Stabilize fcos 1.5.0

[prestist]

Pending #289

Following the steps found in https://coreos.github.io/butane/development/ re stabilization.

[bgilbert]

@tormath1 @7flying It'd make sense for us to stabilize flatcar 1.1.0 and r4e 1.1.0 also, so users of those distros can use the new features in the Ignition 3.4.0 spec. Does that work for you? Otherwise we'll bump flatcar 1.1.0-experimental and/or r4e 1.1.0-experimental to the Ignition 3.5.0-experimental spec.

[tormath1]

Hello @bgilbert, that makes sense yes, on the Flatcar side, we updated Ignition to 2.15.0 on the latest Alpha. If I understand correctly, we would have:
butane 1.0.0 -> ignition 3.3.0
butane 1.1.0 -> ignition 3.4.0
and a new butane 1.2.0-experimental -> ignition 3.5.0-experimental ?

[travier]

yes, that's the idea

[travier]

https://coreos.github.io/butane/specs/#butane-specifications-and-ignition-specifications

[tormath1]

Ok perfect - let me know if you want us to send a PR for Flatcar :)

[travier]

I think we'll do it together in a single PR for all specs

[travier]

CC @runcom for R4E

[7flying]

So in edge we have all the docs already asking the users to use the rfe variant at version 1.0.0 which targets Ignition 3.3.0.
We can stabilise 1.1.0 since the subset of options that we support is the same one as 1.0.0 has, unless there are some other implications that I'm not aware of.

[travier]

RHEL 9.2 will have Ignition 2.15 that will be able to use the 3.4.0 Ignition spec. Not sure how much of an improvement that is for R4E.

[7flying]

RHEL 9.2 will have Ignition 2.15 that will be able to use the 3.4.0 Ignition spec. Not sure how much of an improvement that is for R4E.

Is that Ignition 2.15 still able to handle Ignition spec 3.3.0 if we say r4e v1.0.0? If not I will have to notify the docs team

[bgilbert]

Yes. Stabilizing a new spec does not affect existing specs.