Keep in mind that this is definitely Beta and different branches.
I’m using RTKExplorer.com binaries posted in RTKExplorer.com /downloads/rtklib-code/ as DEMO5.
Emlid version appears to have most upgraded versions, but the time corrections of last RTKExplorer binaries may not be there. (I don’t use time tags, so I would would watch out for possible time related effects after this change.) The latest version I have relates to improving realtime results. It seems to give better results on maintaining FIX in post-processing. I have not tried RTKNavi, so I don’t know if the improvements are there in realtime. I am using ReachView realtime which satisfies my needs.
One area that appeared to be improved in latest RTKExplorer was Combined forward-backward results. This is no help in realtime, but the data trend toward convergence and lock appears better in post-processing, so I don’t know why RTKNavi would not be be improved.
RTKLIB and RTKExplorer versions are similar , but not necessarily the same.