calibre

Release: 8.3 [17 Apr, 2025]
New features
Cover grid: Allow configuring different backgrounds for light and dark mode in Preferences->Look & feel->Cover grid
E-book viewer: Further speedup first open of large EPUB files by another 30%
Metadata review dialog: Add merge comments action
Bug fixes
Kobo driver: Fix viewing of KEPUB files from the device view in calibre not working
Fix a regression in 8.1 that broke displaying of the debug log when running in debug mode
E-book viewer: Fix a regression in 8.0 that caused the clock to display an extra p after the time
Closes tickets: 2106280
Improved news sources
GoComics
Internazionale
New York Times
SCMP
The Hindu
Barrons

Release: 8.2.1 [04 Apr, 2025]

Release: 8.2 [04 Apr, 2025]
New features
Kobo driver: Add support for new Tolino firmware
Kindle driver: Allow using a value of * in Preferences->Output options->MOBI Output to have the driver mark all books sent to the device as personal documents
Bug fixes
Kobo driver: Fix hyphenation and extra CSS added to KEPUB files being ignored by the renderer on the Kobo
macOS: Fix opening book folder or PDF files for books with square brackets in the title not working
Closes tickets: 2105884
Quickview: Fix a long standing bug with syncing of columns in the presence of hidden/re-ordered columns
E-book viewer: Show an error message when an invalid nearby search expression is used
Closes tickets: 2104850
KEPUB Output: Fix incorrect encoding detection for some HTML files without an encoding declaration
Closes tickets: 2105424
macOS: Fix a regression in the previous release that caused failures in the E-book viewer when updating annotations for books with a large number of annotations
Version 8.2.1 fixes an error when clicking on format links in the book details panel
Closes tickets: 2106205
Improved news sources
The Economist
Reuters
Private eye

Release: 8.1.1 [28 Mar, 2025]
Version 8.1.1 fixes a regression causing an error that does not affect functionality on startup on macOS

Release: 8.1 [28 Mar, 2025]
New features
Edit metadata dialog: Allow right clicking on the cover to edit it with an external program
Closes tickets: 2103833
Virtual library tabs: When the tabs are locked prevent them from being re-ordered as well
Closes tickets: 2104325
FreeBSD: Add support for connecting to devices, contributed by Guido Falsi
Bug fixes
macOS: Fix regression in previous release that caused calibre:// URLs to no longer work
Closes tickets: 2103949
macOS: Fix a regression in calibre 8 that prevented icons in menus from being rendered
Closes tickets: 2103777
Kobo driver: Fix hyphenation settings not being applied correctly when generating KEPUB to put on the device
KEPUB Output: Include leading whitespace in kobo sentence span tags. This prevents unsightly breaks when highlighting across formatted text on the Kobo
Closes tickets: 2103926
Content server: Fix FB2 books not readable via the in-browser viewer
Closes tickets: 2103846
Edit book: Add text narration: Fix preferred voice for language setting being ignored
E-book viewer: Use IPC to update annotations when calibre is running. Avoids possible loss of annotations in the Annotations browser due to db being locked
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Release: 8.0.1 [21 Mar, 2025]
Version 8.0.1 fixes a failure to start on systems where the user had previously installed the KoboTouchExtended plugin and disabled the builtin KoboTouch driver
Much improved Kobo support [8.0.1]
Connect to folder: Allow connecting a specific device [8.0.1]

