Update dependency grpcio to v1.81.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
grpcio	==1.74.0 → ==1.81.0

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Release Notes

grpc/grpc (grpcio)

v1.81.0

Compare Source

This is release 1.81.0 (graphic) of gRPC Core.

For gRPC documentation, see grpc.io. For previous releases, see Releases.

This release contains refinements, improvements, and bug fixes, with highlights listed below.

Core

• [EventEngine] Fix a potential use-after-free error on Windows. (#​42078)
• [ssl] Server side handshaker factory stores a map of key signers. (#​42002)
• [Core] Fix completion queue shutdown race on weak memory models (ARM). (#​41510)
• [EventEngine] Fix a Windows race that causes an assertion error. (#​41563)
• [grpc_error] enable error_flatten experiment in OSS. (#​41471)
• [Python] Trim Python2 backward compatiblity syntax - removed (object) inheritance. (#​41708)

Objective-C

• [ObjC] Add receiveNextMessage to GRPCUnaryProtoCall. (#​42260)

Python

• [Python] Add typing_extensions dep to aio Bazel target. (#​42001)
• [Python] [Pyright] Part 1 - Pyright for src/python/grpcio/grpc/aio/_base_server.py. (#​42240)
• [Python] Drop 3.9. (#​42145)
• [Python] grpc-status: Relax protobuf dependency upper bound to allow 7.x. (#​41948)
• [Python] [Typeguard] Part 5 - Add Typeguard SYNC Stack in tests. (#​40278)
• [Python] Remove GIL from ReceiveMessageOperation.un_c method. (#​41812)
• [Python] Support observability in AsyncIO stack. (#​41573)

Ruby

• [Ruby] Drop support for EOL Ruby 3.1 and clean up. (#​41435)
• [Ruby] Composed CallCredentials keep a reference to their source. (#​41782)

v1.80.0

Compare Source

This is release 1.80.0 (glimmering) of gRPC Core.

For gRPC documentation, see grpc.io. For previous releases, see Releases.

This release contains refinements, improvements, and bug fixes, with highlights listed below.

Core

• [ssl] Implement TLS private key signer in Python. (#​41701)
• [TLS Credentials]: Private Key Offload Implementation. (#​41606)
• Fix max sockaddr struct size on OpenBSD. (#​40454)
• [core] Enable EventEngine for Python by default, and EventEngine fork support in Python and Ruby. (#​41432)
• [TLS Credentials]: Create InMemoryCertificateProvider to update certificates independently. (#​41484)
• [Ruby] Build/test ruby 4.0 and build native gems with Ruby 4.0 support. (#​41324)
• [EventEngine] Remove an incorrect std::move in DNSServiceResolver constructor. (#​41502)
• [RR and WRR] enable change to connect from a random index. (#​41472)
• [xds] Implement gRFC A101. (#​41051)

C++

• [C++] Add SNI override option to C++ channel credentials options API. (#​41460)

C#

• [C# tools] Option to append Async to server side method names #​39010. (#​39797)

Objective-C

• [Fix][Compiler] Plugins fall back to the edition 2023 for older protobuf. (#​41357)

PHP

• [PHP] Disable php infinite recursion check for callback from Core to PHP. (#​41835)
• [PHP] Fix runtime error with PHp8.5 alpha because zend_exception_get_defaul…. (#​40337)

Python

• [Python] Fix GRPC_TRACE not working when absl log initialized in cython. (#​41814)
• Revert "[Python] Align GRPC_ENABLE_FORK_SUPPORT env defaults in core and python (#​41455)". (#​41769)
• [Python] Fix AsyncIO Server maximum_concurrent_rpcs enforcement preventing negative active_rpcs count. (#​41532)
• [Python] Docs: correct grpc.Compression references. (#​41705)
• [Python] [Typeguard] Part 4 - Add Typeguard to AIO stack in tests . (#​40226)
• [Python] Fix multi-thread exception for Asyncio gRPC clients - Fixes #​25364. (#​41483)
• [Python] Resolve absl::InitializeLog warning. (#​39779)
• [Python] Remove IF usage in Cython. (#​41400)
• [Python] Add language features to exported proto files. (#​41501)
• [Python] Fix crash when iterating on AIO Metadata keys(), values(), items() or list(metadata.values()) etc. . (#​41481)
• [Python] Modernize and revamp Public API Docs. (#​41287)

Ruby

• [Ruby] Added support to push native-debug packages off rubygems to public gcs bucket. (#​41270)

v1.78.1

Compare Source

This is release 1.78.1 (gutsy) of gRPC Core.

For gRPC documentation, see grpc.io. For previous releases, see Releases.

This release contains refinements, improvements, and bug fixes, with highlights listed below.

Python

Added 2026-03-12:
CAUTION! This gRPC Python release 1.78.1 was yanked from PyPI on 2026-02-26 due to issue #​41725.

