Download: XTension v9.4.13 (build 994) 11/25/2018
zipfile md5 = 35f604a3ed4658d95da0e142c0a676b6
NOTE as of version 9.4.14 the minimum system version has increased to 10.10
This version of XTension is the first to officially support OSX 10.14 Mojave. There are several caveats and potential issues you should be aware of before upgrading. I have summarized them on the Mojave Support Page.