v2026.5.0

Released 2026-11-08. It brings Contributors, sign-in links for people without a password, and waveforms for very long books.

What you can do

• Invite someone as a Contributor. Next to Listener, Member and Admin there is now Contributor: a person who listens like a
  member and can also add books. Their books go into a folder of their own inside the upload folder, and they can fix the details,
  look up the book online, change the cover and remove the books they added, never anyone else's. They add books only to a whole
  library (or the whole server) that was shared with them and where uploads are on. You can make a member a Contributor, or the
  other way round, on the person's page.
• See who added a book. Owners and admins get an "Added by" choice in the Library's Filter menu and a line on the book's page;
  a Contributor sees "You" and "Added by you" for their own books. Nobody else is told who added a book.
• Remove all the books a person added. On a person's page, "Books they added" shows how many there are, a link to see them in
  the Library and "Remove all their books". Tendshelf asks first, deletes only the files it placed for that person that nobody has
  changed, and tells you which books stayed and why.
• Get someone back in with a sign-in link. On a person's page, an admin can make a sign-in link that works once, for
  24 hours. It is for someone who never chose a password or forgot it: they open the link, confirm, and pick a new password
  within the hour. Making a new link ends the old one; the owner's account has no links. The sign-in page now says
  "No password yet, or forgot it? Ask whoever runs this server for a sign-in link." A person's page shows their username.

Fixed

• Books longer than 48 hours get a waveform. The player bar showed none for them; it now works for books up to 500 hours.

For people who package Tendshelf

• The Android app has an F-Droid recipe (android/fdroid/app.tendshelf.android.yml). It builds from the tagged source and
  checks the result against the signed APK on the release page. How to submit it is in docs/android.md.

Upgrading

This release uses database schema 35 (it was 33 in 2026.4.0). Before Tendshelf upgrades an existing database it writes a
verified copy to backups in the data folder, and an older program refuses a database made by this one.