Hydra has no stable version yet (indicated by the 0.x prefix). It’s ok to run it in production, but you need to be aware that there isn’t a thing such as an LTS, meaning that the newest changes and patches will always be on the latest version, never on a previous one. Let’s say there’s an issue introduced in 0.7.0. It might not be discovered until 0.8.0. The fix will not be released for 0.7.0, only for 0.8.0 as that is the current “stable” release.