Yes, it's very confusing. Here's what I understand.

If you presently have UltraPAK or higher, then you probably want the PlusPAK which adds just the new stuff.
If you have lower than UltraPAK, then I think you need either a full upgrade or just the program update (no additional content).

Xpro packs are compatible with the "Pro" (i.e., minimal) version.
Xtra packs need the UltraPAK.

If you have the Audiophile edition, then I think you can use either the "physical" that I presume includes everything on the PlusPAK which is only the new stuff.

Incidentally if you haven't yet, on the Upgrades page they have a matrix of the options and a mouse-hover the version boxes gives extra details. It helps. https://www.pgmusic.com/bbwin.packages.htm

PGM are not the only company where I've walked away because of the confusion over what I actually need.


Jazz relative beginner, starting at a much older age than was helpful.
AVL:MXE Linux; Windows 11
BIAB2025 Audiophile, a bunch of other software.
Kawai MP6, Ui24R, Focusrite Saffire Pro40 and Scarletts
.