Sourced from grpcio's releases.

Release v1.37.1

This is release 1.37.1 (gilded) 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

• Fix #25897 to avoid crashes when certificates are not yet updated (#25899). (#25965)
• [Backport] Fix use-after-unref bug in fault_injection_filter. (#25935)

C++

• Enable channelz for xds_interop_client and xds_interop_server (#25939). (#25968)

Python

• Also build python3.6 aarch64 manylinux2014 wheel (backport to v1.37.x). (#25944)

Release v1.37.0

This is release 1.37.0 (gilded) 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

• Bump up minimum supported clang to 4.0. (#25443)
• Use URI form of address for channelz listen node. (#25785)
• Implementation CSDS (xDS Config Dump). (#25038)
• Don't assume that c-ares won't retry failed writes in grpc_core::GrpcPolledFdWindows::SendVUDP. (#25726)
• Fix an infinite read loop with SRV record resolution on windows. (#25672)
• xDS status notifier. (#25321)
• Remove CAS loops in global subchannel pool and simplify subchannel refcounting. (#25485)
• Add missing security field to channelz Socket. (#25593)
• Disable check_call_host when server_verification_option is not GRPC_TLS_SERVER_VERIFICATION. (#25577)

C++

• Remove fault injection environmental variable guard. (#25792)
• Implement C++ Admin Interface API. (#25753)

... (truncated)

Sourced from grpcio's changelog.

gRPC Release Schedule

Below is the release schedule for gRPC Java, Go and Core and its dependent languages C++, C#, Objective-C, PHP, Python and Ruby.

Releases are scheduled every six weeks on Tuesdays on a best effort basis. In some unavoidable situations a release may be delayed or released early or a language may skip a release altogether and do the next release to catch up with other languages. See the past releases in the links above. A six-week cycle gives us a good balance between delivering new features/fixes quickly and keeping the release overhead low.

The gRPC release support policy can be found here.

Releases are cut from release branches. For Core and Java repos, the release branch is cut two weeks before the scheduled release date. For Go, the branch is cut just before the release. An RC (release candidate) is published for Core and its dependent languages just after the branch cut. This RC is later promoted to release version if no further changes are made to the release branch. We do our best to keep head of master branch stable at all times regardless of release schedule. Daily build packages from master branch for C#, PHP, Python, Ruby and Protoc plugins are published on packages.grpc.io. If you depend on gRPC in production we recommend to set up your CI system to test the RCs and, if possible, the daily builds.

Names of gRPC releases are here.

Release	Scheduled Branch Cut	Scheduled Release Date
v1.17.0	Nov 19, 2018	Dec 4, 2018
v1.18.0	Jan 2, 2019	Jan 15, 2019
v1.19.0	Feb 12, 2019	Feb 26, 2019
v1.20.0	Mar 26, 2019	Apr 9, 2019
v1.21.0	May 7, 2019	May 21, 2019
v1.22.0	Jun 18, 2019	Jul 2, 2019
v1.23.0	Jul 30, 2019	Aug 13, 2019
v1.24.0	Sept 10, 2019	Sept 24, 2019
v1.25.0	Oct 22, 2019	Nov 5, 2019
v1.26.0	Dec 3, 2019	Dec 17, 2019
v1.27.0	Jan 14, 2020	Jan 28, 2020
v1.28.0	Feb 25, 2020	Mar 10, 2020
v1.29.0	Apr 7, 2020	Apr 21, 2020
v1.30.0	May 19, 2020	Jun 2, 2020
v1.31.0	Jul 14, 2020	Jul 28, 2020
v1.32.0	Aug 25, 2020	Sep 8, 2020
v1.33.0	Oct 6, 2020	Oct 20, 2020
v1.34.0	Nov 17, 2020	Dec 1, 2020
v1.35.0	Dec 29, 2020	Jan 12, 2021
v1.36.0	Feb 9, 2021	Feb 23, 2021
v1.37.0	Mar 23, 2021	Apr 6, 2021
v1.38.0	May 4, 2021	May 18, 2021
v1.39.0	Jun 15, 2021	Jun 29, 2021
v1.40.0	Jul 27, 2021	Aug 10, 2021
v1.41.0	Sep 7, 2021	Sep 21, 2021
v1.42.0	Oct 19, 2021	Nov 2, 2021
v1.43.0	Nov 30, 2021	Dec 14, 2021
v1.44.0	Jan 11, 2022	Jan 25, 2022
v1.45.0	Feb 22, 2022	Mar 8, 2022

• 8664c83 Bump to 1.37.1 (#26040)
• 11ac770 buildscripts: xds-k8s pin pip to 21.0.1 (#26088)
• 27c2286 temporarily change ::createInsecure() back to return NULL (#26054)
• 300c5ca [Backport][1.37.x] Backport xds-k8s driver changes (#26067)
• 01944ee [Backport][1.37.x] test_csds (#26047)
• e378277 [Backport][1.37.x] Add kokoro job for xds psm security tests (#26035)
• 4bbeb37 Backport several additions / fixes to PHP / Ruby xDS Interop tests (#26037)
• 02e2afe xds: move path_matching and header_matching to all; add fault_injection to ru...
• 417c0ad Fix #25897 to avoid crashes when certificates are not yet updated (#25899) (#...
• 0e6a95b Enable channelz for xds_interop_client and xds_interop_server (#25939) (#25968)
• Additional commits viewable in compare view

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