diff --git a/.ci.yaml b/.ci.yaml
index cda5706b72f2..714e25471f34 100644
--- a/.ci.yaml
+++ b/.ci.yaml
@@ -7,9 +7,9 @@
 #  * https://github.com/flutter/cocoon/blob/main/CI_YAML.md
 enabled_branches:
   - main
-  - release-go_router-\d+\.\d+\.\d+
-  - release-cupertino_ui-\d+\.\d+\.\d+
-  - release-material_ui-\d+\.\d+\.\d+
+  - release-go_router-\d+\.\d+\.\d+(?:-[\w.]+)?(?:\+[\w.]+)?
+  - release-cupertino_ui-\d+\.\d+\.\d+(?:-[\w.]+)?(?:\+[\w.]+)?
+  - release-material_ui-\d+\.\d+\.\d+(?:-[\w.]+)?(?:\+[\w.]+)?
 
 platform_properties:
   linux:
diff --git a/script/tool/lib/src/validators/repo_info_validator.dart b/script/tool/lib/src/validators/repo_info_validator.dart
index b31f54d54170..d18bbf0174af 100644
--- a/script/tool/lib/src/validators/repo_info_validator.dart
+++ b/script/tool/lib/src/validators/repo_info_validator.dart
@@ -403,18 +403,20 @@ class RepoInfoValidator {
     final enabledBranches = yaml['enabled_branches'] as YamlList?;
     final bool hasBranchPattern =
         enabledBranches != null &&
-        enabledBranches.contains(r'release-' + packageName + r'-\d+\.\d+\.\d+');
+        enabledBranches.contains(
+          r'release-' + packageName + r'-\d+\.\d+\.\d+(?:-[\w.]+)?(?:\+[\w.]+)?',
+        );
 
     if (isBatchRelease && !hasBranchPattern) {
       printError(
-        '${_indentation}Missing release branch pattern release-$packageName-\\d+\\.\\d+\\.\\d+ '
+        '${_indentation}Missing release branch pattern release-$packageName-\\d+\\.\\d+\\.\\d+(?:-[\\w.]+)?(?:\\+[\\w.]+)? '
         'in enabled_branches in .ci.yaml\n'
         '${_indentation}See https://github.com/flutter/flutter/blob/master/docs/ecosystem/release/README.md#batch-release',
       );
       errors.add('Unexpected branch handling in .ci.yaml');
     } else if (!isBatchRelease && hasBranchPattern) {
       printError(
-        '${_indentation}Unexpected release branch pattern release-$packageName-\\d+\\.\\d+\\.\\d+ '
+        '${_indentation}Unexpected release branch pattern release-$packageName-\\d+\\.\\d+\\.\\d+(?:-[\\w.]+)?(?:\\+[\\w.]+)? '
         'in enabled_branches in .ci.yaml',
       );
       errors.add('Unexpected branch handling in .ci.yaml');
diff --git a/script/tool/test/validate_command_repo_info_test.dart b/script/tool/test/validate_command_repo_info_test.dart
index bcb59f03b94c..931d0a3503e7 100644
--- a/script/tool/test/validate_command_repo_info_test.dart
+++ b/script/tool/test/validate_command_repo_info_test.dart
@@ -696,7 +696,7 @@ release:
         root.childFile('.ci.yaml').writeAsStringSync(r'''
 enabled_branches:
   - main
-  - release-a_package-\d+\.\d+\.\d+
+  - release-a_package-\d+\.\d+\.\d+(?:-[\w.]+)?(?:\+[\w.]+)?
 ''');
       }
     }
@@ -991,7 +991,7 @@ enabled_branches:
           output,
           contains(
             contains(
-              r'Missing release branch pattern release-a_package-\d+\.\d+\.\d+ in enabled_branches in .ci.yaml',
+              r'Missing release branch pattern release-a_package-\d+\.\d+\.\d+(?:-[\w.]+)?(?:\+[\w.]+)? in enabled_branches in .ci.yaml',
             ),
           ),
         );
@@ -1006,7 +1006,7 @@ enabled_branches:
         root.childFile('.ci.yaml').writeAsStringSync(r'''
 enabled_branches:
   - main
-  - release-a_package-\d+\.\d+\.\d+
+  - release-a_package-\d+\.\d+\.\d+(?:-[\w.]+)?(?:\+[\w.]+)?
 ''');
 
         Error? commandError;
@@ -1023,7 +1023,7 @@ enabled_branches:
           output,
           contains(
             contains(
-              r'Unexpected release branch pattern release-a_package-\d+\.\d+\.\d+ in enabled_branches in .ci.yaml',
+              r'Unexpected release branch pattern release-a_package-\d+\.\d+\.\d+(?:-[\w.]+)?(?:\+[\w.]+)? in enabled_branches in .ci.yaml',
             ),
           ),
         );