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Re: Upgrade from 1.9.3 to latest

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by Colin Fraser.  

No, not going to happen. Anything after v2.2.11 will not recognize any course from v1.9.x It will say the course is not a properly formed *.mbz file. Prior to v2.0, Backups were zip files, that changed after the database changed and while there is no significant difference between the compression formatting of either type of file, there are huge changes in the structure of the backups that render them unusable in the later versions of Moodle. After v2.6.x or so, there were, I understand, further changes to the database that make pre-v2.6 backups somewhat problematic, no idea why, but there have been some issues. 

The real problem is that the database has evolved from v1.9 to v2.0 now to v3.0 and there are significant shifts along the way. This is similar to changing from a v1.7 to a v1.9, you had to have a v1.8 in there, from what I can recall. 

Good luck... 

Oh..btw, you will need to go to the Legacy release page of the Moodle Download pages to get the versions you need. I suggest if you have a lot of courses, then read all the documentation closely before doing anything. There is also a number of Moodle Docs you can use to help you perform the updates. 


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