gRPC - v1.53.0

This is release 1.53.0 (glockenspiel) 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

• xDS: fix crash when removing the last endpoint from the last locality in weighted_target. (#32592)
• filter stack: pass peer name up via recv_initial_metadata batch. (#31933)
• [EventEngine] Add advice against blocking work in callbacks. (#32397)
• [http2] Dont drop connections on metadata limit exceeded. (#32309)
• xDS: reject aggregate cluster with empty cluster list. (#32238)
• Fix Python epoll1 Fork Support. (#32196)
• server: introduce ServerMetricRecorder API and move per-call reporting from a C++ interceptor to a C-core filter. (#32106)
• [EventEngine] Add invalid handle types to the public API. (#32202)
• [EventEngine] Refactoring the EventEngine Test Suite: Part 1. (#32127)
• xDS: fix WeightedClusters total weight handling. (#32134)

C++

• Update minimum MSVC version to 2019. (#32615)
• Use CMake variables for paths in pkg-config files. (#31671)

C#

• Grpc.Tools: Use x86 protoc binaries on arm64 Windows. (#32017)

Python

• Support python 3.11 on aarch64. (#32270)
• Include .pyi file. (#32268)
• De-experimentalize wait-for-ready. (#32143)
• De-experimentalize compression. (#32138)

Ruby

• [ruby]: add pre-compiled binaries for ruby 3.2; drop them for ruby 2.6. (#32089)