This update addresses the following:
- Fixes an occasional graphics glitch on iPod touch (4th generation)
- Resolves bugs related to activating and connecting to some cellular networks
- Fixes image flcker when using Apple Digital AV Adapter with some TVs
- Resolves an issue authenticating some enterprise web services
Direct download links below:
The update is available in iTunes. As always, do not update if you want to preserve your jailbreak.