• [REVERTED] Remove unintentional log WARNING: All log messages before absl::InitializeLog() is called are written to STDERR. (#​41639)
• [REVERTED] Fix inconsistent GRPC_ENABLE_FORK_SUPPORT runtime defaults between gRPC Core and Python. (#​41588).
  • This fixed #​37710, a request processing hang in certain multithreaded environments: Other threads are currently calling into gRPC, skipping fork() handlers.
• Modernize the API Docs site: https://grpc.github.io/grpc/python. (#​41494)

Ruby

• Build/test ruby 4.0 and build native gems with Ruby 4.0 support. (#​41554)

v1.78.0

Compare Source

This is release 1.78.0 (gutsy) of gRPC Core.

For gRPC documentation, see grpc.io. For previous releases, see Releases.

This release contains refinements, improvements, and bug fixes, with highlights listed below.

C++

• adding address_sorting dep in naming test build. (#​41045)

Objective-C

• [Backport][v1.78.x][Fix][Compiler] Plugins fall back to the edition 2023 for older protobuf. (#​41358)

Python

• [python] aio: fix race condition causing asyncio.run() to hang forever during the shutdown process. (#​40989)
• [Python] Migrate to pyproject.toml build system from setup.py builds. (#​40833)
• [Python] Log error details when ExecuteBatchError occurs (at DEBUG level). (#​40921)
• [Python] Update setuptools min version to 77.0.1 . (#​40931)

Ruby

• [ruby] Fix version comparison for the ruby_abi_version symbol for ruby 4 compatibility. (#​41061)

v1.76.0

Compare Source

This is release 1.76.0 (genuine) of gRPC Core.

For gRPC documentation, see grpc.io. For previous releases, see Releases.

This release contains refinements, improvements, and bug fixes, with highlights listed below.

Core

• Prioritize system CA over bundled CA. (#​40583)
• [event_engine] Introduce a event_engine_poller_for_python experiment. (#​40243)
• [metrics] add grpc.lb.backend_service label. (#​40486)

C#

• [csharp tools] #​39374 Grpc.Tools can't process file Suffix name with Upper character. (#​40072)

Python

• [Python] gRPC AsyncIO: Improve CompletionQueue polling performance. (#​39993)

v1.75.1

Compare Source

This is release gRPC Core 1.75.1 (gemini).

For gRPC documentation, see grpc.io. For previous releases, see Releases.

This release contains refinements, improvements, and bug fixes.

What's Changed

Python

• Release grpcio wheels with Python 3.14 support (#​40403)
• Asyncio: fixes grpc shutdown race condition occurring during python interpreter finalizations. (#​40447)
  • This also addresses previously reported issues with empty error message on Python interpreter exit (Error in sys.excepthook:/Original exception was: empty): #​36655, #​38679, #​33342
• Python 3.14: preserve current behavior when using grpc.aio async methods outside of a running event loop. (#​40750)
  • Note: using async methods outside of a running event loop is discouraged by Python, and will be deprecated in future gRPC releases. Please use the asyncio.run() function (or asyncio.Runner for custom loop factories). For interactive mode, use dedicated asyncio REPL: python -m asyncio.

Full Changelog: grpc/grpc@v1.75.0...v1.75.1

v1.75.0

Compare Source

This is release 1.75.0 (gemini) of gRPC Core.

For gRPC documentation, see grpc.io. For previous releases, see Releases.

This release contains refinements, improvements, and bug fixes, with highlights listed below.

Core

• [Security] Cherry Pick Spiffe Verification. (#​40515)
• [Python][Typeguard] Part 3 - Add Typeguard to AIO stack in tests. (#​40217)
• [c-ares] update version to 1.34.5. (#​39508)
• [pick_first] fix bug that caused us to stop attempting to connect. (#​40162)

C++

• [OTel C++] Implement retry metrics. (#​39195)

Objective-C

• Fix data race by adding custom getter for state property with @synchronized locking. (#​40146)

Python

• gRPC Python (grpcio) now depends on typing-extensions~=4.13. (#​40137)
• Update musllinux wheels from musllinux_1_1 to musllinux_1_2. (#​40317)
  • Dropping musllinux_1_1 because it reached EOL in November 2024
  • Reference on musllinux platform tags: PEP 656
• grpc.aio typehint fixes. (#​40215, #​40217)
  • Metadata type validation: Fixed metadata handling to support all sequence types (not just tuples), preventing runtime errors. Enhanced metadata type validation: isinstance(metadata, Sequence) instead of isinstance(metadata, tuple)
  • Serializer parameters: Changed to Optional[SerializingFunction] for more accurate type representation
  • Fixing the error in public API: ClientCallDetails.method was declared as str but always called with bytes, see InterceptedUnaryUnaryCall.
• Fixes issue #​40325 with grpcio failing to install on all non-Mac Apple devices internal builds. (#​40347)

Ruby

• Ruby: Mark credential object in channel. (#​40394)
• [Ruby] Add rubygems support for linux-gnu and linux-musl platforms. (#​39549)

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