Bigtable release notes

This page documents production updates to Bigtable. You can periodically check this page for announcements about new or updated features, bug fixes, known issues, and deprecated functionality. Note: To view release notes for the Bigtable HBase client for Java, see the client library's GitHub releases page.

You can see the latest product updates for all of Google Cloud on the Google Cloud page, browse and filter all release notes in the Google Cloud console, or programmatically access release notes in BigQuery.

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August 12, 2026

Feature

You can use parameterized views in Bigtable to dynamically filter data ranges for logical views based on application context and mitigate SQL injection risks. This feature is generally available (GA). For more information, see Parameterized views overview.

Feature

You can use the CLUSTER_ATTRIBUTE() filter to restrict continuous materialized view processing to specific clusters. This function lets you isolate views within an instance. This feature is generally available (GA). For more information, see Non-deterministic SQL functions.

August 10, 2026

Libraries

Go

1.52.0 (2026-08-03)

Features
  • bigtable: Add AFE picker (Simple / LeastInFlight / LeastLatency) (#20204) (bcbf714)
  • bigtable: Add ClientConfig.DisableSession to opt out of session backend (#20297) (7ee5e44)
  • bigtable: Add getClientConfigDirectAccessChecker for session pools (#20209) (3b8d30a)
  • bigtable: Add NoOpChannelPrimer for session channel pools (#20208) (d055a8a)
  • bigtable: Add per-AFE sessionList for the two-tier session pool (#20224) (dbf0c3f)
  • bigtable: Add protoRowToRow conversion helper for TableShim (#20257) (1297143)
  • bigtable: Add Session debug surface (observability fields + methods) (#20211) (d8d3e16)
  • bigtable: Add Session lifecycle (Start, Close, ForceClose, readLoop, heartBeatLoop) (#20215) (b9e53c6)
  • bigtable: Add Session struct + state machine (#20117) (09acbb3)
  • bigtable: Add session.Config.EnableDebug to gate sessionz debug state (#20247) (ce74c31)
  • bigtable: Add SessionClient + SessionTable + lazyPool (#20228) (ab2c96c)
  • bigtable: Add SessionPoolImpl (two-tier pool + scaling + debug) (#20225) (683eda8)
  • bigtable: Rename session pool display to <resource-id>-<PERM> (#20248) (35e146e)
  • bigtable: Route Client.Open()-returned *Table through the Diverter (#20273) (2b81c7d)
  • bigtable: State-based classification for abnormal session close (#20243) (f2905b7)
  • bigtable: TableShim fallback to classic on session UNIMPLEMENTED (#20269) (36540af)
  • bigtable: TTL-on-idle cache for per-resource session.TableAPI (#20263) (00b2a49)
  • bigtable: Wire Diverter on Client and route Open* via TableShim (#20256) (b32fbd7)
Bug Fixes
  • bigtable: AFE picker latency signal — subtract poolWait and compute TransportLatency = wire − backend at source (#20281) (bb8c4d5)
  • bigtable: Guard NewStream OnFinish against grpc-go double-fire (#20295) (b51da29)
  • bigtable: Real per-resource pool teardown on sessionTable.Close + cache close-race gate (#20264) (599aea9)
  • bigtable: Session.durations / session.uptime — set explicit histogram bucket boundaries (#20276) (97eee22)
  • bigtable: SessionTableHandle self-heals across cache eviction (#20296) (0dd98cd)
  • bigtable: Translate ctx errors to gRPC status on session vRPC (#20299) (0f3b2a5)
  • bigtable: Treat PingAndWarm NotFound as a successful prime (#20219) (a1557ad)
Performance Improvements
  • bigtable: Delete periodic Tick loop; sizing is event-driven (#20285) (2c096bd)
  • bigtable: Drop pick_lost_race debug tag from CheckoutSession hot path (#20280) (bd0e400)

July 30, 2026

Feature

You can use Bigtable as a remote storage backend for LMCache. By storing the large language model (LLM) key-value (KV) cache externally in Bigtable, multiple AI serving instances can share and reuse precomputed attention tensors. This reduces compute overhead and significantly improves time-to-first-token (TTFT) for repeated prompts and shared documents. This feature is in Preview.

