Our ecosystem is tested before being updated, so everything should work fine. However, if something does break, we'll fix it fast! We also take a backup before your site is updated, providing a restore point to which we can rollback.
If you are on our Automated plan but have customisations that aren't included, any bugs that arise due to a software upgrade will incur an additional charge.
If you'd prefer that we cover the fixes to all core AND custom extensions, then the Semi-automated plan will be an even better fit for you.