Apple has posted the new firmware for its second-generation Apple TV ahead of the device’s delivery to customers.
Based on the file name, AppleTV2,1_4.1_8M89_Restore.ipsw, the firmware appears to be a version of iOS 4.1.
Notably, the iPhone Dev-Team was able to use its SHAtter exploit to decrypt the keys used to block access to the Apple TV filesystem; according to Will Strafach, the new Apple TV OS is a “mashup of the old AppleTV OS and iOS,” and “all binaries are marked iPad-compatible.” Strafach suggests that existing add-ons for modified first-generation Apple TV units may work with little to no changes if compiled for ARM, while noting that “it seems all iOS frameworks” are present in the new firmware.