Maya 2009 Service Pack 1 is out
If you use Maya 2009, here is the service pack 1 released from autodesk website.?Autodesk Maya 2009 Service Pack 1 includes over 100 fixes for Autodesk Maya 2009 across several functional areas, including: Rendering, Assets, Animation and Rigging, Dynamics and Effects, Modeling, Python scripting and API.