diff --git a/src/Symfony/Component/Security/CHANGELOG.md b/src/Symfony/Component/Security/CHANGELOG.md
index b6d47712bd..6af6cf215b 100644
--- a/src/Symfony/Component/Security/CHANGELOG.md
+++ b/src/Symfony/Component/Security/CHANGELOG.md
@@ -6,6 +6,7 @@ CHANGELOG
 
 * Removed `Argon2iPasswordEncoder`, use `SodiumPasswordEncoder` instead
 * Removed `BcryptPasswordEncoder`, use `NativePasswordEncoder` instead
+* Removed the `has_role()` function from security expressions, use `is_granted()` instead.
 
 4.3.0
 -----
diff --git a/src/Symfony/Component/Security/Core/Authorization/ExpressionLanguageProvider.php b/src/Symfony/Component/Security/Core/Authorization/ExpressionLanguageProvider.php
index 029c96db8f..449dbce618 100644
--- a/src/Symfony/Component/Security/Core/Authorization/ExpressionLanguageProvider.php
+++ b/src/Symfony/Component/Security/Core/Authorization/ExpressionLanguageProvider.php
@@ -53,16 +53,6 @@ class ExpressionLanguageProvider implements ExpressionFunctionProviderInterface
             }, function (array $variables) {
                 return $variables['trust_resolver']->isRememberMe($variables['token']);
             }),
-
-            new ExpressionFunction('has_role', function ($role) {
-                @trigger_error('Using the "has_role()" function in security expressions is deprecated since Symfony 4.2, use "is_granted()" instead.', E_USER_DEPRECATED);
-
-                return sprintf('in_array(%s, $roles)', $role);
-            }, function (array $variables, $role) {
-                @trigger_error('Using the "has_role()" function in security expressions is deprecated since Symfony 4.2, use "is_granted()" instead.', E_USER_DEPRECATED);
-
-                return \in_array($role, $variables['roles']);
-            }),
         ];
     }
 }
diff --git a/src/Symfony/Component/Security/Core/Authorization/Voter/ExpressionVoter.php b/src/Symfony/Component/Security/Core/Authorization/Voter/ExpressionVoter.php
index e35583555d..b91b83af92 100644
--- a/src/Symfony/Component/Security/Core/Authorization/Voter/ExpressionVoter.php
+++ b/src/Symfony/Component/Security/Core/Authorization/Voter/ExpressionVoter.php
@@ -33,25 +33,8 @@ class ExpressionVoter implements VoterInterface
     private $authChecker;
     private $roleHierarchy;
 
-    /**
-     * @param AuthorizationCheckerInterface $authChecker
-     */
-    public function __construct(ExpressionLanguage $expressionLanguage, AuthenticationTrustResolverInterface $trustResolver, $authChecker = null, RoleHierarchyInterface $roleHierarchy = null)
+    public function __construct(ExpressionLanguage $expressionLanguage, AuthenticationTrustResolverInterface $trustResolver, AuthorizationCheckerInterface $authChecker, RoleHierarchyInterface $roleHierarchy = null)
     {
-        if ($authChecker instanceof RoleHierarchyInterface) {
-            @trigger_error(sprintf('Passing a RoleHierarchyInterface to "%s()" is deprecated since Symfony 4.2. Pass an AuthorizationCheckerInterface instead.', __METHOD__), E_USER_DEPRECATED);
-            $roleHierarchy = $authChecker;
-            $authChecker = null;
-
-            if (!method_exists($roleHierarchy, 'getReachableRoleNames')) {
-                @trigger_error(sprintf('Not implementing the getReachableRoleNames() method in %s which implements %s is deprecated since Symfony 4.3.', \get_class($this->roleHierarchy), RoleHierarchyInterface::class), E_USER_DEPRECATED);
-            }
-        } elseif (null === $authChecker) {
-            @trigger_error(sprintf('Argument 3 passed to "%s()" should be an instance of AuthorizationCheckerInterface, not passing it is deprecated since Symfony 4.2.', __METHOD__), E_USER_DEPRECATED);
-        } elseif (!$authChecker instanceof AuthorizationCheckerInterface) {
-            throw new \TypeError(sprintf('Argument 3 passed to %s() must be an instance of %s or null, %s given.', __METHOD__, AuthorizationCheckerInterface::class, \is_object($authChecker) ? \get_class($authChecker) : \gettype($authChecker)));
-        }
-
         $this->expressionLanguage = $expressionLanguage;
         $this->trustResolver = $trustResolver;
         $this->authChecker = $authChecker;
diff --git a/src/Symfony/Component/Security/Core/Tests/Authorization/ExpressionLanguageTest.php b/src/Symfony/Component/Security/Core/Tests/Authorization/ExpressionLanguageTest.php
index 2950d3feff..0e0e97dac6 100644
--- a/src/Symfony/Component/Security/Core/Tests/Authorization/ExpressionLanguageTest.php
+++ b/src/Symfony/Component/Security/Core/Tests/Authorization/ExpressionLanguageTest.php
@@ -83,30 +83,4 @@ class ExpressionLanguageTest extends TestCase
             [$usernamePasswordToken, "is_granted('ROLE_USER')", true],
         ];
     }
-
-    /**
-     * @dataProvider provideLegacyHasRole
-     * @group legacy
-     */
-    public function testLegacyHasRole($expression, $result, $roles = [])
-    {
-        $expressionLanguage = new ExpressionLanguage();
-        $context = ['roles' => $roles];
-
-        $this->assertEquals($result, $expressionLanguage->evaluate($expression, $context));
-    }
-
-    public function provideLegacyHasRole()
-    {
-        $roles = ['ROLE_USER', 'ROLE_ADMIN'];
-
-        return [
-            ["has_role('ROLE_FOO')", false],
-            ["has_role('ROLE_USER')", false],
-            ["has_role('ROLE_ADMIN')", false],
-            ["has_role('ROLE_FOO')", false, $roles],
-            ["has_role('ROLE_USER')", true, $roles],
-            ["has_role('ROLE_ADMIN')", true, $roles],
-        ];
-    }
 }