calibre

Release: 8.13 [18 Oct, 2025]
New features
Virtual libraries: Allow defining their search expressions more comfortably in a multi-line edit box
Closes tickets: 2126881
Open with: On Windows launch the specified program via the windows API for executing programs to decouple it more thoroughly from the calibre environment
Bug fixes
Get books: Fix ebooks.com plugin
calibre-server: Fix CALIBRE_OVERRIDE_DATABASE_PATH not working
Export library: Dont use /tmp on Linux fixes export breaking with large FTS database on Linux distros that mount /tmp in RAM
Fix a regression in 8.11 that caused errors when trying to open a book from the full text search results while the search was still running
Closes tickets: 2126611
Improved news sources
Todoist
NZZ

Release: 8.12 [01 Oct, 2025]
New features
Tolino driver: Support for latest Tolino firmware 5.11.230427
Ollama AI: Allow setting arbitrary HTTP headers to send with every request
Bug fixes
Fix a regression in the previous release that broke conversion of HTML that does not parse as XHTML
Closes tickets: 2126569
Ollama AI: Fix configuration of custom URL not working

Release: 8.11.1 [26 Sep, 2025]
Windows: Fix regression in (8.11.0) causing conversion to be broken when metadata contains non-BMP characters
Closes tickets: 2125742
E-book viewer: Add an "Ask AI" tab to the dictionary lookup panel. Allows you to query AI about the currently selected text. [8.11.1]

Release: 8.11 [26 Sep, 2025]
New features
E-book viewer: Add an "Ask AI" tab to the dictionary lookup panel. Allows you to query AI about the currently selected text.
Preferences: Show the keyboard shortcut for each category in preferences in the tooltip
Closes tickets: 2122257
Bug fixes
E-book viewer: Fix modifying an existing highlight causing duplicates to be created in some books
Closes tickets: 2122747
E-book viewer: Fix very large e-books sometimes having a few non working links on Windows
PDB Input: Fix failure to convert some PDB files with sightly malformed headers
Closes tickets: 2123829
Fix error when trying to add the first icon rule to the Tag browser
Closes tickets: 2125438
E-book viewer: Fix Esc key not closing footnote popup when the popup has keyboard focus
Closes tickets: 2041848
E-book viewer: Fix placement of selection handles in some books when modifying an existing highlight
Windows build: Sign the .pyd DLLs in addition to the .dll DLLs
Improved news sources
New York Times
(省略されました)

Release: 8.10 [05 Sep, 2025]
New features
Book list: Allow controlling the tooltips displayed for every column using a template. Right click the column header and choose "Define tooltip template" to set the tooltip for that column
MTP driver: Allow creating format specific destinations for audiobook files
Closes tickets: 2121304
Preferences->Keyboard: Allow searching by shortcut as well as by name
Bug fixes
Kindle MTP driver: Fix APNX files being placed in incorrect location when books are sent to subfolders inside the root folder
Closes tickets: 2121737
E-book viewer: Read Aloud: Fix regression in previous release that broke changing voices when engine is set to 'Automatically select'
Closes tickets: 2121897
Fix a regression in the previous release that broke markdown output
Closes tickets: 2121701
Improved news sources
Harvard Business Review
Outlook Magazine

Release: 8.9 [22 Aug, 2025]
New features
Annotations browser: Add a color swatch in the results list to make seeing the type of highlight easier
Closes tickets: 2109496
Match books in library window: When doing the initial search using the title of the book on the device, if no matches are found remove trailing text in parentheses or after a colon and try again
Closes tickets: 2117322
When merging books via drag and drop show the cover of the target book
Closes tickets: 2118371
HTMLZ Output: Add support for embedded fonts
Closes tickets: 2120726
Plugin installation window: Allow filtering available plugins by category
Fetch news: Add a sub-menu to the right click menu of the Fetch news button that shows recently downloaded news sources
Closes tickets: 2119557
Bug fixes
Edit book: When pasting text from the clipboard ensure it is normalized to NFC form
Closes tickets: 2099740
Content server viewer: Improve the selection dialog for choosing a Text-to-speech voice
Closes tickets: 2109789
Content server: Fix an error when editing a book's metadata to change both the cover and another field
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Release: 8.8 [08 Aug, 2025]
New features
E-book viewer: Improve display of Lookup results from Google
Kobo driver: Add support for latest Tolino firmware
Conversion: Handle -epub-text-emphasis properties used in some Japanese language EPUB books
Piper Neural text to speech engine: re-write the backend used to run the Piper speech models to no longer need an external binary for improved performance and robustness
Closes tickets: 2117433
Bug fixes
Edit book: Reports: Fix sorting by name of CSS rules
Fix template based custom column of tags type not being treated as multi valued when using it for similarity searches
Closes tickets: 2118744
When adding books recursively do not try to import folder whose names named with an ebook file extension. These are, for example, generated by Apple Books
EPUB3 Output: Fix various issues with processing nav files when they contain more than just the Table of Contents and are not included in the spine.
Closes tickets: 2117255, 2117336
Improved news sources
Economist
Press Information Bureau
Indian Express
Wall Street Journal
(省略されました)

