Marco Arment has released a major update to his Instapaper offline reader application for iOS devices, making several UI and performance improvements and adding new sharing options. Instapaper 2.3 adds article preview text to the list view on the iPhone and iPod touch similar to that found in the iPad version, while also adding slightly longer preview text for the iPad. New indicators in the article listing now display the approximate length of each article as well as the relative progress using a row of dots. The iPhone version also adds support for toggling Dark Mode from within an article, and a new option is now available on both platforms to automatically switch the display to Dark mode at night based on the sunset times in the user’s area as determined by the device’s location. The update also adds several new sharing options including the ability to send links to OmniFocus and QuickReader as well as copy links or article text to the iOS clipboard. Other new features include performance improvements in the iPad version, simplified bookmarklet installation and the addition of an “ihttp” URL scheme for sending web pages to Instapaper without requiring the bookmarklet. Instapaper 2.3 is available from the App Store for $5.