From cc607538206e0d7b81b8d3d3583e2cd96b07a4d2 Mon Sep 17 00:00:00 2001 From: Feng Xiao Date: Wed, 26 Aug 2015 16:31:30 -0700 Subject: Update change log for beta-1. --- CHANGES.txt | 106 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 106 insertions(+) (limited to 'CHANGES.txt') diff --git a/CHANGES.txt b/CHANGES.txt index 846d735e..ca3078c3 100644 --- a/CHANGES.txt +++ b/CHANGES.txt @@ -1,3 +1,109 @@ +2015-08-26 version 3.0.0-beta-1 (C++/Java/Python/Ruby/Nano/Objective-C/C#) + About Beta + * This is the first beta release of protobuf v3.0.0. Not all languages + have reached beta stage. Languages not marked as beta are still in + alpha (i.e., be prepared for API breaking changes). + + General + * Proto3 JSON is supported in several languages (fully supported in C++ + and Java, partially supported in Ruby/C#). The JSON spec is defined in + the proto3 language guide: + + https://developers.google.com/protocol-buffers/docs/proto3#json + + We will publish a more detailed spec to define the exact behavior of + proto3-conformant JSON serializers and parsers. Until then, do not rely + on specific behaviors of the implementation if it’s not documented in + the above spec. More specifically, the behavior is not yet finalized for + the following: + - Parsing invalid JSON input (e.g., input with trailing commas). + - Non-camelCase names in JSON input. + - The same field appears multiple times in JSON input. + - JSON arrays contain “null” values. + - The message has unknown fields. + + * Proto3 now enforces strict UTF-8 checking. Parsing will fail if a string + field contains non UTF-8 data. + + C++ (Beta) + * Introduced new utility functions/classes in the google/protobuf/util + directory: + - MessageDifferencer: compare two proto messages and report their + differences. + - JsonUtil: support converting protobuf binary format to/from JSON. + - TimeUtil: utility functions to work with well-known types Timestamp + and Duration. + - FieldMaskUtil: utility functions to work with FieldMask. + + * Performance optimization of arena construction and destruction. + * Bug fixes for arena and maps support. + * Changed to use cmake for Windows Visual Studio builds. + * Added Bazel support. + + Java (Beta) + * Introduced a new util package that will be distributed as a separate + artifact in maven. It contains: + - JsonFormat: convert proto messages to/from JSON. + - TimeUtil: utility functions to work with Timestamp and Duration. + - FieldMaskUtil: utility functions to work with FieldMask. + + * The static PARSER in each generated message is deprecated, and it will + be removed in a future release. A static parser() getter is generated + for each message type instead. + * Performance optimizations for String fields serialization. + * Performance optimizations for Lite runtime on Android: + - Reduced allocations + - Reduced method overhead after ProGuarding + - Reduced code size after ProGuarding + + Python (Alpha) + * Removed legacy Python 2.5 support. + * Moved to a single Python 2.x/3.x-compatible codebase, instead of using 2to3. + * Fixed build/tests on Python 2.6, 2.7, 3.3, and 3.4. + - Pure-Python works on all four. + - Python/C++ implementation works on all but 3.4, due to changes in the + Python/C++ API in 3.4. + * Some preliminary work has been done to allow for multiple DescriptorPools + with Python/C++. + + Ruby (Alpha) + * Many bugfixes: + - fixed parsing/serialization of bytes, sint, sfixed types + - other parser bugfixes + - fixed memory leak affecting Ruby 2.2 + + JavaNano (Alpha) + * JavaNano generated code now will be put in a nano package by default to + avoid conflicts with Java generated code. + + Objective-C (Alpha) + * Added non-null markup to ObjC library. Requires SDK 8.4+ to build. + * Many bugfixes: + - Removed the class/enum filter. + - Renamed some internal types to avoid conflicts with the well-known types + protos. + - Added missing support for parsing repeated primitive fields in packed or + unpacked forms. + - Added *Count for repeated and map<> fields to avoid auto-create when + checking for them being set. + + C# (Alpha) + * Namespace changed to Google.Protobuf (and NuGet package will be named + correspondingly). + * Target platforms now .NET 4.5 and selected portable subsets only. + * Removed lite runtime. + * Reimplementation to use mutable message types. + * Null references used to represent "no value" for message type fields. + * Proto3 semantics supported; proto2 files are prohibited for C# codegen. + Most proto3 features supported: + - JSON formatting (a.k.a. serialization to JSON), including well-known + types (except for Any). + - Wrapper types mapped to nullable value types (or string/ByteString + allowing nullability). JSON parsing is not supported yet. + - maps + - oneof + - enum unknown value preservation + 2015-05-25 version 3.0.0-alpha-3 (Objective-C/C#): General * Introduced two new language implementations (Objective-C, C#) to proto3. -- cgit v1.2.3