Revise release date and beta feature note

Updated the release date and adjusted beta feature description.

Author: MarkvanMents

content/en/docs/releasenotes/private-platform/2.2.md

@@ -9,7 +9,7 @@ These release notes cover changes made to the [Private Mendix Platform](/private
 
 ## 2.2
 
-### Release date: December 12, 2025
+### Release date: December 22, 2025
 
 Version 2.2 of Private Mendix Platform introduces a number of updates and fixes.
 
@@ -20,7 +20,7 @@ Version 2.2 of Private Mendix Platform introduces a number of updates and fixes.
 Private Mendix Platform now offers support for [Maia-assisted app creation](/refguide/start-with-maia/). Other Maia capabilities, such as Maia Chat, are not included in this release.
 
 {{% alert color="info" %}}
-This feature is available as a private beta release, available to selected customers. For more information about beta releases, see [Release Status](/releasenotes/release-status/).
+This feature is available as a beta release, available to selected customers. For more information about beta releases, see [Release Status](/releasenotes/release-status/).
 {{% /alert %}}