      the console (such as CDC/ACM).  This is useful in environments
+      where there is no physical serial port on the board.
+
+    * Build System.  Reorgnaization of networking header files.
+
+Critical Bugfixes.  The following bug fixes are considered critical:
+
+    * Networking:  Fixed a "leak" in the TCP/IP read-ahead buffering logic.
+      Corrected an error in TCP/IP sequence numbering/ACK logic which
+      occurred when read-ahead buffering memory is exhausted.
+
+    * STM32 Drivers: Fixed an buffer sizing error in the STM32 Ethernet
+      driver.
+
+Additional Bugfixes:  Other important bug fixes are listed below. See
+the ChangeLog of a complete, detailed list of bug fixes.
+
+    * Networking: Corrected recv()/recvfrom() return value.  Added logic to
+      monitor for loss of connection after a new connection has been
+      established via accept() (Contributed by Max Nekludov).  Add
+      logic to select() to correctly handle POLLHUP (Contributed by Max
+      Nekludov)
+
+Additional bugfixes, name changes, and other differences as detailed in the
+ChangeLog.
+
+NuttX-6.17
+^^^^^^^^^^
+
+The 84th release of NuttX, Version 6.17, was made on April 14, 2012,
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.17.tar.gz and
+apps-6.17.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).
+
+This release corresponds with SVN release number: r4607
+
+New features and extended functionality:
+
+    * Networking:  Additional low-level, thread-independent socket
+      interfaces (for NFS client support).
+
+    * RTC:  Added a new interface call clock_synchronize().  This function
+      will reload the system time from an RTC and is required when the
+      system re-awakens from certain deep-sleep modes.
+
+    * Graphics:  Add NxConsole.  This is a character device driver that
+      wraps an NX window and can be re-directed for stdout.  This allows,
+      for example, a pop-up graphics window that contains a NuttShell (NSH)
+      session.  A test of NxConsole is available at apps/examples/nxconsole.
+
+    * Watchdog Drivers:  Added an interface definition an "upper half"
+      driver to support watchdog timers.
+
+    * Calypso:  Support for TI Calypso-based cellphones (as supported by
+      the Osmocom-BB project) was contributed by members of the Osmocom-BB
+      team.  This includes configurations for the Compal e88 and e99 phones.
+
+    * USB Device Interface:  Needed to extend the USB device interface
+      because there was no mechanism for passing endpoint OUT data that
+      may need to accompany a setup request.
+
+    * STM32 drivers:  Added some power management controls for entering
+      reduced power consumption states.  An OTG FS driver was completed
+      and partially verified (this driver seems to be functional but since
+      it has been test so lightly, it might better be listed in the
+      next section "Work in progress").
+
+    * PIC32 drivers: The PIC32 Ethernet driver is now stable.  The PIC32
+      USB device controller driver is now functional (but not yet stable).
+
+    * PIC32 boards: Added support for the Sure DB-DP11212 PIC32 General
+      Purpose Demo Board.  There is now a PIC32 Starter Kit that
+      provides NSH only through a Telnet connection.
+
+    * Build System:  Some header files were moved into include/nuttx.
+      The goal is to move any non-standard header files to include/nuttx
+      or include/arch.  Moved include/math.h to include/nuttx/math.h;
+      this file is now only instantiated as the 'system' math.h if
+      CONFIG_ARCH_MATH_H=y is defined.
+
+    * Tools:  Added tools/cmpconfig.c, a tool for comparing two
+      configuration files.
+
+Work in progress.  This release includes some partially completed
+work that is still not ready for prime time.
+
+    * NFS Client:  Work is progressing on support for an NFS client
+      file system.    This is a port of the BSD NFS client file system
+      that is being done by Jose Pablo Rojas V.
+
+    * Automated Configuration:  Automated configuration based on the
+      kconfig-frontends tool is being incorporated into the build
+      system.  The configuration is still not complete enough for
+      general use in this release.
+
+    * STM32 Drivers:  Added files that will (eventually) hold an STM32
+      OTG FS host driver.  This is still a work in progress.
+
+Bugfixes:
+
+    * Networking:  Corrected a deadlock that only occurred when
+      executing the NSH 'ifconfig' command over Telnet.
+
+    * File system:  Fix incorrect return errno value from read() when
+      the file is opened write-only.
