Cloud Pub/Sub API Changes — Google Cloud RadarReal-time pre-release intelligence and changelog for Google Cloud Pub/Sub. Tracked from Google Discovery Service.https://google-cloud-radar.com/en-us⚠️ [BREAKING] Zstd Compression Option Rolled Backhttps://google-cloud-radar.com/changes/2026-11-12-pubsub-v1https://google-cloud-radar.com/changes/2026-11-12-pubsub-v1The recently added Zstd compression algorithm option for Pub/Sub messages has been removed. Developers using or planning to use Zstd compression should revert to other supported algorithms.Thu, 12 Nov 2026 00:00:00 GMTData AnalyticsCloud Pub/Subpubsub.v1hightrue9canaryPub/Sub Adds Zstd Compression Supporthttps://google-cloud-radar.com/changes/2026-11-11-pubsub-v1https://google-cloud-radar.com/changes/2026-11-11-pubsub-v1Cloud Pub/Sub now supports Zstd as a compression algorithm for messages. Developers can leverage Zstd for potentially better compression ratios and performance, offering more options for optimizing message throughput and storage.Wed, 11 Nov 2026 00:00:00 GMTData AnalyticsCloud Pub/Subpubsub.v1mediumfalse6canaryPub/Sub Bigtable Sink: Custom Row Keys & Columnshttps://google-cloud-radar.com/changes/2026-09-30-pubsub-v1https://google-cloud-radar.com/changes/2026-09-30-pubsub-v1The Pub/Sub Bigtable integration now offers significantly enhanced control over data ingestion. Developers can define custom row keys and map message fields to specific Bigtable column families, moving beyond the default fixed schema.Wed, 30 Sep 2026 00:00:00 GMTData AnalyticsCloud Pub/Subpubsub.v1highfalse9canaryClient Telemetry for Pub/Sub Publish Operationshttps://google-cloud-radar.com/changes/2026-09-23-pubsub-v1beta2https://google-cloud-radar.com/changes/2026-09-23-pubsub-v1beta2Cloud Pub/Sub introduces new schemas, `PublishOperation` and `PubsubClientTelemetry`, to provide more detailed client-side telemetry for publish operations, including hedging attempts and client-side start times.Wed, 23 Sep 2026 00:00:00 GMTData AnalyticsCloud Pub/Subpubsub.v1beta2mediumfalse6canaryPub/Sub Adds Client Telemetry for Publish Operationshttps://google-cloud-radar.com/changes/2026-09-23-pubsub-v1beta1ahttps://google-cloud-radar.com/changes/2026-09-23-pubsub-v1beta1aThe Pub/Sub API now includes new schemas for client-side telemetry, `PubsubClientTelemetry` and `PublishOperation`. These additions provide insights into publish operations, such as hedging attempts and client-side publish start times, to aid in debugging and performance analysis.Wed, 23 Sep 2026 00:00:00 GMTData AnalyticsCloud Pub/Subpubsub.v1beta1amediumfalse7canaryPub/Sub Adds Client Telemetry for Publish Operationshttps://google-cloud-radar.com/changes/2026-09-23-pubsub-v1https://google-cloud-radar.com/changes/2026-09-23-pubsub-v1New `PubsubClientTelemetry` and `PublishOperation` schemas provide client-side debugging information for publish calls, including hedging attempts and start times.Wed, 23 Sep 2026 00:00:00 GMTData AnalyticsCloud Pub/Subpubsub.v1mediumfalse7canary