Some big changes have been in the works for the past few months. Greasemonkey is graduating to version 1.0 and making some big changes along the way. I believe version 1.0beta7 to be stable enough for testing. Please try it, we desperately want your feedback! But it's still a beta, please be careful.
For lots more detail, read the blog post I just made, and watch for upcoming topic-specific posts:
http://www.greasespot.net/2012/08/beta-greasemonkey-release-10beta7.html
Please report any bugs or issues at GitHub:
https://github.com/greasemonkey/greasemonkey/issuesOr reply to this mailing list with general feedback.