Calibre 8.4 Released: Enhancements in KEPUB Output and Bug Fixes for the Open-Source Ebook Manager

Calibre 8.4 has been released by developer Kovid Goyal, marking it as a significant maintenance update in the open-source and cross-platform ebook management software series that operates on Linux, macOS, and Windows.

One of the notable updates in this release is a workaround addressing a bug in Qt/Wayland on Linux, which previously prevented the menu for the Layout button from being displayed.

Key highlights of Calibre 8.4 include:

• An improved process for generating KEPUB files that enhances text justification, though this may cause gaps in highlighting when used on Kobo ebook readers.
• Support for extending the background image specified in the E-book viewer preferences under the page margins.
• Fixes in the E-book viewer that repair a regression affecting the “show book in main calibre program” link, resolve issues with links in large EPUB files, and manage links to missing internal files with an error pop-up.
• Enhanced tag merging functionality within the Metadata Review dialog.
• An updated ebooks.com plugin in the Get Books component.
• Corrections to the ‘Next’ and ‘Previous’ links in the News Download section.
• Introduction of Frieze Magazine as a new news source and improvements to existing sources like the NYTimes Book Review, Washington Post, Hindu, Economist, tagesschau, and Economist Espresso.

For more comprehensive details about the changes included in Calibre 8.4, users can refer to the official release notes. The software is available for download on the official website for 64-bit and AArch64 (ARM64) Linux systems, as well as for macOS and Windows. Additionally, Calibre can be installed as a Flatpak app from Flathub.

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