Whats-New updates for v3.14.1 . (#6846)

* Whats-New updates for v3.14.1 .

* fix whatsnew

Author: stephenworsley

docs/src/whatsnew/3.14.rst

@@ -11,7 +11,6 @@ This document explains the changes made to Iris for this release
    :color: primary
    :icon: info
    :animate: fade-in
-   :open:
 
    The highlights for this minor release of Iris include:
 
@@ -46,8 +45,8 @@ This document explains the changes made to Iris for this release
    And finally, get in touch with us on :issue:`GitHub<new/choose>` if you have
    any issues or feature requests for improving Iris. Enjoy!
 
-v3.14.1 (Date TBD)
-==================
+v3.14.1 (05 Dec 2025)
+=====================
 
 .. dropdown:: v3.14.1 Patches
    :color: primary