MacOS 14 and tvOS 17 will both be unveiled by Apple at WWDC, 

 but at this moment, there aren't any concrete rumors or conjecture regarding what either operating system will include.

that will be released alongside its typical fall product lineup. 

Although the rumor mill favors sharing news and leaks relating to hardware

rather than those dealing to software, there are still some alleged changes in the works.

Given that iOS 16 is the most recent version, it makes sense that Apple will use iOS 17 

According to some rumors, the annual refresh would focus more on performance