Changes

2.7.0 (2026-08-26)

Features

• Update API sources and regenerate (#20427) (eb07af9)

2.6.2 (2026-08-19)

Bug Fixes

• pubsub/v2: Update ackID batch size to 1000 (#20393) (530b88a), refs #20391

2.6.1 (2026-07-07)

Bug Fixes

• pubsub/v2/pstest: Make ackIDs unique per delivery (#14554) (9072072), closes #10707
• pubsub/v2: Manage exactly once spans properly on failure (#14559) (dd8448b), closes #14555
• pubsub/v2: Release flow control credit on scheduler.Add error (#20079) (18d7b77), closes #20078

2.6.0 (2026-04-14)

2.5.1 (2026-03-31)

Bug Fixes

• prevent nil span panic in Subscriber.Receive (#14278) (c590c35)

2.5.0 (2026-03-19)

Features

• Add BigtableConfig type (177550d)
• add keep alive support (#13457) (aeffa93)
• introduce per stream flow control (#13642) (9bb9541)

2.4.0 (2026-02-04)

Features

• Add AIInference MessageTransform type (80379ed)
• fix concurrent map write (#13530) (50a9c4a)
• update image to us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/librarian-go@sha256:ec5a10e927e3b3cdc457b23974879644572ab204864f353b19bf35d0af227678 (#13305) (04e111b)

Bug Fixes

• return AckWithResult after NackImmediately shutdown mode (#13458) (e94436c)

Documentation

• A comment for field analytics_hub_subscription_info in message .google.pubsub.v1.Subscription is updated (80379ed)
• A comment for field subscription in message .google.pubsub.v1.CreateSnapshotRequest is updated (80379ed)
• A comment for field topic in message .google.pubsub.v1.Subscription is updated (80379ed)
• Add the IDENTIFIER field behavior annotation to fields of Cloud Pub/Sub methods that represent a specific identity and need to be sourced with additional care (21c9dbf)
• add tags documentation links to Pub/Sub resource tags fields (db65e79)

2.3.0 (2025-10-22)

Features

• Add AwsKinesisFailureReason.ApiViolationReason
• Add tags to Subscription, Topic, and CreateSnapshotRequest messages for use in CreateSubscription, CreateTopic, and CreateSnapshot requests respectively
• Annotate some resource fields with their corresponding API types

Documentation

• A comment for field received_messages in message .google.pubsub.v1.StreamingPullResponse is changed

2.2.1 (2025-10-14)

Bug Fixes

• pubsub/v2: Avoid Receive hang on context cancellation (#13114) (e7e169d)
• pubsub/v2: Upgrade gRPC service registration func (8fffca2)

2.2.0 (2025-10-03)

Features

• pubsub/v2: Support the protocol version in StreamingPullRequest (#12985) (4e8c9d5)

Bug Fixes

• pubsub/v2: Respect ShutdownBehavior when handling timeout (#13021) (0135d93)

2.1.0 (2025-09-25)

Features

• pubsub/v2: Add subscriber shutdown options (#12829) (14c3887)

2.0.1 (2025-09-03)

Bug Fixes

• pubsub/v2: Update flowcontrol metrics even when disabled (#12590) (c153495)

Documentation

• pubsub/v2: Move wiki to package doc (#12605) (3de795e)

2.0.0 (2025-07-16)

Features

• pubsub/v2: Add MessageTransformationFailureReason to IngestionFailureEvent (208745b)
• pubsub/v2: Add new v2 library (#12218) (c798f62)
• pubsub/v2: Add SchemaViolationReason to IngestionFailureEvent (d8ae687)
• pubsub/v2: Generate renamed go pubsub admin clients (a95a0bf)
• pubsub/v2: Release 2.0.0 (#12568) (704efce)

Documentation

• pubsub/v2: Document that the acknowledge_confirmation and modify_ack_deadline_confirmation fields in message .google.pubsub.v1.StreamingPullResponse are not guaranteed to be populated (208745b)
• pubsub/v2: Standardize spelling of “acknowledgment” in Pub/Sub protos (d8ae687)
• pubsub/v2: Update v2 package docs with migration guide (#12564) (5ef6068)

Changes