Kaleidoscope 2
Out of beta and ready for prime time, Kaleidoscope 2 is on the Mac App Store and available for purchase. Designer or developer, you need to have this tool in your toolbox.
I know first-hand how hard the team worked on this release. I was involved in the acquisition of Kaldeioscope and Versions from Sofa, and acted as lead designer and product manager on Kaleidoscope until my departure from Black Pixel a few months ago. I worked with some off-the-charts smart developers, and I’m genuinely thrilled to see them ship.