Upgrade & Migrate DesktopCentral Server

Upgrade & Migrate DesktopCentral Server

Our Desktop Central Server is running Build # 90145.  On a Server 2008 R2 x64.

We have two items to tackle.
1. Upgrading/Migrating Server 2008 R2 to a new Server 2012 R2 x64.
2. Upgrading Desktop Central.

Questions.
Do you have documentation on how to Migrate your Desktop Central Server from older Server 2008 R2 to a new 2012 R2 Server?

Can we upgrade from One build to a newer build during migration?  or would we have to upgrade prior to migrating?

Thanks,

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