To alleviate confusion, why is the one that's being released to us being called "beta12" even though it's not the same build of the software that the alpha team has been banging on?

The one that rob accidentally put up -WAS- the same beta12 as the alpha team got. It's not what he intended to have up there.

He's going to release a later version when he can get the build worked out. Not beta12.
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Tony Fabris