All customers who installed APPX Release 5.0.0 or 5.0.1 are urged to upgrade to the newest release for their particular platforms. Those first two releases in Version 5.0 should not be run in production environments, at the risk of potential data loss. The procedure to upgrade from APPX 5.0.0 or 5.0.1 requires the following additional steps:

1. Before upgrading, you must run a special utility in each application on your system. Use Option-99 from within Application Design to run the following job:
   Application: 0AD (that starts with a numeric zero, not the letter O)
   Version: 00 (zero-zero)
   Database ID: (leave blank)
   Process Type: JOB
   Process Name: SELECT (UPDATE CHILD AUTO UPD)
   

2. Before installing 5.0.2, the following files need to be scratched:
   

   <appxpath>/0SA/Data/SCTRACK.dat
   <appxpath>/0SA/Data/SCTRACK.key
   <appxpath>/0SA/Data/SCNOTE.dat
   <appxpath>/0SA/Data/SCNOTE.key
   <appxpath>/0SA/Struct/SCTRACK.dat
   <appxpath>/0SA/Struct/SCNOTE.key
   You can scratch them from the command line, or by using the Scratch Files option (for only those two files, SCTRACK and SCNOTE) in System Administration File Management.

3. After installing 5.0.2, use System Administration File Management to re-create the following files:
   SCTRACK
   SCNOTE
   You can simply run Create Files for all of the System Administration files - APPX will only create those that are missing.

All customers who are upgrading from APPX 5.0.2 (or earlier 5.0 releases) to APPX 5.0.3 or later must also scratch and re-create the SCNOTE and SCTRACK files, as in steps 2 and 3 above.