FireCore have released an update to Seas0nPass taking it to version 0.8.2.
Here is what they said:
Today we are happy to release a new version of Seas0nPass that simplifies the installation of older firmware versions. This process called ‘stitching’ allows Seas0nPass to utilize previously saved firmware signatures to jailbreak and restore an AppleTV version that Apple may no longer be signing.
What are signatures? Why do I need them?
Firmware signatures are required to install a particular firmware version onto iOS devices like the AppleTV. When installing the latest version, these signatures will be created in real-time during the iTunes restore process.
However, from time to time some firmware versions will stop being ‘signed’ by Apple, which will prevent them from being installed. Backing up your firmware signatures allows you to retain the ability to install an older firmware version in the future, should the need ever arise.
Firmware signatures are unique to each AppleTV and firmware version.
How do I get it?
As always, Seas0nPass is available as a free download from Seas0nPass.com.