Can I update from Catalina to Sonoma iOS please ?
Apps no longer function rite with older iOS
Question marked as
The following has information about upgrading to Sonoma, including compatibility requirements: How to upgrade to macOS Sonoma - Apple Support
If your Mac isn't compatible with Sonoma, reply with what type of Mac (e.g., MacBook Air, iMac, etc) and what model year it is (both of those things are available in Apple menu > About this Mac). With that information someone here can help with whether or not there is an upgrade to something else later than Catalina.