Update dependency Google.Protobuf to v3.21.6

Dropped Ruby 2.3 and 2.4 support for CI and releases. (#9311)
Added Ruby 3.1 support for CI and releases (#9566).
Message.decode/encode: Add recursion_limit option (#9218/#9486)
Allocate with xrealloc()/xfree() so message allocation is visible to the Ruby GC. In certain tests this leads to much lower memory usage due to more frequent GC runs (#9586).
Fix conversion of singleton classes in Ruby (#9342)
Suppress warning for intentional circular require (#9556)
JSON will now output shorter strings for double and float fields when possible without losing precision.
Encoding and decoding of binary format will now work properly on big-endian systems.
UTF-8 verification was fixed to properly reject surrogate code points.
Unknown enums for proto2 protos now properly implement proto2's behavior of putting such values in unknown fields.

Java

Revert "Standardize on Array copyOf" (#9400)
Resolve more java field accessor name conflicts (#8198)
Don't support map fields in DynamicMessage.Builder.{getFieldBuilder,getRepeatedFieldBuilder}
Fix parseFrom to only throw InvalidProtocolBufferException
InvalidProtocolBufferException now allows arbitrary wrapped Exception types.
Fix bug in FieldSet.Builder.mergeFrom
Flush CodedOutputStream also flushes underlying OutputStream
When oneof case is the same and the field type is Message, merge the subfield. (previously it was replaced.)’
Add @CheckReturnValue to some protobuf types
Report original exceptions when parsing JSON
Add more info to @deprecated javadoc for set/get/has methods
Fix initialization bug in doc comment line numbers
Fix comments for message set wire format.

Kotlin

Add test scope to kotlin-test for protobuf-kotlin-lite (#9518)
Add orNull extensions for optional message fields.
Add orNull extensions to all proto3 message fields.

Python

Dropped support for Python < 3.7 (#9480)
Protoc is now able to generate python stubs (.pyi) with --pyi_out
Pin multibuild scripts to get manylinux1 wheels back (#9216)
Fix type annotations of some Duration and Timestamp methods.
Repeated field containers are now generic in field types and could be used in type annotations. *[Breaking change] Protobuf python generated codes are simplified. Descriptors and message classes' definitions are now dynamic created in internal/builder.py. Insertion Points for messages classes are discarded.
has_presence is added for FieldDescriptor in python
Loosen indexing type requirements to allow valid index() implementations rather than only PyLongObjects.
Fix the deepcopy bug caused by not copying message_listener.
Added python JSON parse recursion limit (default 100)
Path info is added for python JSON parse errors
Pure python repeated scalar fields will not able to pickle. Convert to list first.
Timestamp.ToDatetime() now accepts an optional tzinfo parameter. If specified, the function returns a timezone-aware datetime in the given time zone. If omitted or None, the function returns a timezone-naive UTC datetime (as previously).
Adds client_streaming and server_streaming fields to MethodDescriptor.
Add "ensure_ascii" parameter to json_format.MessageToJson. This allows smaller JSON serializations with UTF-8 or other non-ASCII encodings.
Added experimental support for directly assigning numpy scalars and array.
Improve the calculation of public_dependencies in DescriptorPool.
[Breaking Change] Disallow setting fields to numpy singleton arrays or repeated fields to numpy multi-dimensional arrays. Numpy arrays should be indexed or flattened explicitly before assignment.

Compiler

Migrate IsDefault(const std::string*) and UnsafeSetDefault(const std::string*)
Implement strong qualified tags for TaggedPtr
Rework allocations to power-of-two byte sizes.
Migrate IsDefault(const std::string*) and UnsafeSetDefault(const std::string*)
Implement strong qualified tags for TaggedPtr
Make TaggedPtr Set...() calls explicitly spell out the content type.
Check for parsing error before verifying UTF8.
Enforce a maximum message nesting limit of 32 in the descriptor builder to guard against stack overflows
Fixed bugs in operators for RepeatedPtrIterator
Assert a maximum map alignment for allocated values
Fix proto1 group extension protodb parsing error
Do not log/report the same descriptor symbol multiple times if it contains more than one invalid character.
Add UnknownFieldSet::SerializeToString and SerializeToCodedStream.
Remove explicit default pointers and deprecated API from protocol compiler

Arenas

Change Repeated*Field to reuse memory when using arenas.
Implements pbarenaz for profiling proto arenas
Introduce CreateString() and CreateArenaString() for cleaner semantics
Fix unreferenced parameter for MSVC builds
Add UnsafeSetAllocated to be used for one-of string fields.
Make Arena::AllocateAligned() a public function.
Determine if ArenaDtor related code generation is necessary in one place.
Implement on demand register ArenaDtor for InlinedStringField

C++

Enable testing via CTest (#8737)
Add option to use external GTest in CMake (#8736)
CMake: Set correct sonames for libprotobuf-lite.so and libprotoc.so (#8635) (#9529)
Add cmake option protobuf_INSTALL to not install files (#7123)
CMake: Allow custom plugin options e.g. to generate mocks (#9105)
CMake: Use linker version scripts (#9545)
Manually *struct Cord fields to work better with arenas.
Manually destruct map fields.
Generate narrower code
Fix https://github.com/protocolbuffers/protobuf/issues/9378 by removing shadowed cached_size field
Remove GetPointer() and explicit nullptr defaults.
Add proto_h flag for speeding up large builds
Add missing overload for reference wrapped fields.
Add MergedDescriptorDatabase::FindAllFileNames()
RepeatedField now defines an iterator type instead of using a pointer.
Remove obsolete macros GOOGLE_PROTOBUF_HAS_ONEOF and GOOGLE_PROTOBUF_HAS_ARENAS.

PHP

Fix: add missing reserved classnames (#9458)
PHP 8.1 compatibility (#9370)

C#

Fix trim warnings (#9182)
Fixes NullReferenceException when accessing FieldDescriptor.IsPacked (#9430)
Add ToProto() method to all descriptor classes (#9426)
Add an option to preserve proto names in JsonFormatter (#6307)

Objective-C

Add prefix_to_proto_package_mappings_path option. (#9498)
Rename proto_package_to_prefix_mappings_path to package_to_prefix_mappings_path. (#9552)
Add a generation option to control use of forward declarations in headers. (#9568)

`v3.19.5`

C++

Reduce memory consumption of MessageSet parsing
This release addresses a Security Advisory for C++ and Python users

`v3.19.4`

Python

Make libprotobuf symbols local on OSX to fix issue #9395 (#9435)

Ruby

Fixed a data loss bug that could occur when the number of optional fields in a message is an exact multiple of 32. (#9440).

PHP

Fixed a data loss bug that could occur when the number of optional fields in a message is an exact multiple of 32. (#9440).

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Apr 24 '22 18:04 renovate[bot]