Visvanath Ratnaweera

> I installed Moodle 4.1 LTS with Git last February, but I didn't really understand Git at that time. For my initial update to 4.1.2+,

So the initial 4.1 LTS was a Git repo, downloaded as documented under https://docs.moodle.org/401/en/Git_for_Administrators#Obtaining_the_code_from_Git and then upgraded to 4.1.2+ as documented under https://docs.moodle.org/401/en/Upgrading#Standard_install_package, specifically,

1. Move your old Moodle software program files to another location. Do NOT copy new files over the old files.
2. Unzip or unpack the upgrade file so that all the new Moodle software program files are in the location the old files used to be in on the server. 

> How can I revert to a clean 4.1.2+ version thanks to git before proceeding with the update?

Now you want to be in the same 4.1.2+ but the code should be a Git repo again (not the unpacked zip file).

The lazy solution would be to a minor upgrade, as in 1) mode the code directory away and put a Git repo in its place as you did initially, i.e. https://docs.moodle.org/401/en/Git_for_Administrators#Obtaining_the_code_from_Git. The price you pay is, you will be on 4.1.current, which is 4.1.8 since 22 December.

Or do you have a compelling reason to be on 4.1.2+, not 4.1.8?

Ken

Time passing, I'll move forward my first site manually. The planned step is 3.9 LTS > 4.1 LTS. I've attached the list of additional plug-ins FYI. There'll be small changes moving to 4.1 LTS, for example Stream replacing Rebel. Other than that I'm positively surprised that almost all additional plug-ins are also available in 4.1 LTS.

P.S. How I generated the list of additional plug-ins:
 Re: How to easily see outdated or new strings in all plugins used on a Moodle site?

> Another test I can think of is to install moodle locally with a different email account server and perform the same tests.

We know that Moodle sends notification mail, in general! It is the specific server you/your IT need to debug. Control experiments do not help much, I'm afraid.

These resources must be static material. As an interactive learning platform Moodle gives priority to Activities. Anyway, the simplest answer is, have the resources external, means hosted somewhere else. On a web server, other platforms connected through LTI, embedding SCORM and many more.