Is this thread obsolete? if not I have a few questions:
About the Add-on installation, version 0.5.3 [Import-Export Transport Fever (.mdl)]:
Blender 3.0.1 with a message: Upgrade to 2.8x required --> should I install an older Blender version, which? Change the script as above would work? Is this addon still in use? Is there a newest guide or addon to use/follow up?
Please I will appreciate your help and thank you for your videos. They are truly a good resource.