Hi!
Our community is awesome so you have some good answers already, I’ll provide my official answers here FWIW;
How is codename scheme of PureOS?
Officially we use color names in alphabetical order.
- A = Amber = Stable
- B = Byzantium = Rolling release.
What are “Prometheus” and then “Hephaestus” as we see thoughout time on pureos.net front page?
These are just fun code names. They are the names of Greek gods from Mythology.
They are the actual code names for our releases. It’s an easy to remember shorthand. (See above.)
Are names in (2) codenames for ISO images while names in (3) codenames for releases?
Yes.
We should create a more detailed page. I’ll take that as a “To do” item.
Amber is, well, frozen in Amber aside from updates and fixes. It doesn’t really change. Byzantium is a rolling release. They don’t really have a planned lifespan or end-of-life yet. Amber probably has a two year span until its EoL but we don’t have a formal proposal for that.