Fixed #26479 -- Added 'is not' operator to the if tag.

1 files changed, 14 insertions, 1 deletions

diff --git a/docs/ref/templates/builtins.txt b/docs/ref/templates/builtins.txt
index 37abc62608..e11646f6bb 100644
--- a/docs/ref/templates/builtins.txt
+++ b/docs/ref/templates/builtins.txt
@@ -432,7 +432,8 @@ Use of actual parentheses in the :ttag:`if` tag is invalid syntax. If you need
 them to indicate precedence, you should use nested :ttag:`if` tags.
 
 :ttag:`if` tags may also use the operators ``==``, ``!=``, ``<``, ``>``,
-``<=``, ``>=``, ``in``, and ``is`` which work as follows:
+``<=``, ``>=``, ``in``, ``not in``, ``is``, and ``is not`` which work as
+follows:
 
 ``==`` operator
 ^^^^^^^^^^^^^^^
@@ -526,6 +527,18 @@ Object identity. Tests if two values are the same object. Example::
       This will output if and only if value is None.
     {% endif %}
 
+``is not`` operator
+^^^^^^^^^^^^^^^^^^^
+
+.. versionadded:: 1.10
+
+Tests if two values are not the same object. This is the negation of
+the ``is`` operator. Example::
+
+    {% if value is not None %}
+      This will output if and only if value is not None.
+    {% endif %}
+
 Filters
 ~~~~~~~