Update readme.txt

Co-authored-by: Darin Kotter <darin.kotter@gmail.com>

Author: jeffpaul

readme.txt

@@ -98,7 +98,7 @@ Where ever you want it to show up.
 
 == Changelog ==
 
-= 1.6.0 - 2024-09-XX =
+= 1.6.0 - 2024-09-24 =
 
 **Note this version increased the WordPress minimum version to 6.1 and the PHP minimum version to 7.0.**