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Add changelog for 3.9.x #6319

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Add changelog for 3.9.x #6319

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53 changes: 53 additions & 0 deletions CHANGES.txt
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Original file line number Diff line number Diff line change
@@ -1,3 +1,56 @@
2019-06-28 version 3.9.0 (C++/Java/Python/PHP/Objective-C/C#/Ruby/JavaScript)

C++
* Optimize and simplify implementation of RepeatedPtrFieldBase
* Don't create unnecessary unknown field sets.
* Remove branch from accessors to repeated field element array.
* Added delimited parse and serialize util.
* Reduce size by not emitting constants for fieldnumbers
* Fix a bug when comparing finite and infinite field values with explicit tolerances.
* TextFormat::Parser should use a custom Finder to look up extensions by number if one is provided.
* Add MessageLite::Utf8DebugString() to make MessageLite more compatible with Message.
* Fail fast for better performance in DescriptorPool::FindExtensionByNumber() if descriptor has no defined extensions.
* Adding the file name to help debug colliding extensions
* Added FieldDescriptor::PrintableNameForExtension() and DescriptorPool::FindExtensionByPrintableName().
The latter will replace Reflection::FindKnownExtensionByName().
* Replace NULL with nullptr
* Created a new Add method in repeated field that allows adding a range of elements all at once.
* Enabled enum name-to-value mapping functions for C++ lite
* Avoid dynamic initialization in descriptor.proto generated code
* Move stream functions to MessageLite from Message.
* Move all zero_copy_stream functionality to io_lite.
* Do not create array of matched fields for simple repeated fields
* Enabling silent mode by default to reduce make compilation noise. (#6237)

Java
* Expose TextFormat.Printer and make it configurable. Deprecate the static methods.
* Library for constructing google.protobuf.Struct and google.protobuf.Value
* Make OneofDescriptor extend GenericDescriptor.
* Expose streamingness of service methods from MethodDescriptor.
* Fix a bug where TextFormat fails to parse Any filed with > 1 embedded message sub-fields.
* Establish consistent JsonFormat behavior for nulls in oneofs, regardless of order.
* Update GSON version to 3.8.5. (#6268)
* Add `protobuf_java_lite` Bazel target. (#6177)

Python
* Change implementation of Name() for enums that allow aliases in proto2 in Python
to be in line with claims in C++ implementation (to return first value).
* Explicitly say what field cannot be set when the new value fails a type check.
* Duplicate register in descriptor pool will raise errors
* Add __slots__ to all well_known_types classes, custom attributes are not allowed anymore.
* text_format only present 8 valid digits for float fields by default

JavaScript
* Add Oneof enum to the list of goog.provide

PHP
* Make php message class final to avoid mocking. (#6277)
* Rename get/setXXXValue to get/setXXXWrapper. (#6295)

Ruby
* Remove to_hash methods. (#6166)


2019-04-29 version 3.8.0 (C++/Java/Python/PHP/Objective-C/C#/Ruby/JavaScript)

C++
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