Looks like it is a flow redsn0w 0.9.7 beta versions since the past day. The redsn0w 0.9.7 b3 has been released by Dev Team now. Redsn0w 0.9.7 b3 version fixes some more bugs like the issues related to non-GUI programs which were experienced by the testers while using beta 2 version. Redsn0w 0.9.7 b3 should cover bugs related to things like Facetime, Winterboard themes, and embedded videos in iTunes.
But, the cautions of using this still remains as the before ones. And this release is mainly for testers only. The jailbreaking instructions using redsn0w 0.9.7 b3 are same as the before beta versions.
Download Redsn0w 0.9.7 b3 for Mac from here