https://fpdownload.macromedia.com/get/flashplayer/updaters/23/playerglobal23_0.swc

https://helpx.adobe.com/flash-player/release-note/fp_23_air_23_release_notes.html

Authoring for Flash Player 23

To use the new Flash Player, you will need to target SWF version 33 by passing "-swf-version=34" as an extra compiler argument to the ASC 2.0 compiler.

Authoring for AIR 23 Update to the AIR 23 namespace

You must update your application descriptor file to the 23 namespace in order to access the new AIR 23 APIs and behavior. If your application does not require the new AIR 23 APIs and behavior, you are not required to update the namespace. However, we recommend all users start using the AIR 23 namespace even if you are not yet taking advantage of the new 23 capabilities. To update the namespace, change the xmlns attribute in your application descriptor to: