[account42]

So YAML is fine with breaking compatibility in minor version bumps?

[clcaev]

Semver was not yet common practice when 1.2 was released.

[account42]

https://yaml.org/spec/1.2.0/ says 2009

Not breaking backwards compatibility in a minor version bump of a data format was absolutely common sense in 2009.

[clcaev]

semver.org -- which did an amazing job popularizing this idea -- did not yet have its webpage up in July 2009 (archive.org has it in December)