diff --git a/doc/api.rst b/doc/api.rst
index 59b1d3cbd..0a7e0cf45 100644
--- a/doc/api.rst
+++ b/doc/api.rst
@@ -484,12 +484,6 @@ able to call the ``getTitle()`` and ``getBody()`` methods on ``Article``
 objects, and the ``title`` and ``body`` public properties. Everything else
 won't be allowed and will generate a ``\Twig\Sandbox\SecurityError`` exception.
 
-.. caution::
-
-    The ``extends`` and ``use`` tags are always allowed in a sandboxed
-    template. That behavior will change in 4.0 where these tags will need to be
-    explicitly allowed like any other tag.
-
 The policy object is the first argument of the sandbox constructor::
 
     $sandbox = new \Twig\Extension\SandboxExtension($policy);
diff --git a/src/ExpressionParser.php b/src/ExpressionParser.php
index dbbb89b80..fbedcc547 100644
--- a/src/ExpressionParser.php
+++ b/src/ExpressionParser.php
@@ -538,10 +538,6 @@ class ExpressionParser
 
     public function parseFilterExpressionRaw($node)
     {
-        if (func_num_args() > 1) {
-            trigger_deprecation('twig/twig', '3.12', 'Passing a second argument to "%s()" is deprecated.', __METHOD__);
-        }
-
         while (true) {
             $token = $this->parser->getStream()->expect(Token::NAME_TYPE);
 
diff --git a/src/Node/Node.php b/src/Node/Node.php
index 9e00f5cf0..d00c9e37d 100644
--- a/src/Node/Node.php
+++ b/src/Node/Node.php
@@ -54,10 +54,6 @@ class Node implements \Countable, \IteratorAggregate
         $this->nodes = $nodes;
         $this->attributes = $attributes;
         $this->lineno = $lineno;
-
-        if (func_num_args() > 3) {
-            trigger_deprecation('twig/twig', '3.12', sprintf('The "tag" constructor argument of the "%s" class is deprecated and ignored (check which TokenParser class set it to "%s"), the tag is now automatically set by the Parser when needed.', static::class, func_get_arg(3) ?: 'null'));
-        }
     }
 
     public function __toString(): string
diff --git a/src/Sandbox/SecurityPolicy.php b/src/Sandbox/SecurityPolicy.php
index 2735ccb57..337a3ad6e 100644
--- a/src/Sandbox/SecurityPolicy.php
+++ b/src/Sandbox/SecurityPolicy.php
@@ -83,13 +83,7 @@ final class SecurityPolicy implements SecurityPolicyInterface
     {
         foreach ($tags as $tag) {
             if (!\in_array($tag, $this->allowedTags)) {
-                if ('extends' === $tag) {
-                    trigger_deprecation('twig/twig', '3.12', 'The "extends" tag is always allowed in sandboxes, but won\'t be in 4.0, please enable it explicitely in your sandbox policy if needed.');
-                } elseif ('use' === $tag) {
-                    trigger_deprecation('twig/twig', '3.12', 'The "use" tag is always allowed in sandboxes, but won\'t be in 4.0, please enable it explicitely in your sandbox policy if needed.');
-                } else {
-                    throw new SecurityNotAllowedTagError(\sprintf('Tag "%s" is not allowed.', $tag), $tag);
-                }
+                throw new SecurityNotAllowedTagError(\sprintf('Tag "%s" is not allowed.', $tag), $tag);
             }
         }
 
diff --git a/tests/Extension/SandboxTest.php b/tests/Extension/SandboxTest.php
index 3011b40a0..d0eb498e1 100644
--- a/tests/Extension/SandboxTest.php
+++ b/tests/Extension/SandboxTest.php
@@ -88,8 +88,7 @@ class SandboxTest extends TestCase
         yield ['deprecated', '{% deprecated "message" %}'];
         yield ['do', '{% do 1 + 2 %}'];
         yield ['embed', '{% embed "base.twig" %}{% endembed %}'];
-        // To be uncommented in 4.0
-        //yield ['extends', '{% extends "base.twig" %}'];
+        yield ['extends', '{% extends "base.twig" %}'];
         yield ['flush', '{% flush %}'];
         yield ['for', '{% for i in 1..2 %}{% endfor %}'];
         yield ['from', '{% from "macros" import foo %}'];
@@ -99,28 +98,8 @@ class SandboxTest extends TestCase
         yield ['macro', '{% macro foo() %}{% endmacro %}'];
         yield ['sandbox', '{% sandbox %}{% endsandbox %}'];
         yield ['set', '{% set foo = 1 %}'];
-        // To be uncommented in 4.0
-        //yield ['use', '{% use "1_empty" %}'];
-        yield ['with', '{% with foo %}{% endwith %}'];
-    }
-
-    /**
-     * @dataProvider getSandboxedForExtendsAndUseTagsTests
-     *
-     * @group legacy
-     */
-    public function testSandboxForExtendsAndUseTags(string $tag, string $template)
-    {
-        $this->expectDeprecation(sprintf('Since twig/twig 3.12: The "%s" tag is always allowed in sandboxes, but won\'t be in 4.0, please enable it explicitely in your sandbox policy if needed.', $tag));
-
-        $twig = $this->getEnvironment(true, [], self::$templates, []);
-        $twig->createTemplate($template, 'index')->render([]);
-    }
-
-    public function getSandboxedForExtendsAndUseTagsTests()
-    {
-        yield ['extends', '{% extends "1_empty" %}'];
         yield ['use', '{% use "1_empty" %}'];
+        yield ['with', '{% with foo %}{% endwith %}'];
     }
 
     public function testSandboxWithInheritance()