See what's new in calibre 8.0
Release: 8.0 [21 Mar, 2025]
New features
Much improved Kobo support
calibre can now natively edit, view and convert KEPUB format files used by the Kobo. It also automatically converts EPUB to KEPUB when sending books to Kobo devices (can be configured by right clicking the kobo icon in calibre).
Connect to folder: Allow connecting a specific device
calibre can now connect to a folder and treat it as though it is a USBMS based device. This is useful particularly on Chromebooks where USB devices appear as folders rather than actual devices.
When completing names for fields that contain hierarchical data in prefix mode match prefixes after every period
Closes tickets: 2099780
ToC editor: Allow moving of multiple selected items in the Table of Contents
macOS: The calibre application icons in the dock are now displayed in a white frame to follow Apple's current recommended icon style
Kobo driver: Add support for new firmware on Tolino devices
Book details: Add option in to suppress author search links
Bug fixes
Fix a regression that broke tabbing to edit cells in the book list when some columns have been hidden or re-ordered
Catalog generation: Allow using templates that access the database for notes
Fix a bug when renaming authors to a name with commas in it
Full text search: Also index text in ZIP and RAR archives as these can be viewed by the calibre viewer
Closes tickets: 2100891
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Release: 7.26 [14 Feb, 2025]
New features
Allow specifying web search links that are used when clicking on item names in the Book details panel for custom columns via Preferences->Add your own columns
Content server: When clicking on author names in the book details page perform the same action as clicking it in the calibre program's Book details panel
Bug fixes
Fix a regression in 7.17 that caused various minor problems with editing metadata directly in the book list
Closes tickets: 2097677
Fix a regression in the previous release that broke conversion using Heuristics and TXT input documents
E-book viewer: Fix header/footer text size too small when using multiple monitors and the primary monitors DPI is much less than secondary monitor DPI
Closes tickets: 2097563
Fix series mapping rules in the metadata preferences not working
Closes tickets: 2097947
Fix setting custom icon for category doesn't work
Closes tickets: 2098133
Kobo driver: Fix a regression that broke working with very old Kobo devices
Closes tickets: 2092732
Improved news sources
Science Journals
Barrons
Allow setting custom icons for items in the Tag browser by right clicking on them and choosing "Manage icon for this value"

Release: 7.25 [07 Feb, 2025]
New features
Allow setting custom icons for items in the Tab browser by right clicking on them and choosing "Manage icon for this value"
Kindle driver: Allow import of KFX files from 2024 Kindles that use the MTP protocol
A new tweak in Preferences->Tweaks to control the East Asian language used when transliterating to English
Add an option to adjust the size of the link and note icons in Book details under Preferences->Look & feel->Book details
Bug fixes
Nook driver: Fix the Glowlight 4 not working on Windows
Closes tickets: 2068527
MTP driver: Fix Internal storage and SD card being swapped on some devices that have buggy firmware that assigns the SD card a lower id than the internal storage
Template dialog: Respect the tweak for title/series when editing save to disk and send to device templates
Closes tickets: 2096841
Content server: Fix icons for individual formats not being shown in the Tag browser
New news sources
Alternatives Economiques by Kabonix
Zerodeux by Kabonix
Afrique XXI by Kabonix
Orient XXI by Kabonix
Contretemps by Kabonix
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Release: 7.24 [10 Jan, 2025]
New features
Allow creating rules to transform series names in the Bulk metadata editor and Preferences->Metadata download
Closes tickets: 2091268
Conversion: Automatically set the page progression direction for books that do not have it set and have their primary language either Arabic or Hebrew
Content server: Book details view: Make calibre://show-book and calibre://view-book URLs in the comments work
Edit book: Spell check: Add a button to export the currently displayed list of words as a CSV file
Closes tickets: 2092496
Add from ISBN: Add a checkbox to automatically convert obsolete ISBN 10 to ISBN 13
Closes tickets: 2092483
Save single format to disk: Allow choosing the book cover as the format to save
Closes tickets: 2092395
Option to show a button to access all available actions from the status bar in Preferences->Look & feel->Main interface
Bug fixes
Read aloud: Fix no audio produced when text contains <3 and using the Windows legacy speech engine
Closes tickets: 2092948
Fix Tabbing while editing cells in the book list not always working
Closes tickets: 2092643
Windows build: Also sign the portable launcher exes
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Release: 7.23 [20 Dec, 2024]
New features
🎄 Happy holidays to everyone!
Content server: Allow managing the data files associated with a book by clicking the three dots in the top right corner of the book's page and choosing "Manage data files"
Closes tickets: 2091646
Edit metadata dialog: Allow right clicking on the cover to view it in a popup window at larger size
Closes tickets: 2091216
Add an option to expand the Tag browser tree to show the item that was current when the library was closed
Add import and export stored template to Preferences / template functions
Various Quality-of-Life improvements to the dialog used to edit columns with fixed sets of values
Resolve doi.org links when pasting identifiers
Closes tickets: 2091152
Bug fixes
Viewer: Fix some HTMLZ files not opening on some systems
Closes tickets: 2091451
Amazon metadata plugin: Update for changed markup for some books on amazon search results page
Closes tickets: 2091542
New news sources
Le Canard Enchaine by Kabonix
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