gRPC-go Release 1.22.0

[Doug Fawley]

gRPC-go 1.22.0 is now released. Full release notes:

New Features

• balancer/resolver: add loadBalancingConfig and pre-parsing support (#2732)

Performance Improvements

• transport: share recv buffers (#2813)
• Remove call to proto.Clone() in http2Server.WriteStatus. (#2842)

Bug Fixes

• balancer: stop using picker from old balancer when switching balancers (#2833)
• server: fix race causing streams to be terminated by GracefulStop (#2857)
• grpclb: only force update picker when cache is used (#2843)
• metadata: write original md before appended md (#2879)
  • Special Thanks: @elvizlai
• transport: fix bug leading to hang when invalid headers are received (#2818)
• client: don't reset backoff if updating addresses while in TransientFailure (#2740)

Documentation

• examples: note about ALTS special access permission on GCP (#2846)

Please see release at: https://github.com/grpc/grpc-go/releases/tag/v1.22.0