MyBB Merge System for 1.6.10 is now available from the MyBB website and is a maintenance update to the MyBB Merge 1.6 series.
This release is to ensure that users of the MyBB Merge System are able to upgrade and continue to use MyBB 1.6.10.
If you are using or looking to upgrade to MyBB 1.6.10 it is imperative you use this version of the Merge System.
Development Updates
The MyBB Team are working hard to create and update modules for the MyBB Merge System. More information is coming soon!
MyBB Blog 
But some plugins can stop functioning if I update?
There should be no issues if you’ve been keeping up to date with the releases.
Sure? And if I modified files (ex. reputation.pho) I’ll lose these midifications?
Yes to both. You should note down the changes you make.
I tryed to update yesterday and I get error 500
Please use the forums for support.
how can I Merge vbulettin5 to MyBB
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