Version check for new stable release?

[RBoy]

Je consultais ce post sur l’utilisation d’une version spécifique :

How would I install a certain (old) version of Discourse

Checkout the same version of discourse_docker that you use on your other server, maybe copy your app.yml from the old server and make the necessary changes. Also in app.yml, change the version from tests-passed to either a tag (e.g. v2.5.0.beta7) or use a git commit hash.

Quand je regarde sur GitHub, je vois les branches stable ou tests-passed (pas des tags). Cependant, je vois un tag latest-release. Quelle est la différence entre stable (branche) et latest-release (tag) ?