Hey Lotta,
Generally, our products should be compatible with the latest WordPress version because our development team is keeping up with the features that are being planned to be released and for this 5.0 update, the major one is Gutenberg.
Regarding Gutenberg, we have answered the compatibility concern previously in our News section you can see in the sidebar. Here's the article: https://theme.co/apex/forum/t/gutenberg-faq/40776
Just take note though that even with all that said, it's still best to test updates in a test or staging site because there might be un-catched bugs. You'll need to report this to us when you encounter an issue.
Thanks.