Difference between System Platform 2023 P04 and 2023 R2?

Hi guys,

What is the current difference between Application Server 2023 P04 and Application Server 2023 R2?

I'm about to start a new project and was under the impression that 2023 R2 was the latest and greatest. Just found out about 2023 Patch 04.

I was under the impression that the versions went something like this, historically;

System Platform 2023 -> P01,P02,etc -> System Platform 2023 R2 -> System Platform 2023 R2 SP1 P01 (for example)

Now it seems they are two stand-alone products, so how may I determine what to use?