Works on any version after 0.8.3q

The line indicating the version compatibility will light up yellow with the inscription “Compatible game version” if your game version is different from the one for which the trainer was tested, but all basic functions were found to be functional. In this case, most likely Bare Mettle released a patch update that did not affect the functions required by the trainer, and in theory, it should be functional.

If you have detected incompatible functions, the trainer will display a warning window with non-working functions (Many of the others may depend on them), and the compatibility line will change to red with the inscription “Incompatible game version”.

Author's Discord - Horse4Horse

There is also a topic on fearlessrevolution, changelogs are posted there, there is activity, you can write requests for new functions. Link to the forum using the "Forum" button in the trainer itself, or through an Internet search.