I'm currently working on my "Küken engine", an OpenGL 3.1 ready real-time graphics engine but it's taking me quite some time.
Conscequently, GLM haven't changed much since 0.8.0 release excepted bug fixes that I still try to manage as soon as possible on the SVN repository. However, I was a bit unwilling to release new versions. Ninor versions had always bring something, few experimental extensions or ideas. Minor version 0.8.1 and 0.8.2 were just bug fixes...
To revolve my problem, I decide to add a patch number so that every release number will look like X.X.X.X by now.
Even if GLM doesn't provide something new, I feel good to have it working properly as soon as possible!