Our current Ableton products have been tested and do work with Ableton 12.
For the packs using our script...
Our CSS_Sideshowfx script for Ableton 11 still works with Ableton 12
Copy the css_sideshowfx folder to the new Ableton 12 installation folder in the program Data
Copy it from: C:\ProgramData\Ableton\_OLD your Ableton Live Version_\Resources\MIDI Remote Scripts to this folder: C:\ProgramData\Ableton\Live 12\Resources\MIDI Remote Scripts then setup the midi ports in Ableton the same as Ableton 11 (refer to the pdf in your pack.