She obviously made a mistake in her version numbers, but I think she's also phrased her response poorly.<p><i>It‘s true that I could have made version 2.5 available through the legacy Sparkle updater. But maintaining two builds, one for the App Store and one with the serial number checks, was too time consuming for me. Precious time better spend on the actual update and my other apps.</i><p>The whole response lacks empathy for her users.