v2.40.0

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.

• License Manager API

Updated Libraries

• BigQuery - added support for datapolicies/v2
• ManagedKafka - add schemaregistry to the library

Bigtable

• We have begun instrumenting the Bigtable::DataConnection class to collect several Client Side Metrics, free of charge. These metrics will be collected by default if both the OpenTelemetry and Google Cloud Monitoring dependencies are available. Users can opt-out by setting the bigtable::EnableMetricsOption to false.

• The following metrics are available in Bigtable:

  • AttemptLatency
  • OperationLatency
  • RetryCount
  • FirstResponseLatency

Spanner

• feat(spanner): add support for order_by enum (#15240)
• feat(spanner): add support for lock_hint enum (#15249)

Storage

• feat(storage): Create OTel tracing decorator for storage:: ParallelUploadFile() (#15289)
• fix(storage): Fix the bucket name not found error (#15274)
• feat(storage): Create OTel tracing decorator for Client::UploadFile() (#15245)

Google APIs interface definitions

• This release is based on definitions as of 2025-07-30T06:44:36-07:00