chore(main): release bigtable 1.53.0 (#20304) :robot: I have created a release *beep* *boop* --- ## [1.53.0](https://github.com/googleapis/google-cloud-go/compare/bigtable/v1.52.0...bigtable/v1.53.0) (2026-08-27) ### Features * **bigtable/accelerator:** Add --user-agent flag to daemon ([#20341](https://github.com/googleapis/google-cloud-go/issues/20341)) ([6b33c06](https://github.com/googleapis/google-cloud-go/commit/6b33c06f6a19ce512cbe9556fe2932f5d7878b66)) * **bigtable/accelerator:** Add daemon binary with identity verification ([#20330](https://github.com/googleapis/google-cloud-go/issues/20330)) ([2f9cf89](https://github.com/googleapis/google-cloud-go/commit/2f9cf898f165c0b4fee6fdda8d037c109b0779e1)) * **bigtable/accelerator:** Add proxy channel scaffold owning a sessi… ([#20310](https://github.com/googleapis/google-cloud-go/issues/20310)) ([d65ca7d](https://github.com/googleapis/google-cloud-go/commit/d65ca7da8108c643abc56237e2db0a17c3447c7c)) * **bigtable/accelerator:** Add stdin-EOF and parent-PID lifecycle wa… ([#20328](https://github.com/googleapis/google-cloud-go/issues/20328)) ([dc1c6ae](https://github.com/googleapis/google-cloud-go/commit/dc1c6ae0f773d405e35ffe68741c46d220e450d1)) * **bigtable/accelerator:** Add UDS server with authenticated proxy i… ([#20320](https://github.com/googleapis/google-cloud-go/issues/20320)) ([a837020](https://github.com/googleapis/google-cloud-go/commit/a837020465473f8cc21213de818dc96d5ff46f3a)) * **bigtable/accelerator:** Add V2-to-session request adapters ([#20271](https://github.com/googleapis/google-cloud-go/issues/20271)) ([4cb6f16](https://github.com/googleapis/google-cloud-go/commit/4cb6f1644d070b0af8ee3706d36640a91ded48d8)) * **bigtable/accelerator:** Authenticate UDS callers with a stdin tok… ([#20324](https://github.com/googleapis/google-cloud-go/issues/20324)) ([7847ab7](https://github.com/googleapis/google-cloud-go/commit/7847ab71efc0c5745eaa49235762ecab523312f1)) * **bigtable/accelerator:** Dispatch MutateRow and single-row ReadRow… ([#20312](https://github.com/googleapis/google-cloud-go/issues/20312)) ([c89f336](https://github.com/googleapis/google-cloud-go/commit/c89f336749601fa958d02c984cafd7e96007c8f1)) * Update API sources and regenerate ([#20369](https://github.com/googleapis/google-cloud-go/issues/20369)) ([bfe3aaf](https://github.com/googleapis/google-cloud-go/commit/bfe3aafc49e0c13815aa0401b1eba47aef4511df)) * Update sources and regenerate ([#20399](https://github.com/googleapis/google-cloud-go/issues/20399)) ([a6b5cdb](https://github.com/googleapis/google-cloud-go/commit/a6b5cdb4eec5e66fb6bb4a00f9ec89c088826e26)) ### Bug Fixes * **bigtable/internal/transport:** Drop redundant defer p.Close() in AFE picker tests ([#20311](https://github.com/googleapis/google-cloud-go/issues/20311)) ([c05b767](https://github.com/googleapis/google-cloud-go/commit/c05b76788b76de616cf49ca7c3a7cfec863913b8)) * **bigtable:** Register c2p resolver + RLS balancer for accelerator daemon DirectPath ([#20362](https://github.com/googleapis/google-cloud-go/issues/20362)) ([95f372f](https://github.com/googleapis/google-cloud-go/commit/95f372f660f8246fe869ae085b75b70e537533f0)) * **bigtable:** Session client — set AllowNonDefaultServiceAccount on DirectPath dial ([#20343](https://github.com/googleapis/google-cloud-go/issues/20343)) ([b9c76ec](https://github.com/googleapis/google-cloud-go/commit/b9c76ec52f46f4fb1f1252b4ca159ca3cd2f86fa)) * **bigtable:** Session client — single ownership + single-flight pool loading ([#20368](https://github.com/googleapis/google-cloud-go/issues/20368)) ([f4ad950](https://github.com/googleapis/google-cloud-go/commit/f4ad950b6ace8c34820568073129e43bc69c7797)) * **bigtable:** Session pool — re-drive creation after a never-activated close so the consecutive-failure breaker is reachable ([#20355](https://github.com/googleapis/google-cloud-go/issues/20355)) ([ee74949](https://github.com/googleapis/google-cloud-go/commit/ee749491ff2316f35ae17cb9f82a3059e6e122db)) * **bigtable:** Use composed user agent as CSM client_name ([#20383](https://github.com/googleapis/google-cloud-go/issues/20383)) ([cb02335](https://github.com/googleapis/google-cloud-go/commit/cb02335f55c4c3f8ce04edd890d0745370996cc7)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please). Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

