iOS 4.2.1 Released

UPDATE: For those of you with Apple TV that were having issues saving 4.2 SHSH, I've fixed that bug with 4.21.01. Enjoy!

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UPDATE: Do not update to 4.2.1 for the baseband protection. TinyUmbrella is no longer able to kick you out of recovery for that version. TinyUmbrella still works for prior versions and will be able to restore and kick you out of recovery for those versions but 4.2.1 has a baseband version check that will stop your device from booting if your baseband was not updated.

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Apple has released iOS 4.2.1. For your convenience I have linked the individual versions below. Expect TinyUmbrella to be updated tonight for 4.2.1 support. Remember though, there is NO hurry to get your 4.2.1 SHSHs, encourage your friends to save their 4.1 SHSHs while they still can!
AppleTV2 4.2
iPad 4.2.1
iPod 2G 4.2.1 
iPod 3G 4.2.1 
iPod 4G 4.2.1
iPhone 3G 4.2.1 
iPhone 3GS 4.2.1 
iPhone 4 4.2.1

4.2b3 Support

I've updated TinyUmbrella to work with 4.2b3 for all relevant devices. Clicking Save SHSH will grab 4.2b3 now for your device. Also added a few bug fixes etc.
Unless I've stated otherwise, I have not verified iTunes 10.1 support. So upgrade at your own risk/peril.

iOS 4.2 is coming...

A couple new features and a few bugfixes coming for 4.1.13. (The device list will scroll finally). With 4.2 looming, make sure you and your friends have their 4.1 SHSH saved. Running TinyUmbrella with the default options for your device will ensure Cydia and you have your SHSHs saved.