Dependencies

• Bump protobuf-java to 3.11.0.
• Bump protobuf-javalite to 3.11.0. This brings lite in-line with full protobuf. Be aware that the Maven artifact name changed for Protobuf lite. The dependency is now com.google.protobuf:protobuf-javalite instead of com.google.protobuf:protobuf-lite
• Bump gson to 2.8.6
• Bump google-auth-library-credentials and google-auth-library-oauth2-http to 0.18.0 (#6360)
• Bump mockito to 2.28.2 (#6355)

Bug Fixes

• netty, okhttp: Known IOExceptions are logged as FINE level
• interop-testing, benchmarks: missing executables (since 1.19.0) is now published again
• cronet: grpc-cronet artifact contains empty .aar due to code shrinking was enabled, now it is fixed.
• alts: fix lazychannel close (#6475)

API Changes

• api, core: make channel logger accessible through NameResolver.Args (#6430)
• api, core: make scheduled executor service accessible for NameResolver.Args (#6455)
• stub, compiler: generated stubs are now extended from AbstractStub to indicate stub type (AbstractAsyncStub, AbstractFutureStub, AbstractFutureStub)
• api: the deprecated API ManagedChannelBuilder.usePlaintext(boolean) is removed (#1772, #6440).

New Features

• Pre-build binaries for the aarch64 platform
• Add s390x cross-compiling support

Acknowledgements

• Carl Mastrangelo (@carl-mastrangelo)
• Elliotte Rusty Harold (@elharo)
• Liu sheng (@liusheng)
• Nayana Thorat (@Nayana-ibm)
• Steve Rao (@steverao)
• Tomo Suzuki (@suztomo)
• Yongwoo Noh (@yonguno)