The latest official release build is 1.5.0. I don't know what the process is for promoting an official build is.
The daily builds are done automatically though. The latest stable is there, listed as 1.6.0pre, so it should be fine, or you can even try the unstable development builds.
Yep - that's a great idea - a development build of 1.7 and the release of 1.6 - is anyone planning to upload them to the repo? Scummvm was still sitting at 1.5 last time I checked