About a week after releasing iOS 6.1, the company's got a slightly newer version for developers to test ahead of a public release.
An update designed to fix cellular problems on the iPhone 4S may have introduced a battery drain bug.
Supplemental update promises to fix cellular performance issues with the iPhone 4S, though did not go out to other models.
The first beta of iOS 6.1.1 doesn't block the popular new jailbreak, though Apple could be saving that feature for the final version.
What is fixed in QuickTime 6.1.1
Troubleshooting QuickTime 6.1.1: Replacement of the /etc/crontab
Silverlining 6.1.1 is coming; should fix a scanner conflict
AirPort Express Firmware reversion for 6.1.1 problems
Apple releases AirPort Express Firmware 6.1.1, AirPort Extreme Firmware 5.5.1
AppleShare IP 6.1.1 issues: ATTO card conflict; plug-in glitch and a work-around