Changelog for HACS plugin

So I have written custom frontend plugin for HACS. But I’m struggling to find a good way to present the changes between version.
I currently do it like so room-card/info.md at 6c0270d37d3c5512e257ae51f08e9dbd3a2e4ec3 · marcokreeft87/room-card · GitHub
But that obviously keeps me from doing minor versions > 9.

Does anyone here know a better way? I saw some plugins with a changelog.md, but will that only show the changes since your current version when you upgrade the plugin in HACS?