XF 2.1 Correct upgrade sequence

[IgorG]

I have Xenforo 1.5.24 with XenForo Resource Manager and Xenforo Enhanced Search plugins installed (versions for XenForo 1.5.x).
Now I have to upgrade my forum to XenForo 2.1.x with corresponding versions of the same plugins with saving all data.
If I start the upgrade XenForo first, will it not break due to the fact that old versions of XenForo Resource Manager and Xenforo Enhanced Search plugins are installed? Or I have to remove these plugins before XenForo upgrade? But how all my resources data will be saved in this case?
Or my XenForo upgrade will go fine and then I just upgrade plugins and all my data will be saved?
What is the correct sequence?

 

[jeb35]

Upgrade to latest XF and then upgrade Resource Manager and Enhanced Search.

 

[IgorG]

Upgrade to latest XF and then upgrade Resource Manager and Enhanced Search.

Will the upgrade succeed despite the presence of incompatible versions of the plugins?

 

[jeb35]

Yes, you'll just get errors if you try accessing them without upgrading. At least that is what happened in ours.