BookStack September 2026 Release Overview | v26.09

BookStack · Sep 24, 2026

Today we release BookStack v26.09, primarily aimed at introducing greater interface customization, along with API additions and other improvements.

► Update Blogpost: https://www.bookstackapp.com/blog/bookstack-release-v26-09/

► New WYSIWYG editor feedback: https://codeberg.org/bookstack/bookstack/issues/6130

► BookStack links: https://www.bookstackapp.com/links/

► My links: https://danb.me/links/

0:00 Intro and upgrade notices

0:47 UI layout preferences

2:44 Theme system custom blocks

4:38 Scroll progress indicator

5:34 API docs downloads & LLM usage

10:40 API endpoint additions

11:31…