Hi, V5.1.416 is a stable build.
Interesting as I used the download link supplied in the Topic Post.
There was a request to test the "auto connect" feature. It was referred to as an "internal beta"
So I don't know.

Edit: It academic in any case as the Auto-connect works flawlessly.
It unfortunate there hasn't hasn't been an "Update Check" function added in the 'About Information' area during development.