This version provides a tethering jailbreak for the new iPhone 3GS with the updated bootrom from Apple. According to GeoHot's blog, these new features are included:
- Fixed 3G issues
- Tethered jailbreak for 3.1 OOTB ipt 8GB and new 3GS units
- Fixed Icy issues
- Both Windows and Mac
He also points out that "if you used RC1 with success," then there is no need to rerun Blackra1n RC2 on your iPhone or iPod Touch.
Updated October 26, 2009 at 6:05 a.m. PT: shawncpotter, one of our readers', asked for clarification on what "Tethered jailbreak for 3.1 OOTB ipt 8GB and new 3GS units" means. If own a specific late model iPhone 3GS and it loses power or needs to be rebooted for any reason, you must first tether it to a computer and use Blackra1n to turn it back on again.