We are working on a dnn upgrade and was wondering if there is a specific upgrade path we should follow for the 2sx module.
Installed version is 8.12 Target Upgrade version is 14.07.04 (Latest)
Yes, that should work. I believe any pre-8.12 would need to go to the latest 8 to continue - but the installer would show you a warning.
This was just done to ensure that newer packages don't need the big parts of older upgrade code.
See also https://docs.2sxc.org/abyss/platforms/dnn/index.html