Inkscape released it's first stable build since 2010 last week. I've been compiling the developer branch on my home machine for some time, and using the stable version on my work machine. At work, I'll often use Inkscape to add illustrative flourishes to our CAD files. Inkscape's tiling tools and live path effects compliment AutoCAD very well. I've used it for radial brick patterning, batt insulation following curved walls and ceilings, and spray foam insulation and fireproofing. Also, certain drawing tasks involving organic shapes, like tracing civil plans, are much easier with Inkscape's curve editing and a pen tablet.
You can download the release on the Inkscape website. (Link.)
Here are the 0.91 release notes with screenshots (Link.)
Libre Graphics World has an interview with the lead developers. (Link.)
Tavmjong Bah's Blog is a great place to see what's in store for SVG and Inkscape. (Link.)