[thijsvandien]

In what way? I only just upgraded to Mojave from Sierra, and consider it now usable enough, even though there are still obvious, stupid bugs. I would be surprised if Catalina had fewer of those already.

[slipwalker]

Mojave security "enhancements" kept the imac's I/O ( even with a SSD ) crawling, with the beachball hanging even on the most trivial I/O operations.