v2.23.0

New Libraries

We are happy to announce the following GA libraries. Unless specifically noted,
the APIs in these libraries are stable, and are ready for production use.

• App Hub API
• Backup and DR Service API
• Sovereign Controls by Partners
• Cloud Storage Control API is now GA.

Updated Libraries

• AI Platform API - new
  NotebookServiceClient and PersistentResourceServiceClient
• Cloud Dataplex API - new
  CatalogServiceClient
• Network Services API - new
  DepServiceClient
• SecurityCenter - add v2 version of the library

Bigtable

• fix(bigtable): respect GOOGLE_CLOUD_CPP_OPENTELEMETRY_TRACING (#13748)

Pub/Sub

• docs(pubsub): add kinesis sample (#13593)

Spanner

• feat(spanner): add ExcludeTransactionFromChangeStreamsOption (#13898)
• feat(spanner): add spanner::Value support for TypeCode::FLOAT32 (#13862)
• feat(spanner): add samples for proto columns (#13759)
• feat(spanner): add integration tests for proto columns (#13756)
• feat(spanner): add spanner::Value support for ProtoEnum/ProtoMessage (#13747)
• feat(spanner): add representations for the Spanner PROTO/ENUM types (#13743)
• feat(spanner): add sample for instance-admin managed autoscaler (#13740)

Speech

• fix(speech): enable location specific connections (#13757)

Storage

• fix(storage): preserve full Status in default creds (#13897)
• fix(storage): respect GOOGLE_CLOUD_CPP_OPENTELEMETRY_TRACING (#13766)
• feat(storage): support HNS-enabled buckets (#13753)
• feat(storage): support soft delete timestamps (#13728)

Common Libraries

• feat(common): introduce FieldMaskOption (#13936)
• docs(common): link to system parameters page (#13937)
• feat(common): QuotaUserOption for gRPC-based libs (#13933)
• fix(common): clang-cl needs a const_cast<> (#13891)
• fix(compute): shorten paths for Bazel+MSVC (#13836)
• feat(common): support injecting custom headers (#13829)