Does 2018.2.0x mean the build is based on the latest beta?

Unity Engine
1

Does 2018.2.0x mean that the build is based on the latest beta? So is the prefab preview now based on version 2018.2.0b11?

2

It is based on beta 9

3

Will be there any more builds or will the 2018.3 beta replace them?

4

They say betas last until a release, then a new beta cycle starts. It’ll be 2018.3 soon.