[FEATURE REQUEST] Add support for Fedora 40

[ScriptAutomate]

Is your feature request related to a problem? Please describe.

Fedora 40 is currently in Beta, but the estimated release date of GA is April 2024 or May 2024. Creating this feature request ahead of time as a placeholder.

Describe the solution you'd like

Ensure that new AMIs are build to replace the Fedora 39 AMIs in CI/CD, and update documentation to add Fedora 39 as supported after confirming builds are LIVE.

Depending on timeline, this may supersede work done in:

• [FEATURE REQUEST] add support for Fedora 39 #65859

[ScriptAutomate]

Fedora 40 packages will be available in future releases of Salt. How this works:

• When a new operating system is introduced, official release packages do not become immediately available. Packages for the new operating systems become available at next point release of a branch they are introduced to.
• For immediate releases, there are nightly builds that do become available but should only be used for testing. For example:
  • 3006.x: https://repo.saltproject.io/salt-dev/3006.x/latest/salt/py3/fedora/40/
  • 3007.x: https://repo.saltproject.io/salt-dev/3007.x/latest/salt/py3/fedora/40/
  • master: https://repo.saltproject.io/salt-dev/master/latest/salt/py3/fedora/40/
  • There is an open issue in the install guide to have a dedicated page to nightly builds:
    • GitLab / salt-install-guide / Document how nightly builds of Salt work, and how users can install
• For officially supported builds, tied to a point release or major release, users have to wait until a new release is done (ex. 3007.1 and 3006.9 will be the next point releases for the currently supported major versions)
• ETA
  • No official ETA on upcoming point releases, though 3007.x should be seeing a new minor point release before 3006.x sees the next one
  • Salt v3008.0 LTS release is estimated for Fall 2024

[ScriptAutomate]

Salt v3007.1 STS was released today, and includes both Ubuntu 24.04 and Fedora 40 as newly supported operating systems:

• Ubuntu: https://docs.saltproject.io/salt/install-guide/en/latest/topics/install-by-operating-system/ubuntu.html
• Fedora: https://docs.saltproject.io/salt/install-guide/en/latest/topics/install-by-operating-system/fedora.html

Ubuntu 24.04 and Fedora 40 will have builds included in Salt 3006.x LTS when the next point release for v3006 happens (Salt v3006.9), and will also be included in Salt v3008 LTS (est. Fall 2024).

In the meantime, if wanting to test out the nightly builds built from either the 3006.x or master branch, can find some rough guidance here until a nightly process doc is officially published: https://gitlab.com/saltstack/open/docs/salt-install-guide/-/issues/86#note_1915018672

Closing this ticket as complete.