I tried out a bunch of booth models that were advertised as ready to be uploaded to vrchat but when I import it like the uploader instructed (vrchat sdk, dynamic bones, shaders first) the model's dynamic bone script is missing and the animations are also not working. I'm guessing because I'm trying to upload them with the current unity version and they probably used the old 2018 version? If that's the case, how would I find out what exact version they were using? It's not listed in the readme.