Rolling back to a previous Open Beta version on Steam

[Andy t]

Is it possible to rollback to an immediately previous/arbitrary open beta version when using Steam?

[ikonane]

I would also like to know this.

[QuiGon]

Is it possible to rollback to an immediately previous/arbitrary open beta version when using Steam?

I don't think so. With Steam you can only roll back to one of the ~4 versions offered in Steam. To roll back to any arbitrary version you would need the non-steam installation.