Title pretty much says it all. Currently there is no way to cleanly move your BEF settings from Views 2.x to Views 3.x.

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Version:» 6.x-1.x-dev

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Status:Active» Closed (won't fix)

Clearing out the issue queue... The BEF 2.x and 3.x branches have diverged enough that implementing backward compatibility is a huge undertaking which I don't have the time for.

Unfortunately, the solution is to rebuild your BEF settings after you've migrated your views to 3.x. Sorry to not have a better option...