Stable releases have been tested and used in our Beta channel which helps eliminate the chance you'll run into bugs. If you're not sure which releases to use, you should probably use Stable releases.
Stable patch
Hotfix
Stable release: 3D lighting, 3D model updates & more
Patch release
Stable release: 3D rotation, 3D editor improvements & more
Stable release: 3D editor; 3D bullets; additional Event Sheet Views & lots more
Another patch release