Yep. I overlooked the questions that have been asked:
- there are no "none" and "regular" versions: it's just a change in the naming scheme for the same thing. There _is_ a difference between the Kindle and the Kobo versions, however. The "none" in the name is just part of the compiler architecture string.
- the changelog for the nightlies is the changelog of the sourcecode:
https://github.com/koreader/koreader/commits/master - some read rather technical, new features or fixed bugs should be recognizable, though.
Maybe it's time we do a formal release, though.