We just waited until the excitation about Dotclear's 10th birthday started to die down to give you the possibility to update to version 2.5.2.
You will find a number of bug fixes and technical and ergonomic improvements[1]; talking about ergonomics, there's a lot of work going on about that for the future 2.6. We'll talk about it again soon.
Many people who have replied to our call to test this version. You are very precious to us, many thanks!
The possibility to update your installation should have appeared on your dashboard. There's also a patch for the developers who prefer this method.
We're already working on the future 2.5.3, which will hopefully be available some time in September.