Updated changelog. Set version number

Author: toniginard

html/CHANGES.txt

@@ -4,6 +4,26 @@ More information on each of the fixes can be found in the project
 development home at https://github.com/projectestac/agora
 
 
+Changes 23.09.27
+---------------------------------------------------------------------------------------
+MOODLE
+- Upgraded Moodle to version 4.1.5+
+- Updated langpacks
+- Hot Potatoes: Upgraded module
+- Hot Potatoes: Upgraded question format
+- local_oauth: Upgraded module
+- Questionnaire: Upgraded module
+
+NODES
+- Allow six versions of each post instead of three
+- Updated translations for email-subscribers and getwid
+- email-subscribers: Customized not-localized string
+
+PORTAL
+- Home page: Removed confusing message
+- Removed old code based on Zikula
+
+
 Changes 23.07.10
 ---------------------------------------------------------------------------------------
 MOODLE