+
+    * Graphics:   Fix several compilation errors that have crept into the
+      multi-user NX server because of lack of use.
+
+    * STM32:  In order to use CAN2, both CAN1 and CAN2 clocking must be
+      enabled. Fixed a troublesome bug in the STM32 F4 I2C driver that
+      resulting in timeouts.
+
+    * LPC17xx: Fixes for errors the crept in the LPC17xx DAC logic
+      Contributed by Lzyy).
+
+    * Build System:  Reordered the link command line to account for new
+      versions of libgcc.a that require symbols from the application
+      (abort()).
+
+NuttX-6.18
+^^^^^^^^^^
+
+The 85th release of NuttX, Version 6.18, was made on May 19, 2012,
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.18.tar.gz and
+apps-6.18.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).
+
+The majority of changes in this release are focused on supporting the
+synchronized release of NxWM, the NuttX tiny window manager.  That
+window manager is released as part of the NxWidgets package, but depends
+upon many of the changes in this NuttX release.
+
+This release corresponds with SVN release number: r4751
+
+New features and extended functionality:
+
+    * Drivers.  Added a watchdog timer driver infrastructure.  Add general
+      support for STMicro STMPE811 I/O Expander/touchscreen device.
+
+    * STM32. Add support for the STM32 IWDG and WWDG watchodog timers.  DMA
+      now supports cicular buffer mode; serial driver now uses circular
+      DMA to improve Rx performance (Contributed by Mike Smith).
+
+    * STM3240G-EVAL Board.  Add support for the LCD and for the STMPE811
+      I/O Expander as a touchscreen controller.
+
+    * PIC32 Boards.  Board support for the Mikroelektronika PIC32MX7
+      Multimedia Board (MMB) and for the Sparkfun UBW32 PIC32 board.
+
+    * NX. Framed windows are now draw in three colors instead of just two.
+      Numerous other extensions needed to support NxWM (see the ChangeLog
+      for details).
+
+    * Library. Add prctl() command that can be used to setting and getting
+      the names of threads.  This (plus several other improvements and bug
+      fixes) are part of a larger effort to improve task monitoring
+      capabilities.
+
+Work in progress.  This release includes some partially completed
+work that is still not ready for prime time.
+
+    * NFS Client. Work is progressing on support for an NFS client
+      file system.   This is a port of the BSD NFS client file system
+      that is being done by Jose Pablo Rojas V.
+
+    * Automated Configuration. Automated configuration based on the
+      kconfig-frontends tool is being incorporated into the build
+      system.  The configuration is still not complete enough for
+      general use in this release.
+
+    * STM32 Drivers. Added files that will (eventually) hold an STM32
+      OTG FS host driver.  This is still a work in progress.
+
+Bugfixes (see the change log for details) :
+
+    * sched_setscheduler() return value (Contributed by Richard Cochran).
+
+    * stdio. Ignore CONFIG_STDIO_LINEBUFFER if the file was opened in binary mode.
+
+    * fopen(). Correct an error in parsing open mode string.
+
+    * serial driver. Improved performance be reducing the amount of time
+      that Rx interrupts are disabled.
+
+    * recvfrom(). Fix a compilation problem.
+
+    * CDC/ACM device driver. Fix an infinite loop that occurs when the serial
+      device is unregistered.
+
+    * STM32 OTG FS device driver. Numerous fixes and the driver is partially
+      functional but there are still some issues that become apparent when
+      debug output is disabled.
+
+    * fcntl(). Always returned zero on success; however, some fcntl commands
+      need to return non-zero values on success.
+
+    * graphics:  Many multi-use mode fixes added to support NxWM (see the
+      ChangeLog for details).  Auto-raise is temporarily disabled in multi-
+      user mode because it causes some problems with NxWM.
+
+    * on_exit():  Fix compilation errors if CONFIG_SCHED_ONEXIT is enabled.
+
+NuttX-6.19
+^^^^^^^^^^
+
+The 86th release of NuttX, Version 6.19, was made on June 15, 2012,
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.19.tar.gz and
+apps-6.19.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).
+
+This release corresponds with SVN release number: r4847
+
+This release features new support for a Network File System (NFS) client.
+This feature allows a tiny, embedded MCU to mount a remote file system
+exported by an NFS server and then to access the file system as it would
+any local file system.  Then the tiny MCU can effectively have terabytes
+of storage!
