diff --git a/services/nginx/app/classes/release_manager.php b/services/nginx/app/classes/release_manager.php
index 286de1dc..1ddcad4e 100644
--- a/services/nginx/app/classes/release_manager.php
+++ b/services/nginx/app/classes/release_manager.php
@@ -378,6 +378,39 @@ class release_manager
         return $expected !== '' && hash_equals($expected, $token);
     }
 
+    public static function normalizeFrontendVersionGateInput(array $payload): array
+    {
+        $version = strtolower(trim((string)($payload['version'] ?? '')));
+        if (preg_match('/^[a-f0-9]{40}$/', $version) !== 1) {
+            throw new RuntimeException('Frontend release version must be a full commit SHA.');
+        }
+
+        $repository = self::normalizeGithubRepositoryName((string)($payload['repository'] ?? ''));
+        $expectedRepository = self::normalizeGithubRepositoryName(
+            self::runtimeEnvValue('RELEASE_MANAGER_FRONTEND_REPOSITORY') ?: 'copenhagentruckwash/pleno-vue'
+        );
+        if ($repository === '' || strtolower($repository) !== strtolower($expectedRepository)) {
+            throw new RuntimeException('Frontend release repository is not authorized.');
+        }
+
+        $branch = strtolower(trim((string)($payload['branch'] ?? '')));
+        if ($branch !== self::DEFAULT_BRANCH) {
+            throw new RuntimeException('Frontend release branch must be master.');
+        }
+
+        $buildId = trim((string)($payload['build_id'] ?? ''));
+        if (preg_match('/^[1-9][0-9]*-[1-9][0-9]*$/', $buildId) !== 1) {
+            throw new RuntimeException('Frontend release build id is invalid.');
+        }
+
+        return [
+            'version' => $version,
+            'repository' => $repository,
+            'branch' => $branch,
+            'build_id' => $buildId,
+        ];
+    }
+
     public static function normalizeGithubRepositoryName(string $value): string
     {
         $repository = trim($value);
diff --git a/services/nginx/app/routes/releaseManagerRoute.php b/services/nginx/app/routes/releaseManagerRoute.php
index 6c92e1a9..2f34f74a 100644
--- a/services/nginx/app/routes/releaseManagerRoute.php
+++ b/services/nginx/app/routes/releaseManagerRoute.php
@@ -59,6 +59,44 @@ class releaseManagerRoute
             }
         });
 
+        $this->post('/release/gate/frontend-version', function () {
+            global $response;
+            $manager = new release_manager();
+            if (!$manager->verifyReleaseGateToken($this->releaseGateToken())) {
+                $response->error(['message' => 'Invalid release gate token.'], 401);
+            }
+
+            try {
+                $release = release_manager::normalizeFrontendVersionGateInput($this->requestPayload());
+                redis->set('worker_target_version', $release['version']);
+                $observed = (string)(redis->get('worker_target_version') ?? '');
+                if (!hash_equals($release['version'], $observed)) {
+                    throw new \RuntimeException('Frontend release version read-back failed.');
+                }
+
+                $response->success([
+                    'version' => $observed,
+                    'repository' => $release['repository'],
+                    'branch' => $release['branch'],
+                    'build_id' => $release['build_id'],
+                ]);
+            } catch (Throwable $throwable) {
+                $response->error(['message' => $throwable->getMessage()], 422);
+            }
+        });
+
+        $this->get('/release/gate/frontend-version', function () {
+            global $response;
+            $manager = new release_manager();
+            if (!$manager->verifyReleaseGateToken($this->releaseGateToken())) {
+                $response->error(['message' => 'Invalid release gate token.'], 401);
+            }
+
+            $response->success([
+                'version' => strtolower(trim((string)(redis->get('worker_target_version') ?? ''))),
+            ]);
+        });
+
         $this->get('/superuser/releases', function () {
             global $response;
             $this->requirePermission('superuser_release_manager_view');
diff --git a/services/nginx/app/tests/Unit/ReleaseManager/ReleaseManagerTest.php b/services/nginx/app/tests/Unit/ReleaseManager/ReleaseManagerTest.php
index 70b7d8f7..2e0e70b0 100644
--- a/services/nginx/app/tests/Unit/ReleaseManager/ReleaseManagerTest.php
+++ b/services/nginx/app/tests/Unit/ReleaseManager/ReleaseManagerTest.php
@@ -87,6 +87,51 @@ it('verifies CI release gate bearer tokens from dedicated release credentials',
     }
 });
 
+it('normalizes gate-authenticated frontend release version updates', function (): void {
+    $release = release_manager::normalizeFrontendVersionGateInput([
+        'version' => 'A' . str_repeat('b', 39),
+        'repository' => 'https://github.com/copenhagentruckwash/pleno-vue.git',
+        'branch' => 'master',
+        'build_id' => '30818161014-2',
+    ]);
+
+    expect($release)->toBe([
+        'version' => 'a' . str_repeat('b', 39),
+        'repository' => 'copenhagentruckwash/pleno-vue',
+        'branch' => 'master',
+        'build_id' => '30818161014-2',
+    ]);
+});
+
+it('rejects untrusted frontend release version updates', function (array $payload, string $message): void {
+    expect(fn () => release_manager::normalizeFrontendVersionGateInput($payload))->toThrow(RuntimeException::class, $message);
+})->with([
+    'short commit' => [[
+        'version' => 'deadbeef',
+        'repository' => 'copenhagentruckwash/pleno-vue',
+        'branch' => 'master',
+        'build_id' => '123-1',
+    ], 'full commit SHA'],
+    'wrong repository' => [[
+        'version' => str_repeat('a', 40),
+        'repository' => 'copenhagentruckwash/api',
+        'branch' => 'master',
+        'build_id' => '123-1',
+    ], 'repository is not authorized'],
+    'wrong branch' => [[
+        'version' => str_repeat('a', 40),
+        'repository' => 'copenhagentruckwash/pleno-vue',
+        'branch' => 'beta',
+        'build_id' => '123-1',
+    ], 'branch must be master'],
+    'invalid build id' => [[
+        'version' => str_repeat('a', 40),
+        'repository' => 'copenhagentruckwash/pleno-vue',
+        'branch' => 'master',
+        'build_id' => '../release',
+    ], 'build id is invalid'],
+]);
+
 it('normalizes app-specific release gate auto-sync metadata', function (): void {
     $manager = new release_manager();
     $normalizeGate = new ReflectionMethod(release_manager::class, 'normalizeReleaseGateInput');
@@ -1182,7 +1227,11 @@ it('defines release manager schema, routes, permissions, and system-status integ
     expect($route)->toContain('/release/timeline/events');
     expect($route)->toContain('/release/github/webhook');
     expect($route)->toContain('/release/gate/test-runs');
+    expect($route)->toContain('/release/gate/frontend-version');
     expect($route)->toContain('releaseGateToken');
+    expect($route)->toContain('normalizeFrontendVersionGateInput');
+    expect($route)->toContain("redis->set('worker_target_version'");
+    expect($route)->toContain("redis->get('worker_target_version'");
     expect($route)->toContain('/superuser/releases/config');
     expect($route)->toContain('/superuser/releases/github/repositories');
     expect($route)->toContain('/superuser/releases/github/branches');