I'm very confused on Magento's versioning, there are ones like 2.3.5-pX and 2.3.6, then the new 2.4.X series. What is the deal? I'm currently on 2.3.5-p1, is 2.3.5-p2 just security patches and 2.3.6 is features updates as well? How long is the 2.3.5-pX series going to be maintained for because I need to upgrade to 2.4? or even 2.3.6+? I've been searching for this information, but it seems ever since Adobe acquired Magento, the useful documentation has gone away.