Pub/Sub release notes

This page contains production updates and feature announcements for the Pub/Sub service. For language-specific updates about Pub/Sub Client Library releases, use the following links: C#, Go, Java, Node.js, PHP, Python, and Ruby.

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April 17, 2026

Feature

April 16, 2026

Feature

You can stream messages from Pub/Sub directly to a Bigtable table using Bigtable subscriptions. This feature lets you write streaming messages to Bigtable without needing a separate subscriber such as Dataflow. This feature is available in Preview.

April 06, 2026

Feature

Pub/Sub now offers the AI Inference Single Method Transform (SMT). This SMT lets you get inferences on Pub/Sub messages from Vertex AI models. The model's inferences are added to each message, making them available for downstream processing along with the original message data.

The change is being rolled out in a phased manner over the rest of the week. For more information, see AI Inference SMT. This feature is generally available.

March 13, 2026

Feature

You can now use the Pub/Sub remote MCP server to manage Pub/Sub resources. You can create, list, get, update, and delete Pub/Sub topics, subscriptions, and snapshots, as well as publish messages to topics.

This feature is in Preview.

January 20, 2026

Feature

Pub/Sub is now available in the Bangkok region (asia-southeast3). For more information, see Cloud locations.

December 29, 2025

Libraries

Java

1.144.1 (2025-12-22)

Bug Fixes
  • Lower the Subscriber protocol version to disable the streaming pull keepalive feature (#2652) (ca99c2a)

December 22, 2025

Libraries

Python

2.34.0 (2025-12-16)

Features
  • support mTLS certificates when available (#1566) (24761a2f)

Java

1.145.0-rc1 (2025-12-16)

Features
  • [java] allow passing libraries_bom_version from env (#1967) (#2033) (825c5f8)
  • Add IngestionFailureEvent to the external proto (6c67798)
  • Add Kafka-based sources to IngestionDataSourceSettings proto and IngestionFailureEvent proto (2947169)
  • add keepalive feature to tear down streams in their absence (#2605) (99aca4f)
  • Add MessageTransformationFailureReason to IngestionFailureEvent (8271399)
  • Add OpenTelemetry tracing to the Publisher and Subscriber (#2086) (db522b6)
  • Add SchemaViolationReason to IngestionFailureEvent (21cc376)
  • add service_account_email for export subscriptions (#2054) (670db3e)
  • add support for message transforms to Topic and Subscription (