We’ve just released ReSharper 4.5.1 Maintenance build, which you can download here, or read up on the Release notes first.
This maintenance release is a free upgrade to the licensed users of any 4.x version of ReSharper. To check your upgrade eligibility, please contact sales.at.jetbrains.com.
You might also like to check the new short demos at the ReSharper Overview page.
Keep developing with pleasure!
– JetBrains ReSharper Team