v2.4.0

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.

• Certificate Manager API
• Cloud Deploy API
• Datastream API

In addition, these existing libraries are now GA:

• Cloud Batch

BigQuery

• doc: add endpoint override snippets to generated libs (#10129)
• feat(bigquery): add migration service (#10034)

Bigtable

• doc(bigtable): add *Client samples (#10149)
• feat(bigtable): support GOOGLE_CLOUD_ENABLE_DIRECT_PATH (#9978)

IAM

• doc: add endpoint override snippets to generated libs (#10129)

Pub/Sub

• doc(pubsub): samples for endpoint and auth (#10136)
• feat(pubsub): install pubsub_mocks pkg (#10008)
• feat(pubsub): implement blocking publisher (#10055)
• feat(pubsub): implement per-call options for Subscriber (#10043)
• fix(pubsub): limit ModifyAckDeadlineRequest size (#10032)
• fix(pubsub): faster shutdowns for Publisher (#9991)

Spanner

• doc(spanner): add *Client samples (#10145)
• feat(spanner): add support for RowStream::RowsModified() (#10102)
• feat(spanner): support for the PG.JSONB data type (#10098)

Storage

• doc(storage): common initialization examples (#10107)
• fix(rest): too many debug headers (#10054)
• fix(rest): return complete payloads for errors (#10051)
• feat(storage): support Autoclass feature (#10003)
• feat(storage): faster InsertObject() uploads (#9997)
• fix(storage): respect MIME message boundary size limits (#9965)

Common Libraries

• feat(generator): generate authentication example (#10138)
• doc: workaround Doxygen formatting quirk (#10137)
• doc: add endpoint override snippets to generated libs (#10129)
• feat(generator): generate simple samples for *Client (#10118)
• feat: add mock library w/ StreamRange (#9998)
• doc(common): make authentication docs easier to find (#10110)
• fix: configure context in async retries (#10100)
• doc: document when GrpcNumChannelsOption applies (#10000)
• feat(generator): make idempotency policy non-abstract (#9981)
• fix(common): preserve ErrorInfo on retry errors (#9971)