@Ruskie_it: There's been no significant change to KUAL (or its packaging process) since the v2.7.3 snapshot (that one included). All changes up to 2.7.11 are documentation updates.
The 'old' one is 2.7/2.7.2.
@Antinoos: You don't need to clear the MRPI folder, the layout has never changed, and never will, and the binaries get updated no matter what

.
(Yes, that's unlike gawk, where you do need to manually delete the currently installed binary for the install button to actually show).