diff --git a/doc/filters/spaceless.rst b/doc/filters/spaceless.rst
index 0e49515ad..bafd5a047 100644
--- a/doc/filters/spaceless.rst
+++ b/doc/filters/spaceless.rst
@@ -1,6 +1,10 @@
 ``spaceless``
 =============
 
+.. versionadded:: 2.7
+
+    The ``spaceless`` filter was added in Twig 2.7.
+
 Use the ``spaceless`` filter to remove whitespace *between HTML tags*, not
 whitespace within HTML tags or whitespace in plain text: