gRPC - v1.51.0

This is release gRPC Core 1.51.0 (galaxy).

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

This release contains refinements, improvements, and bug fixes.

Core

• Bump core version 202211082118. (#31585)
• c-ares DNS resolver: fix logical race between resolution timeout/cancellation and fd readability. (#31443)
• [log] Longer space for filenames. (#31432)
• c-ares DNS resolver: remove unnecessary code in SRV callback. (#31426)
• Correct the domain-socket client address read out from the ServerContext. (#31108)
• outlier detection: remove env var protection. (#31251)
• EventEngineFactoryReset - remove custom factory and reset default engine. (#30554)
• [tls] Remove support for pthread tls. (#31040)

C++

• Added version macros to gRPC C++. (#31033)
• OpenCensus: Move measures, views and CensusContext to include file. (#31341)
• GcpObservability: Add experimental public target. (#31339)

C#

• Fix msbuild failing when '@' is present in path (2nd attempt). (#31527)
• Revert "Fix msbuild failing when '@' is present in path". (#31464)
• Fix msbuild failing when '@' is present in path. (#31133)

PHP

• fixing php 8.2 deprecations. (#30997)

Python

• Fix lack of cooldown between poll attempts. (#31550)
• Build with System OpenSSL on Mac OS arm64. (#31096)
• Remove enum and future. (#31381)
• [Remove Six] Remove dependency on six. (#31340)
• Update xds-protos package to pull in protobuf 4.X. (#31113)