+
+This might be useful for data collection, for MCU configuration information,
+for software updates, for providing modular, loadable code modes, controlling
+a "farm" of MCUs, ... there are many possibilities and opportunities for
+innovation!
+
+The NuttShell (NSH) now supports the following command:
+
+  nfsmount <server-address> <mount-point> <remote-path>
+
+That command will mount the remote NFS server directory <remote-path> at
+<mount-point> on the target machine.  <server-address> is the IP address of
+the remote server.
+
+The NFS development was the graduation project of Jose Pablo Rojas V. who
+is a student at the Instituto Tecnológico de Costa Rica (ITCR, or TEC).
+A lot of effort went into understanding what a tiny, embedded NFS client should
+do and getting the target resource usage to a bare minimum.  Only around a
+kilobyte or so of memory is required to run the NFS client (and most of that
+for I/O buffers).  Jose Pablo has spent several months living with NFS and
+should be congratulated.
+
+Additional new features and extended functionality:
+
+    * Drivers:  SSD1289 LCD driver, MIO283QT2 LCD driver
+
+    * LM3S: Additional register definition header files (contributed by Max
+      Neklyudov).
+
+    * STM32 Boards:  The STM32F4Discovery will now support an SSD1289 LCD,
+      The STM3220G-EVAL board support is now equivalent to the STM3240G-EVAL
+      board support.
+
+    * PIC32 Boards: The Mikroelektronika PIC32MX7 MMB board port is now
+      functional, very complete, and stable.
+
+    * Graphics:  The NxConsole will now take keyboard input from the NX graphics
+      subsystem.  This means that if there are multiple NxConsole windows, only
+      the top instance that has focus will receive the keyboard input.
+
+    * apps/:  Add the capability to use an arbitrary USB device as the console
+      (not necessarily /dev/console).  Additional enhancements for USB consoles.
+      Added the 'mv' command.
+
+Work in progress.  This release includes some partially completed
+work that is still not ready for prime time.
+
+    * Automated Configuration. Automated configuration based on the
+      kconfig-frontends tool is being incorporated into the build
+      system.  The configuration is still not complete enough for
+      general use in this release.
+
+    * STM32 Drivers. Added files that will (eventually) hold an STM32
+      OTG FS host driver.  This is still a work in progress.
+
+Bugfixes (see the change log for details) :
+
+    * General:  sleep() and usleep() return values, sig_timedwait() errno setting
+      on timeout.
+    * Drivers: STMPE811 touchscreen driver, USB PLC2303, USB CDC/ACM
+    * STM32: Several USB device controller driver fixes, F4 interrrupt priorities
+      (contributed by Mike Smith).
+    * Graphics: Keyboard input, fill trapezoid bug
+
+As well as other, less critical bugs (see the ChangeLog for details)
+
+NuttX-6.20
+^^^^^^^^^^
+
+The 87th release of NuttX, Version 6.20, was made on July 12, 2012,
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.20.tar.gz and
+apps-6.20.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).
+
+This release corresponds with SVN release number: r4937
+
+Additional new features and extended functionality:
+
+    * Power Management:  An evolving power management example is being
+      created by Diego Sanchez.  This effort currently involves on the 
+      STM32 F1 but clearly demonstrates the NuttX power management
+      system which will automatically drive the system to lower power
+      usage states due to lack of use.
+
+    * Drivers:  Added a driver for the SST 25 SPI-based FLASH parts.
+
+    * PIC32:  Added support for the PIC32MX1 and PIC32MX2 families.
+      Added support for the microchipOpen and Pinguino toolchains.
+
+    * NXP LPC43XX: Added support for the entire LPC43xx family
+
+    * PIC32 boards:  Added support for the DTX1-4000L "Mirtoo" module
+      from http://www.dimitech.com/ (PIC32MX2).
+
+    * NXP LPC43XX Boards: Added support for NGX LPC4330-Xplorer board.
+
+    * NXP LPC17XX Boards: Added support for Micromint Lincoln60 board
+      (LPC1769).
+
+    * LM3S Boards:  Add a configuration to support the TI/Stellaris
+      EKK-LM3S3B96 development board.  Contributed by Jose Pablo Rojas V.
