Apple today released a new MacOS Ventura. Unlike last year's MacOS Monterey, MacOS Ventura only supports 2017 and updated Macs, and stops supporting Macs from 2014 to 2016.
Access:
MacOS Ventura compatibility column:
IMac (2017 and later models)
iMac Pro
MacBook Air (2018 and later)
MacBook Pro (2017 and later)
Mac Pro (2019 and later models)
Mac mini (2018 and later models)
MacBook (2017 and later models)
MacOS Monterey compatibility list
IMac - late 2015 and later
IMac pro - 2017 and later
MacBook Air - early 2015 and later
Macbook pro - early 2015 and later
Mac Pro - late 2013 and later
Mac mini - late 2014 and later
MacBook - early 2016 and later