This milestone has been over six years in the making. Crack is now usable for a wide variety of applications, and I've used it to build everything from quick and dirty file scanners to web applications, music software, an OpenGL FPS engine and an encrypted filesystem.
In keeping with semantic versioning, this release also marks the beginning of interface stability for the language. Any future 1.x releases should be backwards compatible with this one, so there's no longer any concern about the ground shifting out from under you when you write Crack code.
Massive thanks to the other primary contributors: Shannon Weyrick, Conrad Steenberg and Arno Rehn.