diff --git a/.release-please-individual-manifest.json b/.release-please-individual-manifest.json
index 8ede0ed..2ead537 100644
--- a/.release-please-individual-manifest.json
+++ b/.release-please-individual-manifest.json

@@ -1,6 +1,6 @@
 {
   "agentplatform": "0.21.0",
-  "bigtable": "1.52.0",
+  "bigtable": "1.53.0",
   "pubsub": "1.51.1",
   "pubsub/v2": "2.7.0",
   "pubsublite": "1.10.0",

diff --git a/bigtable/CHANGES.md b/bigtable/CHANGES.md
index 33dc5e6..79735b9 100644
--- a/bigtable/CHANGES.md
+++ b/bigtable/CHANGES.md

@@ -1,5 +1,31 @@
 # Changes
 
+## [1.53.0](https://github.com/googleapis/google-cloud-go/compare/bigtable/v1.52.0...bigtable/v1.53.0) (2026-08-27)
+
+
+### Features
+
+* **bigtable/accelerator:** Add --user-agent flag to daemon ([#20341](https://github.com/googleapis/google-cloud-go/issues/20341)) ([6b33c06](https://github.com/googleapis/google-cloud-go/commit/6b33c06f6a19ce512cbe9556fe2932f5d7878b66))
+* **bigtable/accelerator:** Add daemon binary with identity verification   ([#20330](https://github.com/googleapis/google-cloud-go/issues/20330)) ([2f9cf89](https://github.com/googleapis/google-cloud-go/commit/2f9cf898f165c0b4fee6fdda8d037c109b0779e1))
+* **bigtable/accelerator:** Add proxy channel scaffold owning a sessi… ([#20310](https://github.com/googleapis/google-cloud-go/issues/20310)) ([d65ca7d](https://github.com/googleapis/google-cloud-go/commit/d65ca7da8108c643abc56237e2db0a17c3447c7c))
+* **bigtable/accelerator:** Add stdin-EOF and parent-PID lifecycle wa… ([#20328](https://github.com/googleapis/google-cloud-go/issues/20328)) ([dc1c6ae](https://github.com/googleapis/google-cloud-go/commit/dc1c6ae0f773d405e35ffe68741c46d220e450d1))
+* **bigtable/accelerator:** Add UDS server with authenticated proxy i… ([#20320](https://github.com/googleapis/google-cloud-go/issues/20320)) ([a837020](https://github.com/googleapis/google-cloud-go/commit/a837020465473f8cc21213de818dc96d5ff46f3a))
+* **bigtable/accelerator:** Add V2-to-session request adapters ([#20271](https://github.com/googleapis/google-cloud-go/issues/20271)) ([4cb6f16](https://github.com/googleapis/google-cloud-go/commit/4cb6f1644d070b0af8ee3706d36640a91ded48d8))
+* **bigtable/accelerator:** Authenticate UDS callers with a stdin tok… ([#20324](https://github.com/googleapis/google-cloud-go/issues/20324)) ([7847ab7](https://github.com/googleapis/google-cloud-go/commit/7847ab71efc0c5745eaa49235762ecab523312f1))
+* **bigtable/accelerator:** Dispatch MutateRow and single-row ReadRow… ([#20312](https://github.com/googleapis/google-cloud-go/issues/20312)) ([c89f336](https://github.com/googleapis/google-cloud-go/commit/c89f336749601fa958d02c984cafd7e96007c8f1))