+
+    * Library:  NuttX now supports platform-specific stdarg.h header
+      files.
+
+Work in progress.  This release includes some partially completed
+work that is still not ready for prime time.
+
+    * Automated Configuration. Automated configuration based on the
+      kconfig-frontends tool is being incorporated into the build
+      system.  The configuration is still not complete enough for
+      general use in this release.
+
+    * STM32 Drivers. Added files that will (eventually) hold an STM32
+      OTG FS host driver.  This is still a work in progress.
+
+Bugfixes (see the change log for details) :
+
+    * PIC32: GPIO output configuration (critical bug)
+    * STM32: Typos in pin mapping files.
+    * LM3S:  Fixed an optimization related but that caused slow start-up
+      times if optimization was disabled.
+    * Library:  Fixed signed extension but in all limit.h files
+      (reported by Lorenz Meier).  inet_ntoa compilation failure
+      on Z80.
+
+As well as other, less critical bugs (see the ChangeLog for details)
+
+NuttX-6.21
+^^^^^^^^^^
+
+The 88th release of NuttX, Version 6.21, was made on August 25, 2012,
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.21.tar.gz and
+apps-6.21.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).
+
+This release corresponds with SVN release number: r5052
+
+Additional new features and extended functionality:
+
+    * Core: Add support for multiple registered atexit() functions.  Syslog
+      extended:  Now any character driver may be used for the debug logging
+      device.  Mountpoint traversal logic.
+    * Drivers: Added support for the TI PGA112-7 amplifier/multiplexor.
+    * LPC43xx:  Added clock ramp-up logic to run at 204 MHz
+    * LPC43xx Drivers:  SPIFI block driver, RS-485 support, Minimal termios
+      support.  Framework for USB0 device controller driver.
+    * LPC17xx Drivers:  Minimal termios support
+    * STM32: Support for STM32 F1 "Value Line" (contributed by Mike Smith).
+      Add support for STM32 F107 "Connectivity Line" (contributed by Max
+      Holtzberg).
+      Clock restart logic needed for recovery from low power modes.
+    * STM32 Drivers:  RTC alarm support.  Usable for wakeup from sleep mode,
+      Minimal serial termios support.  USB OTG FS host driver (alpha).
+    * STM32 Boards: Add power management hooks for the STM32F4Discovery,
+      Add support for the Olimex STM32-P107 (contributed by Max Holtzberg).
+    * PIC32:  Add support for the Pinguino MIPS toolchain.
+    * PIC32 Drivers:  GPIO driver now supports F1 analog regiaters (ANSEL).
+    * PIC32 Boards: Add support for the PGA117 on the Mirtoo module.
+    * Calypso:  Add support for the SSD1783 LCD on the Compal E99.
+    * Library:  cfsetispeed(), cfsetospeed(), tcflush(), memchr(), and
+      memccpy().
+    * Applications:  Port of freemodbus-v1.5.0. Add support for testing
+      devices with multiple ADC, PWM, and QE devices.  
+      NSH: NSH 'mount' command (with no arguments) will now show mounted
+      volumes.  Add new NSH 'df' command.  Extended 'help' support. NSH
+      now catches the return value from spawned applications (provided
+      by Mike Smith).
+    * Build System: mkconfig will not define CONFIG_DRAM_END.  A lot of 
+      progress has been made on the automated NuttX configuration logic
+      (Thanks go to Richard Cochran).
+    * Documentation: Document ways to customize the behavior of NSH.
+
+Bugfixes (see the change log for details) :
+
+    * Serial drivers (all): Fix ioctl return value. Common "upper half"
+      serial driver will now return with EINTR if a serial wait is
+      interrupted by a signal.
+    * FAT: Fix statfs() file name length.
+    * LPC43xx: Clock configuration.
+    * STM32: Pinmap fixes, SPI driver re-initialization
+    * STM32 Boards: Correct and lower SDIO frequency for F2 and f4 boards.
+    * AVR: C++ build issues.
+    * PM: Fix a place where interrupts were not be re-enabled.
+    * Applications: NSH application start-up race conditions.
+    * Library: Fieldwidth and justification for %s format.  Fixed several
+      issues with presenting floating point numbers.  NULL definition
+      for C++
+
+As well as other, less critical bugs (see the ChangeLog for details)