Earlier today, Apple discreetly released firmware 3.1.3 for the iPod touch and iPhone, including the following changes:
- More accurate battery readings on iPhone 3GS
- Fixed bug which caused applications to crash when using the Japanese Kana keyboard.
- Fixed bug which did not allow third-party applications to launch.
In short, this is a very minor upgrade. You should feel virtually no obligation to upgrade. However, if you choose to, be warned. We have received isolated reports that redsn0w 0.9.2 works on the iPhone 2G. If any experimenters would like to try this out, please inform us as well.
edit/ News from the Dev Team on jailbreak redsn0w compatibility here. To summarise: iPhone 3GS, iPod touch 3G, iPod touch 2G MC (not older models) and iPhone 3G users who need an unlock should avoid the new 3.1.3. OS. Other models should be okay. Reportedly blackra1n doesn’t work with 3.1.3 and GeoHot hints at such in his latest blog post.