We run tests on mac OS Mojave and it looks pretty OK. In our next update we have the full certification available for mac OS Mojave.
There is one new pop-up message which mac OS Mojave displays to the user once a month. Please see
here.
Well, yes, our applications are 32-bit applications and they ARE optimized and certified for mac OS Mojave and run without any restriction and with high performance. Just ignore this monthly message from mac OS Mojave.
The next mac OS release after mac OS Mojave will not run on 32-bit Mac-PCs anymore and requires a replacement of such a 32-bit Mac-PC by a 64-bit Mac-PC.
So far we have been able to support Mac OS with Wine for Mavericks, Yosemite, El Capitan, Sierra, High Sierra and Mojave (6 versions) and we try to find a solution that a future version of Notation Software covers this wide range of Mac operating systems including older versions. However, the final solution in one year from now is not finally clear and it may require an upgrade which is not a free upgrade.
Reinhold