Hi Marco, it will be released once the last area of work on it is complete. There will be a new beta within the next week though since the current beta expires middle of next month.
I'm almost done with the detailed object properties dialog, just a couple more annotation properties left to do. Here's what it looks like at the moment:
The main missing thing will exporting dimensions to DXF and PDF/AI formats won't be ready for this next coming v4 beta, so there will need to be one more after that still.