+* Update API sources and regenerate ([#20369](https://github.com/googleapis/google-cloud-go/issues/20369)) ([bfe3aaf](https://github.com/googleapis/google-cloud-go/commit/bfe3aafc49e0c13815aa0401b1eba47aef4511df))
+* Update sources and regenerate ([#20399](https://github.com/googleapis/google-cloud-go/issues/20399)) ([a6b5cdb](https://github.com/googleapis/google-cloud-go/commit/a6b5cdb4eec5e66fb6bb4a00f9ec89c088826e26))
+
+
+### Bug Fixes
+
+* **bigtable/internal/transport:** Drop redundant defer p.Close() in AFE picker tests ([#20311](https://github.com/googleapis/google-cloud-go/issues/20311)) ([c05b767](https://github.com/googleapis/google-cloud-go/commit/c05b76788b76de616cf49ca7c3a7cfec863913b8))
+* **bigtable:** Register c2p resolver + RLS balancer for accelerator daemon DirectPath ([#20362](https://github.com/googleapis/google-cloud-go/issues/20362)) ([95f372f](https://github.com/googleapis/google-cloud-go/commit/95f372f660f8246fe869ae085b75b70e537533f0))
+* **bigtable:** Session client — set AllowNonDefaultServiceAccount on DirectPath dial ([#20343](https://github.com/googleapis/google-cloud-go/issues/20343)) ([b9c76ec](https://github.com/googleapis/google-cloud-go/commit/b9c76ec52f46f4fb1f1252b4ca159ca3cd2f86fa))
+* **bigtable:** Session client — single ownership + single-flight pool loading ([#20368](https://github.com/googleapis/google-cloud-go/issues/20368)) ([f4ad950](https://github.com/googleapis/google-cloud-go/commit/f4ad950b6ace8c34820568073129e43bc69c7797))
+* **bigtable:** Session pool — re-drive creation after a never-activated close so the consecutive-failure breaker is reachable ([#20355](https://github.com/googleapis/google-cloud-go/issues/20355)) ([ee74949](https://github.com/googleapis/google-cloud-go/commit/ee749491ff2316f35ae17cb9f82a3059e6e122db))
+* **bigtable:** Use composed user agent as CSM client_name ([#20383](https://github.com/googleapis/google-cloud-go/issues/20383)) ([cb02335](https://github.com/googleapis/google-cloud-go/commit/cb02335f55c4c3f8ce04edd890d0745370996cc7))
+
 ## [1.52.0](https://github.com/googleapis/google-cloud-go/compare/bigtable/v1.51.0...bigtable/v1.52.0) (2026-08-03)
 
 

diff --git a/bigtable/internal/version.go b/bigtable/internal/version.go
index eba28c3..8e48a13 100644
--- a/bigtable/internal/version.go
+++ b/bigtable/internal/version.go

@@ -17,4 +17,4 @@
 package internal
 
 // Version is the current tagged release of the library.
-const Version = "1.52.0"
+const Version = "1.53.0"

diff --git a/librarian.yaml b/librarian.yaml
index 8646256..c2cd896 100644
--- a/librarian.yaml
+++ b/librarian.yaml

@@ -386,7 +386,7 @@
       - README.md
     skip_release: true
   - name: bigtable
-    version: 1.52.0
+    version: 1.53.0
     apis:
       - path: google/bigtable/v2
         go: