Occasionally a change is made to the queue system record layout to accommodate new information. When this happens, the queue version number is updated. Whenever an instance of A-Shell is launched, it checks its own latest queue version number against that version number of the qflock.sys and jobtbl.sys files which are actually in use, and if they differ, you get this message. As the current users exit, the last one out will erase the qflock.sys and jobtbl.sys files, assuming there are no phantom or corrupted records in it. If they do not go away even after you are sure all users are out, you can erase them manually.

If you want to test a new version of A-Shell without interfering with people running an older version, then you can always specify a different miame.ini file on the A-Shell startup command line. (See -i switch to A-Shell in Launching A-Shell in this document.) Within that miame.ini file you can specify a different name in the QFLOCK parameter.