Deprecate calling TemplateWrapper::unwrap() without arguments as of 3.30 and list the fix in the CHANGELOG

CHANGELOG

@@ -8,6 +8,7 @@
  * Fix `IntlExtension` letting the pattern derived from a date formatter prototype override an explicit locale
  * Fix `IntlExtension` not honoring the locale of a date formatter prototype configured with no date and time styles
  * Speed up macro calls
+ * Fix `TemplateWrapper::unwrap()` failing when called without arguments, which is now deprecated
  * Add `TemplateWrapper::getDefaultEscapeStrategy()` to know the escaping strategy a template was compiled with
  * Report a clear error when `random`, `reverse`, `shuffle`, and `split` receive a string that is not valid UTF-8
  * Fix the deprecation about omitting parentheses when calling a macro being reported twice for the same call

src/TemplateWrapper.php

@@ -124,7 +124,7 @@ final class TemplateWrapper
     public function unwrap(?Environment $env = null): Template
     {
         if (null === $env) {
-            trigger_deprecation('twig/twig', '3.29', 'Calling "%s()" without arguments is deprecated, pass the Twig environment instead.', __METHOD__);
+            trigger_deprecation('twig/twig', '3.30', 'Calling "%s()" without arguments is deprecated, pass the Twig environment instead.', __METHOD__);
         } elseif (!$this->isOwnedBy($env)) {
             throw new RuntimeError(\sprintf('A "%s" can only be used with the "%s" that created it.', self::class, Environment::class));
         }

tests/TemplateWrapperTest.php

@@ -56,7 +56,7 @@ class TemplateWrapperTest extends TestCase
         $twig = new Environment(new ArrayLoader(['index' => 'content']));
         $wrapper = $twig->load('index');
 
-        $this->expectDeprecation('Since twig/twig 3.29: Calling "Twig\TemplateWrapper::unwrap()" without arguments is deprecated, pass the Twig environment instead.');
+        $this->expectDeprecation('Since twig/twig 3.30: Calling "Twig\TemplateWrapper::unwrap()" without arguments is deprecated, pass the Twig environment instead.');
 
         $this->assertInstanceOf(Template::class, $wrapper->unwrap());
     }