First public beta.
Native support for Windows, MacOS and Linux.
And has a dark mode (so I'm sold).
More info and links here: https://mt.lv/winbox4
It seems to work pretty well, but some of the design choices, compared to WinBox 3 are a bit strange, especially the lack of grid lines.
Being able to pop out what used to be tabs into new windows is a pretty useful feature though.
