I can confirm that the artboard border is still there in v1.6.0 and is very confusing, as it doesn't appear on every artboard (I've set the top 3 artboards to the same background color to demonstrate this). As seen in attachement 2, even a simple rectangle element with no stroke placed inside an artboard seems to have blurry edges on top and bottom. Those blurry edges don't appear in exported formats such as png, but are still confusing whilst designing. I'm using macOS High Sierrra 10.13.1 on a MacBook Pro 13-inch Late 2013 with an LG 34UC98 Display. Is there any current solution to this or will we have to wait for another update?