Read the ATAG thread and a question hit me, will we get 4.5 autoupdated via steam despite sitting on 4.312 beta option in steam?
I imagine one has to be outside beta-program for 4.5 to automagically show up?
I think if you are already updated to 4.312 beta you should be ok. Reason is that if you are not now updated to 4.312 beta you can update through steam. Some how my install got screwed up about 6 months ago and I need to reinstall the beta and that was done through steam.
However, everything is subject to change.