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@@ -1,3 +1,111 @@
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+2017-04-05 version 3.3.0 (C++/Java/Python/PHP/Objective-C/C#/Ruby/JavaScript)
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+ Planned Future Changes
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+ * There are some changes that are not included in this release but are
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+ planned for the near future:
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+ - Preserve unknown fields in proto3: please read this doc:
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+
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+ https://docs.google.com/document/d/1KMRX-G91Aa-Y2FkEaHeeviLRRNblgIahbsk4wA14gRk/view
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+
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+ for the timeline and follow up this github issue:
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+
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+ https://github.com/google/protobuf/issues/272
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+
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+ for discussion.
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+ - Make C++ implementation C++11 only: we plan to require C++11 to build
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+ protobuf code starting from 3.4.0 or 3.5.0 release. Please join this
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+ github issue:
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+
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+ https://github.com/google/protobuf/issues/2780
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+
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+ to provide your feedback.
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+
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+ C++
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+ * Fixed map fields serialization of DynamicMessage to correctly serialize
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+ both key and value regardless of their presence.
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+ * Parser now rejects field number 0 correctly.
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+ * New API Message::SpaceUsedLong() that’s equivalent to
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+ Message::SpaceUsed() but returns the value in size_t.
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+ * JSON support
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+ - New flag always_print_enums_as_ints in JsonPrintOptions.
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+ - New flag preserve_proto_field_names in JsonPrintOptions. It will instruct
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+ the JSON printer to use the original field name declared in the .proto
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+ file instead of converting them to lowerCamelCase when printing JSON.
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+ - JsonPrintOptions.always_print_primtive_fields now works for oneof message
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+ fields.
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+ - Fixed a bug that doesn’t allow different fields to set the same json_name
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+ value.
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+ - Fixed a performance bug that causes excessive memory copy when printing
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+ large messages.
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+ * Various performance optimizations.
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+
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+ Java
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+ * Map field setters eagerly validate inputs and throw NullPointerExceptions
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+ as appropriate.
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+ * Added ByteBuffer overloads to the generated parsing methods and the Parser
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+ interface.
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+ * proto3 enum's getNumber() method now throws on UNRECOGNIZED values.
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+ * Output of JsonFormat is now locale independent.
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+
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+ Python
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+ * Added FindServiceByName() in the pure-Python DescriptorPool. This works only
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+ for descriptors added with DescriptorPool.Add(). Generated descriptor_pool
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+ does not support this yet.
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+ * Added a descriptor_pool parameter for parsing Any in text_format.Parse().
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+ * descriptor_pool.FindFileContainingSymbol() now is able to find nested
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+ extensions.
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+ * Extending empty [] to repeated field now sets parent message presence.
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+
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+ PHP
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+ * Added file option php_class_prefix. The prefix will be prepended to all
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+ generated classes defined in the file.
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+ * When encoding, negative int32 values are sign-extended to int64.
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+ * Repeated/Map field setter accepts a regular PHP array. Type checking is
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+ done on the array elements.
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+ * encode/decode are renamed to serializeToString/mergeFromString.
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+ * Added mergeFrom, clear method on Message.
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+ * Fixed a bug that oneof accessor didn’t return the field name that is
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+ actually set.
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+ * C extension now works with php7.
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+ * This is the first GA release of PHP. We guarantee that old generated code
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+ can always work with new runtime and new generated code.
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+
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+ Objective-C
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+ * Fixed help for GPBTimestamp for dates before the epoch that contain
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+ fractional seconds.
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+ * Added GPBMessageDropUnknownFieldsRecursively() to remove unknowns from a
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+ message and any sub messages.
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+ * Addressed a threading race in extension registration/lookup.
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+ * Increased the max message parsing depth to 100 to match the other languages.
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+ * Removed some use of dispatch_once in favor of atomic compare/set since it
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+ needs to be heap based.
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+ * Fixes for new Xcode 8.3 warnings.
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+
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+ C#
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+ * Fixed MapField.Values.CopyTo, which would throw an exception unnecessarily
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+ if provided exactly the right size of array to copy to.
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+ * Fixed enum JSON formatting when multiple names mapped to the same numeric
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+ value.
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+ * Added JSON formatting option to format enums as integers.
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+ * Modified RepeatedField<T> to implement IReadOnlyList<T>.
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+ * Introduced the start of custom option handling; it's not as pleasant as it
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+ might be, but the information is at least present. We expect to extend code
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+ generation to improve this in the future.
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+ * Introduced ByteString.FromStream and ByteString.FromStreamAsync to
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+ efficiently create a ByteString from a stream.
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+ * Added whole-message deprecation, which decorates the class with [Obsolete].
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+
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+ Ruby
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+ * Fixed Message#to_h for messages with map fields.
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+ * Fixed memcpy() in binary gems to work for old glibc, without breaking the
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+ build for non-glibc libc’s like musl.
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+
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+ Javascript
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+ * Added compatibility tests for version 3.0.0.
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+ * Added conformance tests.
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+ * Fixed serialization of extensions: we need to emit a value even if it is
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+ falsy (like the number 0).
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+ * Use closurebuilder.py in favor of calcdeps.py for compiling JavaScript.
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+
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2017-01-23 version 3.2.0 (C++/Java/Python/PHP/Ruby/Objective-C/C#/JavaScript/Lite)
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General
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* Added protoc version number to protoc plugin protocol. It can be used by
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Feng Xiao