The development of V2.4 has stopped I think... So this is the final version
Yes, Comodo has not said they will be releasing any more updates for the 2.4 series. Their main focus is the new 3.X series as well as their upcoming internet security suite, desktop utilities, and antivirus. They have a lot on their plate, and because not so many use Windows 2000 anymore as it is considered legacy, it is unlikely anymore patches will be released

Justin