Moseszi Unfortunately, at that time we did not keep track of the version of the runtime by branch, and we did not keep track of which commits corresponded to which version, so we are not sure which commits corresponded to 3.2. The oldest branch in the spine-runtimes repository is 3.5, and upgrading a Spine project from 3.2 to 3.5 should not be much difficult. I think it would be better to upgrade your Spine project.