diff --git a/reference/constraints/CardScheme.rst b/reference/constraints/CardScheme.rst
index 9cc0db7f85d..873a49407dc 100644
--- a/reference/constraints/CardScheme.rst
+++ b/reference/constraints/CardScheme.rst
@@ -136,13 +136,8 @@ Valid values are:
 * ``LASER``
 * ``MAESTRO``
 * ``MASTERCARD``
-* ``UATP``
 * ``VISA``
 
-.. versionadded:: 4.3
-
-    The ``UATP`` number scheme was introduced in Symfony 4.3.
-
 For more information about the used schemes, see
 `Wikipedia: Issuer identification number (IIN)`_.
 
diff --git a/reference/constraints/Choice.rst b/reference/constraints/Choice.rst
index f927adafa6f..0b9bbcf343b 100644
--- a/reference/constraints/Choice.rst
+++ b/reference/constraints/Choice.rst
@@ -319,16 +319,11 @@ too many options per the `max`_ option.
 
 You can use the following parameters in this message:
 
-=================  ============================================================
-Parameter          Description
-=================  ============================================================
-``{{ choices }}``  A comma-separated list of available choices
-``{{ value }}``    The current (invalid) value
-=================  ============================================================
-
-.. versionadded:: 4.3
-
-    The ``{{ choices }}`` parameter was introduced in Symfony 4.3.
+===============  ============================================================
+Parameter        Description
+===============  ============================================================
+``{{ value }}``  The current (invalid) value
+===============  ============================================================
 
 message
 ~~~~~~~
@@ -367,16 +362,11 @@ too few choices per the `min`_ option.
 
 You can use the following parameters in this message:
 
-=================  ============================================================
-Parameter          Description
-=================  ============================================================
-``{{ choices }}``  A comma-separated list of available choices
-``{{ value }}``    The current (invalid) value
-=================  ============================================================
-
-.. versionadded:: 4.3
-
-    The ``{{ choices }}`` parameter was introduced in Symfony 4.3.
+===============  ============================================================
+Parameter        Description
+===============  ============================================================
+``{{ value }}``  The current (invalid) value
+===============  ============================================================
 
 multiple
 ~~~~~~~~
diff --git a/reference/forms/types/form.rst b/reference/forms/types/form.rst
index 3edb88667ef..a1ca199b420 100644
--- a/reference/forms/types/form.rst
+++ b/reference/forms/types/form.rst
@@ -157,8 +157,6 @@ of the form type tree (i.e. it cannot be used as a form type on its own).
 
 .. include:: /reference/forms/types/options/block_name.rst.inc
 
-.. include:: /reference/forms/types/options/block_prefix.rst.inc
-
 .. include:: /reference/forms/types/options/disabled.rst.inc
 
 .. include:: /reference/forms/types/options/label.rst.inc
diff --git a/reference/forms/types/options/block_prefix.rst.inc b/reference/forms/types/options/block_prefix.rst.inc
deleted file mode 100644
index f02feb0ce70..00000000000
--- a/reference/forms/types/options/block_prefix.rst.inc
+++ /dev/null
@@ -1,14 +0,0 @@
-block_prefix
-~~~~~~~~~~~~
-
-**type**: ``string`` or ``null`` **default**: ``null`` (see :ref:`Knowing which
-block to customize <form-customization-sidebar>`)
-
-.. versionadded:: 4.3
-
-    The ``block_prefix`` option was introduced in Symfony 4.3.
-
-Allows you to add a custom block prefix and override the block name
-used to render the form type. Useful for example if you have multiple
-instances of the same form and you need to personalize the rendering
-of all of them without the need to create a new form type.