AC800m upgrade from version 5.0.1/2 to 5.0.SP2
Voted best answer
Have you checked in the Release Note and User's Guide?
Transfer the project to the new version of CCB, open the project and allow CBM to upgrade the project, then try to download it to a SoftController and take things as they come.
You could in theory remain at old library versions, but then you have not upgraded, only changed to a newer version of the compiler. Sometimes a new compiler does not make any difference, sometimes new warnings will appear that did not exist (or where not checked) in the older version.
But I recommend with starting off with reading the release notes and upgrade section of the user's guides.