diff --git a/src/Symfony/Bundle/FrameworkBundle/CHANGELOG.md b/src/Symfony/Bundle/FrameworkBundle/CHANGELOG.md
index 8cdc2f57785c1..1cf5f7f10c733 100644
--- a/src/Symfony/Bundle/FrameworkBundle/CHANGELOG.md
+++ b/src/Symfony/Bundle/FrameworkBundle/CHANGELOG.md
@@ -18,6 +18,7 @@ CHANGELOG
    `workflow.state_machine`
  * Add `rate_limiter` configuration option to `messenger.transport` to allow rate limited transports using the RateLimiter component
  * Remove `@internal` tag from secret vaults to allow them to be used directly outside the framework bundle and custom vaults to be added
+ * Deprecate "framework.form.legacy_error_messages" config node
 
 6.1
 ---
diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
index 357b416e18591..2812bbc1f7d9a 100644
--- a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
+++ b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
@@ -237,8 +237,9 @@ private function addFormSection(ArrayNodeDefinition $rootNode, callable $enableI
                                 ->scalarNode('field_name')->defaultValue('_token')->end()
                             ->end()
                         ->end()
-                        // to be deprecated in Symfony 6.1
-                        ->booleanNode('legacy_error_messages')->end()
+                        ->booleanNode('legacy_error_messages')
+                            ->setDeprecated('symfony/framework-bundle', '6.2')
+                        ->end()
                     ->end()
                 ->end()
             ->end()
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/php/form_default_csrf.php b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/php/form_default_csrf.php
index 0c491714a05a9..1f2556a5cfcbe 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/php/form_default_csrf.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/php/form_default_csrf.php
@@ -2,9 +2,6 @@
 
 $container->loadFromExtension('framework', [
     'http_method_override' => false,
-    'form' => [
-        'legacy_error_messages' => false,
-    ],
     'session' => [
         'storage_factory_id' => 'session.storage.factory.native',
         'handler_id' => null,
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/csrf.xml b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/csrf.xml
index 97104d0571e52..53566a99ed449 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/csrf.xml
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/csrf.xml
@@ -8,7 +8,6 @@
 
     <framework:config http-method-override="false">
         <framework:csrf-protection />
-        <framework:form legacy-error-messages="false" />
         <framework:session storage-factory-id="session.storage.factory.native" />
     </framework:config>
 </container>
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_csrf_sets_field_name.xml b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_csrf_sets_field_name.xml
index 55616c2d6a7ad..19245eb18c542 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_csrf_sets_field_name.xml
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_csrf_sets_field_name.xml
@@ -9,6 +9,5 @@
     <framework:config http-method-override="false">
         <framework:csrf-protection field-name="_custom" />
         <framework:session storage-factory-id="session.storage.factory.native" />
-        <framework:form legacy-error-messages="false" />
     </framework:config>
 </container>
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_csrf_under_form_sets_field_name.xml b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_csrf_under_form_sets_field_name.xml
index cf88a085adc5e..d2147ae32db48 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_csrf_under_form_sets_field_name.xml
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_csrf_under_form_sets_field_name.xml
@@ -8,7 +8,6 @@
 
     <framework:config http-method-override="false">
         <framework:csrf-protection field-name="_custom_form" />
-        <framework:form legacy-error-messages="false" />
         <framework:session storage-factory-id="session.storage.factory.native" />
     </framework:config>
 </container>
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_default_csrf.xml b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_default_csrf.xml
index c2700a6b20a76..f698e9aa8bb5f 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_default_csrf.xml
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_default_csrf.xml
@@ -7,7 +7,7 @@
                         http://symfony.com/schema/dic/symfony https://symfony.com/schema/dic/symfony/symfony-1.0.xsd">
 
     <framework:config http-method-override="false">
-        <framework:form enabled="true" legacy-error-messages="false" />
+        <framework:form enabled="true" />
         <framework:session storage-factory-id="session.storage.factory.native" handler-id="null"/>
     </framework:config>
 </container>
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_no_csrf.xml b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_no_csrf.xml
index afb1869c5ab5d..facd62112d0e4 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_no_csrf.xml
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/form_no_csrf.xml
@@ -7,7 +7,7 @@
                         http://symfony.com/schema/dic/symfony https://symfony.com/schema/dic/symfony/symfony-1.0.xsd">
 
     <framework:config http-method-override="false">
-        <framework:form enabled="true" legacy-error-messages="false">
+        <framework:form enabled="true">
             <framework:csrf-protection enabled="false" />
         </framework:form>
     </framework:config>
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/full.xml b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/full.xml
index 00da2a6c0f963..b2f5473d7d7df 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/full.xml
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/xml/full.xml
@@ -10,7 +10,7 @@
         <framework:enabled-locale>fr</framework:enabled-locale>
         <framework:enabled-locale>en</framework:enabled-locale>
         <framework:csrf-protection />
-        <framework:form legacy-error-messages="false">
+        <framework:form>
             <framework:csrf-protection field-name="_csrf"/>
         </framework:form>
         <framework:esi enabled="true" />
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/yml/form_default_csrf.yml b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/yml/form_default_csrf.yml
index d6e9d77b93678..51a14623654be 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/yml/form_default_csrf.yml
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/Fixtures/yml/form_default_csrf.yml
@@ -1,7 +1,5 @@
 framework:
     http_method_override: false
-    form:
-        legacy_error_messages: false
     session:
         storage_factory_id: session.storage.factory.native
         handler_id: null