July 29, 2026

Feature

You can use the Google Cloud console to manage row key schemas for your Bigtable tables. This feature is in Preview.

July 27, 2026

Feature

The Bigtable remote MCP server supports the Bigtable Data API, which provides the execute_sql tool that you can use to query Bigtable data using natural language prompts. This feature is generally available (GA). For more information, see Use the Bigtable remote MCP server.

Libraries

Go

1.51.0 (2026-07-23)

Features
  • bigtable: Add ChainInterceptors and RetryingVRpc for vRPC pipeline (#20185) (c7a832a)
  • bigtable: Add ClientConfigurationManager (#19986) (3a8f927)
  • bigtable: Add debug tag counter (recordDebugTag / assertDebugTag) (#20114) (3c97590)
  • bigtable: Add lazyPool helper for on-demand session pool opening (#20182) (f6ae3fb)
  • bigtable: Add PeakEwma continuous time-decay latency tracker (#20187) (9d124ef)
  • bigtable: Add PoolSizer for server-driven session pool capacity (#20189) (57ebbeb)
  • bigtable: Add session package with SessionClient + SessionTableAPI interfaces (#20180) (4b82fd2)
  • bigtable: Add Session primitives (AttemptOutcome, vRPC ctx, msgtype) (#20116) (e1011e2)
  • bigtable: Add Session state enum (#19981) (0748972)
  • bigtable: Add SessionThrottler / AdaptiveSessionThrottler for OpenSession pacing (#20184) (02e3c6d)
  • bigtable: Add SessionThrottler / AdaptiveSessionThrottler for OpenSession pacing (#20184) (29be83e)
  • bigtable: Add sessionTracer for per-Session lifecycle + vRPC metrics (#20190) (a466345)
  • bigtable: Enable new auth library and JWT for instance admin client (#20013) (21c4a44)
  • bigtable: Modularize channel priming behind a ChannelPrimer interface (#20027) (5214ab7)
  • bigtable: Modularize Direct Access compatibility check (#19987) (a25e93d)
  • o11y: Regenerate clients for LRO tracing (#20107) (779074e)
Bug Fixes
  • bigtable: Default cluster/zone in toOtelMetricAttrs to avoid Monitoring reject (#20178) (14493f4)
  • bigtable: Eliminate stats-handler MD race in internal/metrics tracer (#20158) (c387066)

July 14, 2026

Feature

AI agents can use the list_hot_tablets Model Context Protocol (MCP) tool to programmatically query Bigtable cluster health to isolate resource-intensive tablets (hot tablets) and detect overutilized node CPUs. This feature is generally available (GA).

July 09, 2026

Feature

You can use the Bigtable client library for Go to execute read jobs and queries using Data Boost.

July 07, 2026

Feature

You can bind existing tags to Bigtable instances when you create an instance and use policies to enforce mandatory tag assignments. This feature is generally available (GA). For more information, see Create an instance.

Feature

The Bigtable agent skill (bigtable-basics) is generally available (GA) in the public Google Agent Skills repository. This skill lets you equip AI agents with capabilities for Bigtable tasks, such as provisioning instances and tables, designing schemas, querying data using GoogleSQL and key-value APIs, and diagnosing performance issues or hotspots.

Feature

You can use Organization Policy Service custom constraints to manage specific operations on continuous materialized views. This feature is generally available (GA). For more information, see Use custom organization policies.

July 06, 2026

Feature

Bigtable supports direct connectivity, which bypasses the Google frontend and optimizes performance for application traffic that meets certain criteria. For more information, see Direct connectivity.

June 24, 2026

Feature

You can create hot backups and modify all backups in Bigtable Studio. For more information, see Manage backups.

June 22, 2026

Libraries

Go

1.50.0 (2026-06-17)

Features
  • bigtable: Enable JWT (#19957) (af93528)
  • bigtable: Generate Admin API client using selective gapic (#19962) (a37509d)
  • bigtable: Refactor channel_pool_factory as we need to maintain two channel factory one for session and another for unary (#14652) (0c0b6ce)
  • bigtable: Wrap admin client (#14534) (0bea4ba)
  • Update API sources and regenerate (#19950) (c7607be)

June 19, 2026