diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 462dfa638c9a..1861a38e4515 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -173,7 +173,7 @@
   "google-cloud-bigquery-migration-v2+FILLER": "0.0.0",
   "google-cloud-bigquery-reservation": "1.7.0",
   "google-cloud-bigquery-reservation+FILLER": "0.0.0",
-  "google-cloud-bigquery-reservation-v1": "1.10.0",
+  "google-cloud-bigquery-reservation-v1": "1.11.0",
   "google-cloud-bigquery-reservation-v1+FILLER": "0.0.0",
   "google-cloud-bigquery-storage": "1.7.0",
   "google-cloud-bigquery-storage+FILLER": "0.0.0",
diff --git a/google-cloud-bigquery-reservation-v1/CHANGELOG.md b/google-cloud-bigquery-reservation-v1/CHANGELOG.md
index d9869dea7c4a..05d39b84d79c 100644
--- a/google-cloud-bigquery-reservation-v1/CHANGELOG.md
+++ b/google-cloud-bigquery-reservation-v1/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Release History
 
+### 1.11.0 (2026-04-15)
+
+#### Features
+
+* add principal field to BigQuery Reservation Assignment ([#33832](https://github.com/googleapis/google-cloud-ruby/issues/33832)) 
+
 ### 1.10.0 (2026-03-19)
 
 #### Features
diff --git a/google-cloud-bigquery-reservation-v1/lib/google/cloud/bigquery/reservation/v1/version.rb b/google-cloud-bigquery-reservation-v1/lib/google/cloud/bigquery/reservation/v1/version.rb
index 385f08bf6d55..f2bc570a7b7b 100644
--- a/google-cloud-bigquery-reservation-v1/lib/google/cloud/bigquery/reservation/v1/version.rb
+++ b/google-cloud-bigquery-reservation-v1/lib/google/cloud/bigquery/reservation/v1/version.rb
@@ -22,7 +22,7 @@ module Cloud
     module Bigquery
       module Reservation
         module V1
-          VERSION = "1.10.0"
+          VERSION = "1.11.0"
         end
       end
     end
diff --git a/google-cloud-bigquery-reservation-v1/snippets/snippet_metadata_google.cloud.bigquery.reservation.v1.json b/google-cloud-bigquery-reservation-v1/snippets/snippet_metadata_google.cloud.bigquery.reservation.v1.json
index d2ec84ca176c..0956c68609da 100644
--- a/google-cloud-bigquery-reservation-v1/snippets/snippet_metadata_google.cloud.bigquery.reservation.v1.json
+++ b/google-cloud-bigquery-reservation-v1/snippets/snippet_metadata_google.cloud.bigquery.reservation.v1.json
@@ -1,7 +1,7 @@
 {
   "client_library": {
     "name": "google-cloud-bigquery-reservation-v1",
-    "version": "1.10.0",
+    "version": "1.11.0",
     "language": "RUBY",
     "apis": [
       {