dependabot[bot] opened a new pull request, #39672: URL: https://github.com/apache/beam/pull/39672
Bumps [cloud.google.com/go/bigtable](https://github.com/googleapis/google-cloud-go) from 1.51.0 to 1.52.0. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/googleapis/google-cloud-go/releases";>cloud.google.com/go/bigtable's releases</a>.</em></p> <blockquote> <h2>bigtable: v1.52.0</h2> <h2><a href="https://github.com/googleapis/google-cloud-go/compare/bigtable/v1.51.0...bigtable/v1.52.0";>1.52.0</a> (2026-08-03)</h2> <h3>Features</h3> <ul> <li><strong>bigtable:</strong> Add AFE picker (Simple / LeastInFlight / LeastLatency) (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20204";>#20204</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/bcbf71431d1742e2e13a13d1cbe8b0fc0433aede";>bcbf714</a>)</li> <li><strong>bigtable:</strong> Add ClientConfig.DisableSession to opt out of session backend (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20297";>#20297</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/7ee5e44e0304c5509b9b77fe0760d97771657cd9";>7ee5e44</a>)</li> <li><strong>bigtable:</strong> Add getClientConfigDirectAccessChecker for session pools (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20209";>#20209</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/3b8d30adeaf03c8452207b056d69922646d63bf2";>3b8d30a</a>)</li> <li><strong>bigtable:</strong> Add NoOpChannelPrimer for session channel pools (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20208";>#20208</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/d055a8a1b23980ad4b53c0cd690e291c9aa6248c";>d055a8a</a>)</li> <li><strong>bigtable:</strong> Add per-AFE sessionList for the two-tier session pool (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20224";>#20224</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/dbf0c3f3ea37279a2aa00803ded8e489229b15c9";>dbf0c3f</a>)</li> <li><strong>bigtable:</strong> Add protoRowToRow conversion helper for TableShim (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20257";>#20257</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/1297143a4fab4bf58cbd0bd6e44db4653a818c47";>1297143</a>)</li> <li><strong>bigtable:</strong> Add Session debug surface (observability fields + methods) (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20211";>#20211</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/d8d3e160c3e63150ef5d14e83a2ea0fd25a7e214";>d8d3e16</a>)</li> <li><strong>bigtable:</strong> Add Session lifecycle (Start, Close, ForceClose, readLoop, heartBeatLoop) (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20215";>#20215</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/b9e53c6276efe28428adfcd4671d7ac8c7e8d330";>b9e53c6</a>)</li> <li><strong>bigtable:</strong> Add Session struct + state machine (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20117";>#20117</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/09acbb37a385d2c6fca465adb70a3eb03ea4a38e";>09acbb3</a>)</li> <li><strong>bigtable:</strong> Add session.Config.EnableDebug to gate sessionz debug state (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20247";>#20247</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/ce74c315d41371b0ddf2c1ba7342446695a53900";>ce74c31</a>)</li> <li><strong>bigtable:</strong> Add SessionClient + SessionTable + lazyPool (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20228";>#20228</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/ab2c96c3ed62514dcf6526bb32259267fbe63e97";>ab2c96c</a>)</li> <li><strong>bigtable:</strong> Add SessionPoolImpl (two-tier pool + scaling + debug) (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20225";>#20225</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/683eda8c690fd2b948bd3b56777039d28421ee7c";>683eda8</a>)</li> <li><strong>bigtable:</strong> Rename session pool display to <resource-id>-<PERM> (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20248";>#20248</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/35e146e25d2897082f2d1b78b9273087efd855fd";>35e146e</a>)</li> <li><strong>bigtable:</strong> Route Client.Open()-returned *Table through the Diverter (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20273";>#20273</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/2b81c7dc2d73739f4d5f87aa43cc9a3ac031822d";>2b81c7d</a>)</li> <li><strong>bigtable:</strong> State-based classification for abnormal session close (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20243";>#20243</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/f2905b793d062ae597d9c39597d15a680e9e9967";>f2905b7</a>)</li> <li><strong>bigtable:</strong> TableShim fallback to classic on session UNIMPLEMENTED (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20269";>#20269</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/36540af84ab5f7360c5c1a92bbfb5a631d4c5cc6";>36540af</a>)</li> <li><strong>bigtable:</strong> TTL-on-idle cache for per-resource session.TableAPI (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20263";>#20263</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/00b2a49de38fe600736cf10c496f85e082ae8871";>00b2a49</a>)</li> <li><strong>bigtable:</strong> Wire Diverter on Client and route Open* via TableShim (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20256";>#20256</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/b32fbd7d02f835e8f83b4be1926e5826c27fa8a9";>b32fbd7</a>)</li> </ul> <h3>Bug Fixes</h3> <ul> <li><strong>bigtable:</strong> AFE picker latency signal — subtract poolWait and compute TransportLatency = wire − backend at source (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20281";>#20281</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/bb8c4d56bf5bb53e5e1f1d510be326821fe4ddee";>bb8c4d5</a>)</li> <li><strong>bigtable:</strong> Guard NewStream OnFinish against grpc-go double-fire (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20295";>#20295</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/b51da29536de5aa59582d2a9633a07186f8636ae";>b51da29</a>)</li> <li><strong>bigtable:</strong> Real per-resource pool teardown on sessionTable.Close + cache close-race gate (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20264";>#20264</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/599aea9e67ca2526b7822eb1e873e3aaf7b5124e";>599aea9</a>)</li> <li><strong>bigtable:</strong> Session.durations / session.uptime — set explicit histogram bucket boundaries (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20276";>#20276</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/97eee225c412db9288bb7813e6b9cc856e6aba44";>97eee22</a>)</li> <li><strong>bigtable:</strong> SessionTableHandle self-heals across cache eviction (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20296";>#20296</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/0dd98cd75383bd5902f3bec936d9ae68c64e6682";>0dd98cd</a>)</li> <li><strong>bigtable:</strong> Translate ctx errors to gRPC status on session vRPC (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20299";>#20299</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/0f3b2a519e07eccdfacad1129aa0fb69bc8f06e6";>0f3b2a5</a>)</li> <li><strong>bigtable:</strong> Treat PingAndWarm NotFound as a successful prime (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20219";>#20219</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/a1557adec2fc8a579f70cdb4de5f959ceb8d51a1";>a1557ad</a>)</li> </ul> <h3>Performance Improvements</h3> <ul> <li><strong>bigtable:</strong> Delete periodic Tick loop; sizing is event-driven (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20285";>#20285</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/2c096bddf6fc5353a3804d222b3683a55eda13e5";>2c096bd</a>)</li> <li><strong>bigtable:</strong> Drop pick_lost_race debug tag from CheckoutSession hot path (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/20280";>#20280</a>) (<a href="https://github.com/googleapis/google-cloud-go/commit/bd0e400948a15639546f150d5d2b1a1a7ceb5741";>bd0e400</a>)</li> </ul> </blockquote> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/googleapis/google-cloud-go/commit/da03b210d2dc127b4dd5f21de8467d471773ac8f";><code>da03b21</code></a> chore: librarian release pull request: 20251218T080438Z (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/13495";>#13495</a>)</li> <li><a href="https://github.com/googleapis/google-cloud-go/commit/be7e387580d54c1c740a6111da33cc0c2601b26d";><code>be7e387</code></a> test(bigquery/v2/query): deflake TestIntegration_QueryCancelWait (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/13488";>#13488</a>)</li> <li><a href="https://github.com/googleapis/google-cloud-go/commit/ce62012fadb0774979ce17f1d922d7c9ebd6232f";><code>ce62012</code></a> chore: librarian generate pull request: 20251217T081427Z (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/13492";>#13492</a>)</li> <li><a href="https://github.com/googleapis/google-cloud-go/commit/ab56892e7bc1ba960289097c9b7909bf77d26a87";><code>ab56892</code></a> docs(spanner): Update client side metrics and permission issues in README (#...</li> <li><a href="https://github.com/googleapis/google-cloud-go/commit/af39539fcaf983c2a3929df6a658669e4ec17f17";><code>af39539</code></a> test(storage/dataflux): skip flaky test (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/13490";>#13490</a>)</li> <li><a href="https://github.com/googleapis/google-cloud-go/commit/0e9a8d62209823cc95c85a85f27be8294c4c187e";><code>0e9a8d6</code></a> chore(storage): add configurations and defaults for PCU feature (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/13461";>#13461</a>)</li> <li><a href="https://github.com/googleapis/google-cloud-go/commit/241610876ef040fce8750103cc9b64149ae5bf68";><code>2416108</code></a> chore: librarian release pull request: 20251215T194424Z (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/13486";>#13486</a>)</li> <li><a href="https://github.com/googleapis/google-cloud-go/commit/14979ec5c898ddf0a233f6cc96317a77f9265e21";><code>14979ec</code></a> chore(firestore): replace deprecated io/ioutil (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/12362";>#12362</a>)</li> <li><a href="https://github.com/googleapis/google-cloud-go/commit/46fd4f4d77541b1a2f33b125332d8b62efc03228";><code>46fd4f4</code></a> chore(bigtable): replace deprecated io/ioutil (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/12358";>#12358</a>)</li> <li><a href="https://github.com/googleapis/google-cloud-go/commit/2a546c0cf9330ddc97dbb60c3b8d21be2b929221";><code>2a546c0</code></a> chore: librarian release pull request: 20251215T160018Z (<a href="https://redirect.github.com/googleapis/google-cloud-go/issues/13482";>#13482</a>)</li> <li>Additional commits viewable in <a href="https://github.com/googleapis/google-cloud-go/compare/pubsub/v1.51.0...compute/v1.52.0";>compare view</a></li> </ul> </details> <br /> [](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. 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