Fix versionchanged.

diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index 951e19c99b882bf5bc73396f81fa4f132492d58e..2a3445c5a37a97c302bc804e13b7bd1a9aef87e3 100644 (file)
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -621,7 +621,7 @@ they add the ability to access fields by name instead of position index.
    Named tuple instances do not have per-instance dictionaries, so they are
    lightweight and require no more memory than regular tuples.
 
-   .. versionchanged:: 2.7
+   .. versionchanged:: 3.1
       added support for *rename*.
 
 Example: