diff --git a/src/Contracts/DynamicSearchRule.php b/src/Contracts/DynamicSearchRule.php
index 24679891..4273f59b 100644
--- a/src/Contracts/DynamicSearchRule.php
+++ b/src/Contracts/DynamicSearchRule.php
@@ -25,13 +25,18 @@
  *     start?: non-empty-string|null,
  *     end?: non-empty-string|null
  * }
+ * @phpstan-type FilterCondition array{
+ *     values: array<string, mixed>
+ * }
  * @phpstan-type SearchRuleConditions array{
  *     query?: QueryCondition|null,
- *     time?: TimeCondition|null
+ *     time?: TimeCondition|null,
+ *     filter?: FilterCondition|null
  * }
  * @phpstan-type RawDynamicSearchRule array{
  *     uid: non-empty-string,
  *     description?: string|null,
+ *     lastUpdatedAt?: non-empty-string,
  *     precedence?: non-negative-int|null,
  *     active?: bool,
  *     conditions?: SearchRuleConditions|null,
@@ -52,6 +57,8 @@ final class DynamicSearchRule
 
     private readonly ?string $description;
 
+    private readonly ?\DateTimeImmutable $lastUpdatedAt;
+
     /**
      * @var non-negative-int|null
      */
@@ -73,6 +80,7 @@ public function __construct(
         $this->uid = $raw['uid'];
         $this->actions = $raw['actions'];
         $this->description = $raw['description'] ?? null;
+        $this->lastUpdatedAt = isset($raw['lastUpdatedAt']) ? new \DateTimeImmutable($raw['lastUpdatedAt']) : null;
         $this->precedence = $raw['precedence'] ?? null;
         $this->active = $raw['active'] ?? null;
         $this->conditions = $raw['conditions'] ?? null;
@@ -96,6 +104,11 @@ public function getDescription(): ?string
         return $this->description;
     }
 
+    public function getLastUpdatedAt(): ?\DateTimeImmutable
+    {
+        return $this->lastUpdatedAt;
+    }
+
     public function getPrecedence(): ?int
     {
         return $this->precedence;
diff --git a/tests/Contracts/DynamicSearchRuleTest.php b/tests/Contracts/DynamicSearchRuleTest.php
index fded8215..034f44e9 100644
--- a/tests/Contracts/DynamicSearchRuleTest.php
+++ b/tests/Contracts/DynamicSearchRuleTest.php
@@ -14,6 +14,7 @@ public function testFromArray(): void
         $raw = [
             'uid' => 'movie-rule',
             'description' => 'Movie promotion',
+            'lastUpdatedAt' => '2026-07-27T06:47:12.123456789Z',
             'precedence' => 1,
             'active' => true,
             'conditions' => [
@@ -25,6 +26,12 @@ public function testFromArray(): void
                     'start' => '2026-01-01T00:00:00Z',
                     'end' => null,
                 ],
+                'filter' => [
+                    'values' => [
+                        'color' => 'red',
+                        'category' => 'shirt',
+                    ],
+                ],
             ],
             'actions' => [
                 [
@@ -44,6 +51,10 @@ public function testFromArray(): void
 
         self::assertSame('movie-rule', $rule->getUid());
         self::assertSame('Movie promotion', $rule->getDescription());
+        self::assertSame(
+            '2026-07-27T06:47:12.123456+00:00',
+            $rule->getLastUpdatedAt()?->format('Y-m-d\TH:i:s.uP')
+        );
         self::assertSame(1, $rule->getPrecedence());
         self::assertTrue($rule->isActive());
         self::assertSame($raw['conditions'], $rule->getConditions());
@@ -51,4 +62,14 @@ public function testFromArray(): void
         self::assertSame($raw, $rule->getRaw());
         self::assertSame($raw, $rule->toArray());
     }
+
+    public function testLastUpdatedAtIsOptionalForOlderResponses(): void
+    {
+        $rule = DynamicSearchRule::fromArray([
+            'uid' => 'movie-rule',
+            'actions' => [],
+        ]);
+
+        self::assertNull($rule->getLastUpdatedAt());
+    }
 }
diff --git a/tests/Contracts/UpdateDynamicSearchRuleQueryTest.php b/tests/Contracts/UpdateDynamicSearchRuleQueryTest.php
index 7d0ea06a..b0866762 100644
--- a/tests/Contracts/UpdateDynamicSearchRuleQueryTest.php
+++ b/tests/Contracts/UpdateDynamicSearchRuleQueryTest.php
@@ -81,6 +81,12 @@ public function testFullPayload(): void
                     'start' => '2026-01-01T00:00:00Z',
                     'end' => null,
                 ],
+                'filter' => [
+                    'values' => [
+                        'color' => 'red',
+                        'category' => 'shirt',
+                    ],
+                ],
             ])
             ->setActions([
                 [
@@ -108,6 +114,12 @@ public function testFullPayload(): void
                     'start' => '2026-01-01T00:00:00Z',
                     'end' => null,
                 ],
+                'filter' => [
+                    'values' => [
+                        'color' => 'red',
+                        'category' => 'shirt',
+                    ],
+                ],
             ],
             'actions' => [
                 [