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protobuf v3.7.0 Release Notes

Release Date: 2019-02-28 // about 5 years ago

  • C++

    • 📜 Introduced new MOMI (maybe-outside-memory-interval) parser.
    • 📜 Add an option to json_util to parse enum as case-insensitive. In the future, enum parsing in json_util will become case-sensitive.
    • ➕ Added conformance test for enum aliases
    • ➕ Added support for --cpp_out=speed:...
    • ➕ Added use of C++ override keyword where appropriate
    • 🛠 Many other cleanups and fixes.

    Java

    • 🛠 Fix illegal reflective access warning in JDK 9+
    • ➕ Add BOM

    Python

    • ➕ Added Python 3.7 compatibility.
    • 📜 Modified ParseFromString to return bytes parsed .
    • Introduce Proto C API.
    • FindFileContainingSymbol in descriptor pool is now able to find field and enum values.
    • 🗄 reflection.MakeClass() and reflection.ParseMessage() are deprecated.
    • ➕ Added DescriptorPool.FindMethodByName() method in pure python (c extension alreay has it)
    • 0️⃣ Flipped proto3 to preserve unknown fields by default.
    • ➕ Added support for memoryview in python3 proto message parsing.
    • ➕ Added MergeFrom for repeated scalar fields in c extension (pure python already has it)
    • Surrogates are now rejected at setters in python3.
    • ➕ Added public unknown field API.
    • RecursionLimit is also set to max if allow_oversize_protos is enabled.
    • 📜 Disallow duplicate scalars in proto3 text_format parse.
    • 🛠 Fix some segment faults for c extension map field.

    PHP

    • Most issues for json encoding/decoding in the c extension have been fixed. There are still some edge cases not fixed. For more details, check conformance/failure_list_php_c.txt.
    • 👌 Supports php 7.3
    • ➕ Added helper methods to convert between enum values and names.
    • 👍 Allow setting/getting wrapper message fields using primitive values.
    • 🛠 Various bug fixes.

    💎 Ruby

    • 💎 Ruby 2.6 support.
    • ⬇️ Drops support for ruby < 2.3.
    • Most issues for json encoding/decoding in the c extension have been fixed. There are still some edge cases not fixed. For more details, check conformance/failure_list_ruby.txt.
    • Json parsing can specify an option to ignore unknown fields: msg.decode_json(data, {ignore_unknown_fields: true}).
    • ➕ Added support for proto2 syntax (partially).
    • 🛠 Various bug fixes.

    C

    • 🔀 More support for FieldMask include merge, intersect and more.
    • 0️⃣ Increasing the default recursion limit to 100.
    • 👌 Support loading FileDescriptors dynamically.
    • Provide access to comments from descriptors.
    • ➕ Added Any.Is method.
    • Compatible with C# 6
    • ➕ Added IComparable and comparison operators on Timestamp.

    Objective-C

    • ➕ Add ability to introspect list of enum values (#4678)
    • Copy the value when setting message/data fields (#5215)
    • 👌 Support suppressing the objc package prefix checks on a list of files (#5309)
    • More complete keyword and NSObject method (via categories) checks for field names, can result in more fields being rename, but avoids the collisions at runtime (#5289)
    • 🛠 Small fixes to TextFormat generation for extensions (#5362)
    • 🗄 Provide more details/context in deprecation messages (#5412)
    • Array/Dictionary enumeration blocks NS_NOESCAPE annotation for Swift (#5421)
    • Properly annotate extensions for ARC when their names imply behaviors (#5427)
    • Enum alias name collision improvements (#5480)