It’s been over 6 months with 3.5.1.. and now we have 3.5.2….
Not a major update: some security fixes, and a few added features in various plugins from WP.org like Askimet and Jetpack which are also updated.
UltimateTinyMice was updated too.
If really strange things happen, and persist, please describe the problem and admin will look into it. The WP.org base software is probably well tested by now… but new versions of plugins could potentially have a bug or two.