When spring-boot releases a new minor/major release, update timefold-solver metadata there

[ge0ffrey]

When Spring Boot release a new minor/major version (think 3.3.0, 3.4.0, etc), we need to:

• test our latest release against it (with a CI job) and
• Update the compatibilityRange for timefold-solver with a PR here:
  https://github.com/spring-io/start.spring.io/blob/main/start-site/src/main/resources/application.yml#L137

This is not about when we make a release. For that, see: #516 instead.

But how do we get notified of that Spring Boot release?
Before of after their GA goes out?

Proposal A) Follow "GitHub milestone notification on our project"

Proposal B) When Dependabot comes to us.

[triceo]

Unresolved question: what do we do about the minimal supported version? Do we test against every Spring version every time they do a new release?

[ge0ffrey]

Yes, we have to. Every 3 months Spring Boot releases (spring every 6 months). But CI can reduce the maintenance cost for us. Dependabot will send us a PR anyway to upgrade main.

[ge0ffrey]

Spring Boot 3.2.0. was released on 23 November. It's unclear to me when they moved the default for start.spring.io to 3.2.0. Is that immediately or is there a time window there that gives us a bit more slack?