Calibre 8.9: Improvements for Personal E-Book Collections

Calibre 8.9 has been released with a number of small but useful improvements aimed at making personal e‑book management and export more reliable and visually faithful.

Highlights

• Annotations browser: Results now show a color swatch next to annotations to make it easier to identify different highlight types.
• HTMLZ export: Support for embedded fonts in HTMLZ output, improving the visual fidelity of exported HTMLZ e-books.
• Device drivers & compatibility: Continued updates for Kobo and Tolino drivers, including options such as series-number templates for Kobo.
• Viewer & UI fixes: Faster opening of large EPUB files, improved highlight grouping, and accessibility tweaks (e.g., better scrollbar contrast in light mode).

The update is part of Calibre’s ongoing maintenance and feature refinements from its active open-source developer community. For full release notes and technical details, see the official “What’s New” page on Calibre:

https://calibre-ebook.com/whats-new

Note: This summary is based on the official release notes for Calibre 8.9.