[protobuf] Protocol Buffers Version 26.0-rc1 is Released!

['Dennis Shao' via Protocol Buffers]

This version includes breaking changes to: C++, Java, PHP, Python, Ruby.

C++ 5.26.0-rc1 has the following breaking changes:

   -

    Make protobuf comply with the C++ layering check
   -

    Remove const GetArena method on RepeatedPtrField
   -

    Disallow incorrect ctype usage
   -

    Remove deprecated std::string error collector overrides
   -

    Promote ExtensionRange to a proper class
   -

    Remove deprecated clear APIs on repeated fields
   -

    Remove C++ legacy syntax descriptor APIs
   -

    Remove deprecated syntax APIs
   -

    Remove deprecated SupportsUnknownEnumValues method

Java 4.26.0-rc1 has the following breaking changes:

   -

    Remove unused helper methods for creating new mutable arraylists.
   -

    Use Editions features in Java full runtimes.
   -

    Stop generating the "newInstance" method. This is not used anymore.
   -

    Remove unused overload of AbstractMessageLite.addAll that worked on a
   Collection instead of a List.
   -

    Remove obsolete runtime internalBuildGeneratedFileFrom which was for
   backwards compatibility with old gencode.
   -

    Remove unnecessary overloads of methods:
   -

    Remove unnecessary generated overrides for GeneratedMessage.Builder
   methods:
   -

    The base class for generated messages will be GeneratedMessage, not
   GeneratedMessageV3.
   -

    Remove deprecated runtime methods for compatibility with old v2.x.x
   gencode.
   -

    Remove deprecated TextFormat print methods. These should be replaced by
   corresponding TextFormat.printer
   -

    Lock down visibility for descriptor syntax APIs.
   -

    Make deprecated Java gencode PARSER variable private.

PHP 4.26.0-rc1 has the following breaking changes:

   -

   Validate UTF-8 in string setters, as previously announced.
   -

   Remove support for PHP generic services

Python 5.26.0-rc1 has the following breaking changes:

   -

    Made text_format output default to UTF-8.
   -

    Remove deprecated syntax accessor.
   -

    Remove RegisterExtension in message class
   -

    Reject extend repeated field with none iterable
   -

    Remove Deprecated APIs that add non top descriptor.
   -

    check if Timestamp is valid.
   -

    Remove msg.UnknownFields

Ruby 4.26.0-rc1 has the following breaking changes:


   -

    Removed syntax and added has_presence?/is_packed?.
   -

    Fixed json_encode/json_decode to use the message's pool.
   -

    Freeze is now recursive, affecting all sub-messages, maps, and repeated
   fields.
   -

    Fixed inconsistencies in Message#to_h, as previously announced.
   -

    Dropped support for Ruby DSL, as previously announced.
   -

    Lock down visibility for descriptor syntax APIs.
   -

    Fixed json_encode/json_decode to use the message's pool.


You can view the release and complete release notes on Github
<https://github.com/protocolbuffers/protobuf/releases/tag/v26.0-rc1> and
additional information on our News page <https://protobuf.dev/news/>.

If you experience any issues with the release, please file a bug
<https://github.com/protocolbuffers/protobuf/issues/new/choose> or post on
the Protocol Buffers forum <https://groups.google.com/g/protobuf>.

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