Update documentation version metadata

doc/.doctor-rst.yaml

@@ -38,16 +38,16 @@ rules:
     yarn_dev_option_at_the_end: ~
 
     versionadded_directive_major_version:
-        major_version: 3
+        major_version: 4
 
     versionadded_directive_min_version:
-        min_version: '3.0'
+        min_version: '4.0'
 
     deprecated_directive_major_version:
-        major_version: 3
+        major_version: 4
 
     deprecated_directive_min_version:
-        min_version: '3.0'
+        min_version: '4.0'
 
 whitelist:
     lines:

doc/documentation_comments.rst

@@ -3,10 +3,7 @@
 Documentation Comments
 ======================
 
-.. versionadded:: 3.29
-
-    Documentation comments were added in Twig 3.29. This feature is
-    **experimental** and can change based on usage and feedback.
+This feature is **experimental** and can change based on usage and feedback.
 
 Documentation comments describe template constructs and variable bindings.
 Tools such as IDEs, static analyzers and documentation generators can read this

doc/templates.rst

@@ -649,12 +649,6 @@ exist:
     {# Stringable object (cast via __toString) #}
     {(uuid): 'token'}
 
-  .. versionadded:: 3.26.1
-
-      Support for arbitrary expressions as dynamic mapping keys
-      (attribute access, method calls, filter results, function calls,
-      and any ``Stringable`` object) was added in Twig 3.26.1.
-
   .. note::
 
       Inside a sandbox, the ``__toString()`` coercion goes through the
@@ -1170,10 +1164,6 @@ You can skip values by leaving a slot empty:
     {# only assign the second value #}
     {% do [, last] = ['Fabien', 'Potencier'] %}
 
-.. versionadded:: 3.29
-
-    Support for destructuring iterators was introduced in Twig 3.29.
-
 Sequence destructuring also works with iterators (any ``Traversable``
 value). Values are extracted in iteration order and keys are ignored. The
 iterator is consumed lazily: only as many values as there are slots in the