• A document whose PDF is already downloaded now opens with it straight away, even when the server takes a while to answer. A small spinner next to the page count shows while the app checks the server for a newer copy, which replaces it if there is one
• A downloaded document whose details changed on the server, for example a new tag or title, is no longer downloaded again when you open it: the app asks the server whether the file itself changed and keeps its copy if not
• With "Entire library" offline browsing, the PDF of every document is now downloaded ahead of time, so documents open offline without ever having been viewed. The downloads run in the background and continue while the app is closed, stay on Wi-Fi unless "Sync over cellular" is on, pause when the device is low on storage, and are removed when you switch back to "Recently browsed". The Offline & Sync screen shows how many files are on the device and how many are downloading