Getting Started with Sketch
The latest version of Sketch is Sketch 3 (version 3.3.3 to be exact), and this book assumes that you are running this version. If you have an older version, you will need to update it. As mentioned, Sketch is a Mac-only application, and it requires OS X (Mavericks) or later to run. If you are running an older version of Mac OS X, you will also need to update that.
To install Sketch, you must download it from the Bohemian Coding site directly. On December 1, Sketch announced that it was pulling the app from the Mac OS store. Citing issues with delays in timely approvals of updates and technical limitations imposed by the App Store guidelines, in a post on their website, Bohemian Coding outlined ...