Here are the details of recent releases of TiddlyWiki5. See TiddlyWiki5 Versioning for details of how releases are named. Note that archived versions of release source files are available at https://github.com/Jermolene/TiddlyWiki5/releases
If you are using node.js, you can also install prior versions like this:
npm install -g tiddlywiki@5.1.13
(BetaReleases and AlphaReleases are listed separately).