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These pictured versions of controllers now ship with a new firmware. 
Controllers always ship with the newest firmware. If you got yours before May 2024, it may be worth updating for some new cool functionality. Requires a Windows PC. Current version: FW 1.4
Version history:
August 25, 2023: 1.0 = Original firmware shipped from August 2023 to May 2024
May 13, 2024: 1.2 = New functionality PFL = channel page with instant trim as described below.
May 23, 2024: 1.3 = Bug fix related to rare occurence when switching modes
June 23, 2024: 1.4 = Bug fix for a rare occurence of 8 series not enumerating the controller if another usb controller was previously plugged in.
Improvements:
– Channel screen access
– Fader values are now stored in the controller on a reboot, and will begin from where they left off.
Current users of the above pictured controllers can update their firmware. For older version hardware such as TF2, TF2X mk1 (with the black square trim/fader toggle) and TF6 (grey enclosure / white trim/fader toggle), for now I am sorry, if I get the time I will look into it.
Also TF6 has gotten 6 custom midi entries instead of just 2.
Firmware package for Windows. Contains flashing tool, newest firmware files and instructions. It is not difficult, but requires a Windows PC. (Right click, save link as) follow the instructions in the readme.txt
Alternative wetransfer download link