Calibre 9.9 Released With Improved EPUB Page Counting and Fedora SSL Fix

Calibre 9.9 brings improved EPUB page counting, fixes SSL certificate loading on Fedora Linux, retains search queries across virtual library tabs, and corrects metadata processing errors.

Calibre e-book management application interface showing EPUB page counting features
Calibre e-book management application interface showing EPUB page counting features

Calibre 9.9 is a software update for the Calibre e-book management application that introduces several functional improvements and bug fixes. The release addresses specific issues with EPUB page counting, search behavior across virtual library tabs, metadata processing, and SSL certificate handling on Fedora .

Calibre e-book management application interface showing EPUB page counting features
Calibre e-book management application interface showing EPUB page counting features

The update improves how fixed-layout EPUB files are handled by introducing more accurate page counting mechanisms.

The update improves how fixed-layout EPUB files are handled by introducing more accurate page counting mechanisms. The update improves EPUB page counting to help readers navigate fixed-layout books more accurately.

Calibre 9.9 retains search queries when users switch between virtual library tabs, provided the searching preferences allow it. The metadata downloader now ignores spacing around the colon separator for pasted ASIN and ISBN values, which reduces errors during bulk imports. Internal e-book viewer corrections fix search match offsets for non-BMP Unicode characters, ensuring accurate text highlighting.

The update includes a fix for SSL certificate loading issues on Fedora 44, resolving connectivity problems for users of that Linux distribution. The bulk metadata dialog now supports the backspace key in number input boxes set to undefined, improving usability during data entry. The content server properly applies null metadata when serving book files, preventing incorrect metadata display.

Kovid Goyal leads development of Calibre, a free e-book management application. This release also fixes SSL certificate issues on Fedora 44, corrects search match offsets for complex Unicode characters, and improves bulk metadata editing with backspace support in number fields.

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