A little bit earlier this year – compared to version 2009 – Autodesk has released the first Service Pack for Inventor 2010. SP1 will patch any Inventor version (Suite or Professional) in any language. There is a separate SP1 for the 32-bit and 64-bit versions of Inventor 2010.
As always, read the README before you install the SP – e.g. it recommends to switch off Vista UAC for the installation.
You can download the SP1 for Inventor 2010 here.