Hi Michiel,
My current bitnmi gc moodle ver is 2.9. I cannot upgrade to ver 3.7 directly, moodle will throw error saying i must upgrade to 3.2 first (https://docs.moodle.org/en/Upgrading). So i have no choice but to do the upgrade to 3.2 manually first. Then from 3.2 to 3.7, i will create the latest binami moodle.
Actually, today i just managed to upgrade to 3.2 already, using Bitnami Moodle stack 3.2.3 and Moodle v3.2.1.
However, i have some uncertainties regarding updating of the folders in /mod. The new moodle have folders in /mod, my existing moodle (lets call it old moodle) also have folders in /mod. Should i :
(1) remove all the new folders and have only the old folders in /mod; or
(2) transfer only old folders that do not exist in the new folders?
I also have similar question for the folders for /theme.