Draw Something for Lumia Windows Phones has been updated to match the version the official app is currently on for all other handsets. Unfortunately a changelog isn't available (as usual with most apps and games), but it's believed the latest release, version 1.0.13 fixes bugs that saw the game freeze when waiting for opponents to guess the drawing, and more.
The paid edition of Draw Something saw the updated being rolled out last week. Nokia offers Draw Something for free (but is ad-supported) in its collection of OEM apps.
You can download Draw Something from the Nokia Collection on the Windows Phone Store. Thanks everyone who tipped us!