Mac users interested in Sketch 2.4 by bohemian coding generally download:
The most important part of any drawing application is arguably the drawing area, so we've just made Sketch contain one big and infinitely large view with no palettes to be seen. That doesn't mean we've compromised on the tools though. Sketch is a true vector editing application and has many powerful tools to manipulate those vectors.
Sketch has boolean operations that fully preserve your carefully constructed vectors down the individual curves.