Pharan What version of Unity are you using? Are you still in Unity 4.3? 4.6? (do tell us why too) Up to the latest Unity version? Using a patch release?
Pharan What stuff? I just ran into world space particles throwing insane amounts of (false) error messages in 5.3.1. They fixed it in a patch release but I haven't downloaded it yet.
Recon 5.2.4 http://forum.unity3d.com/threads/unity-5-3-performance-issues.372648/ Plus it broke some of my assets, and my own custom editor tools... A few other issues as well. 5.2.4 no issues here at all. I talked to other developers that I work with and they have 5.3 issues, bugs etc as well. Some the same , some different..