No specific info about version 2.3. Please visit the main page of AppleScript Editor on Mac Informer.
Info updated on:
Script Debugger provides everything you need to quickly and easily author AppleScripts that work.
This app allows you to easily convert your AppleScripts into either HTML.
Flexibly schedule the execution of AppleScript, perl, and shell scripts, as well as Automator workflows and applications....
Creates an application bundle from an editable AppleScript source file.
Nils Liberg's KScript Editor is a freely available editor.
Script Debugger allows you to quickly and easily author AppleScripts.