upgrade - Which LTS version is supported? 18.04.1 or 18.04.2? both?

Source: https://ubuntu.com/about/release-cycle

The graph in that source page makes it look like Ubuntu 18.04.1 LTS (v4.15) will be supported for 5 years but Ubuntu 18.04.2 LTS will only be supported for 6 or 9 months.

Source: https://ubuntubudgie.org/blog/2019/02/15/18-04-2-lts-ubuntu-budgie-released

The LTS version is supported for 3 years while the regular releases are supported for 9 months.

^ I imagine that the LTS version they refer to is 18.04.1 and the regular releases they refer to is the 18.04.2, .3, etc.

1. Should I install 18.04.1 or 18.04.2?


2. If I'm on 18.04.2 and that LTS is only supported for 9 months, does that mean I need to do a sudo apt dist-upgrade to go to 18.04.3 in order to continue getting security updates?


3. If I'm on 18.04.1 and that LTS is supported for 5 years, does that mean I don't have to do a sudo apt dist-upgrade in order to continue receiving security updates?

Thank you