Bring code developments from version 7 to 8

Hi,
I don’t see that there is a guide yet to help developers bring all the developments done for 7 to 8 as well.
Let me explain… in 8 how do you handle scehdulated jobs and where do you write them? Are EntryPoits still there? Is the use of Beans still valid?
I think there is a pattern missing that shows how to perform in version 8 what was done in 7, it is understood that the UI part is delegated to Angular but everything else?
Thanks