Bsurfaces is an amazing modeling and retopology add-on for Blender. It previously sold for $39 with the promise that it would be released as GPL later on. That day is now!

Eclectiel writes:

For those who were waiting for Bsurfaces v1.5, I'm glad to announce that it has been released :) . It's meant to work well with Blender 2.63 (official). It can be downloaded and there is a quick help guide describing the different features at www.bsurfaces.info . Enjoy!

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