Update Doc/whatsnew/3.15.rst

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

Author: chris-eibl

Doc/whatsnew/3.15.rst

@@ -1944,7 +1944,7 @@ Build changes
   (Contributed by Donghee Na in :gh:`141770`.)
 
 * The official Windows 64-bit binaries on python.org__ are now using the new
-  :ref:`tail-calling interpreter <whatsnew314-tail-call-interpreter>` since Python 3.15.0a8.
+  :ref:`tail-calling interpreter <whatsnew314-tail-call-interpreter>`.
   (Contributed by Ken Jin, Brandt Bucher and Chris Eibl in :gh:`139922`.
   Special thanks go to Steve Dower for his assistance with the integration in the
   Windows release build process and to the MSVC team including Hulon Jenkins