Sketch 3.7 is an important update for Sketch. It introduces an all new version of Symbols: “In version 3.7 we’ve finally taken that step. A radical departure from the old version; Symbols are now very much like Artboards and they occupy one central place in your document. Instances of Symbols are no longer groups which you can edit directly, but are instead single layers that just mirror the content from their master. If you’ve ever accidentally ruined your carefully created Symbols because you moved a layer that you hadn’t realized was part of a Symbol, you’ll be happy to know that this is now a thing of the past…”