- Import through one file picker. Android automatically recognizes PDF, Markdown, DRM-free reflowable EPUB and ordinary DOCX, with fewer duplicate controls.
- Back up and restore all four formats. Back up original imported textbooks together with their reading pagination and table of contents. Restore supports older PDF backups, skips identical files and preserves conflicting files. Damaged members are reported; archives without a complete recoverable textbook receive an explanation.
- Clearer downloads and updates. The website download button shows the version. Development builds no longer receive a prompt to install an older public release.
The new backup capability requires Android 5.4.3. Archives contain imported textbooks only, excluding account-wide data, lessons, notes, journals and bookstore content. Original files remain local and are not automatically synchronized to other devices. Restore uses the original account and does not accept desktop account transfer packages. Cloud in a browser still has no local textbook import or backup controls; shared interface updates arrive through the server. Google Play builds update through Play and remain in internal testing; this release does not announce a public Play launch.