I've done tons of searching on this subject, and I'm unsure if this is possible to do properly
To date, i've tried unpacking a game, then unpacking the update and overwriting the unpacked game files with the update files, then made a new fake package with GenGP4 and Fake PKG Tools. This seems to work, and the resulting package indeed shows the correct version number. They wil upload fine to the PS4 and are installed without issue by the PS4 exploited with Vortex HEN 1.8. I tried this...
Merging FPKG updates into FPKG Games
To date, i've tried unpacking a game, then unpacking the update and overwriting the unpacked game files with the update files, then made a new fake package with GenGP4 and Fake PKG Tools. This seems to work, and the resulting package indeed shows the correct version number. They wil upload fine to the PS4 and are installed without issue by the PS4 exploited with Vortex HEN 1.8. I tried this...
Merging FPKG updates into FPKG Games