As we have aggressively started working on Yate v10.0 we’ve come to the conclusion that we have to drop support for macOS 10.13. Largely this is due to all the reasons that that next release will drop support for 10.10 through 10.12.
We have to move to new SDKs and there are so many deprecations from 10.13 to 10.14 that we feel we can’t keep maintaining a single source.
Your purchased activation code is still valid and can be applied to any version of the application running on mac OS 10.14 or later.