Release: 8.7 [18 Jul, 2025]
New features
Kindle driver: Add support for generating page number files (APNX) on 2024 and newer MTP based Kindles
When finding similar books by author ignore "et al." suffix on author names
Closes tickets: 2116804
Bug fixes
Fix a regression in the previous release that broke configuring Sending of books to device
Closes tickets: 2116864
Kobo driver: Fix a regression that caused ancient, pre-Touch kobo devices to no longer work with calibre
Closes tickets: 2117113
MTP driver: Workaround for LibMTP no longer returning device serial numbers on some systems
Edit book: Fix the next/previous buttons in the Text search tool not working
Fix series and publisher mapping rules not handling commas correctly when downloading metadata one book at a time
Closes tickets: 2116065
Edit metadata dialog: When there are only a few cusotm comments like fields stretch them vertically to take up unused psace
Improved news sources
New York Magazine
World Archaeology
Minerva Magazine
(省略されました)

Release: 8.6 [10 Jul, 2025]
New features
Content server: Add a checkbox in content server user preferences to prevent a user account from changing its own password via the web interface
Restoring database: Improve performance by an order of magnitude
Add a tweak to Preferences->Tweaks to permit displaying the sort value for series in the Tag browser
Welcome wizard: Change default output format to AZW3 for Kindle as MOBI is obsolete and all Kindles released within the last decade plus support AZW3
Add 'Search "not in"' and 'Filter "not in'" buttons to Manage authors and Manage Items
Bug fixes
Windows: Fix a regression in the previous release that caused terminal windows to popup momentarily when adding PDF files or converting them
Closes tickets: 2115246
E-book viewer: Fix a regression in 8.4 that broke fading of the background image
Closes tickets: 2115057
Tag browser: Fix clicking on categories to search for books by first letter of series not working correctly for non-English language books
Closes tickets: 2116006
Edit metadata individually: Ensure Next/Previous buttons work even if something re-orders the books in the book list. They will now iterate over the books as they were at the time the dialog is created
Closes tickets: 2115111
Windows: Generate catalog: Workaround for systems where a broken antivirus or similar holds open files in the catalog library causing a permission denied error
Closes tickets: 2115084
New news sources
(省略されました)

Release: 8.5 [20 Jun, 2025]
New features
The scrollbars used in calibre in light mode are now the same style as the ones in dark mode, this improves the contrast making the scrollbar more accessible
Kobo driver: add an option to change the how the Kobo displays series numbers using a template.
Manage data files dialog: Add a button to cancel remaining books when managing multiple books
Closes tickets: 2112424
Kobo driver: add support for new Tolino firmware
Bug fixes
Prevent Windows 11 from starting a conhost.exe process for every calibre worker process
Closes tickets: 2111559
E-book viewer: Improve highlight grouping with recurring chapter names
When sending emails to amazon and pocketbook use random English text instead of UUIDs for subject/body.
Closes tickets: 2110400
Improved news sources
NYTimes
WSJ
Financial Times
Eenadu
Fokus.se
(省略されました)

Release: 8.4 [09 May, 2025]
KEPUB Output: Add an option to generate KEPUB files that have better text justification at the cost of gaps in highlighting when used on the Kobo
Closes tickets: 2107778
E-book viewer: Allow the background image specified in the Style section of the viewer preferences to extend under the page margins as well
Bug fixes
E-book viewer: Fix a regression that broke the "show book in main calibre program" link
Closes tickets: 2110117
News download: Fix Next/Previous links not working when the pointed to article failed to download
E-book viewer: Handle links to missing internal files with an error popup rather than becoming non-functional
E-book viewer: Fix some links not being processed correctly for very large EPUB files with many internal HTML files
Get books: Update ebooks.com plugin for website changes
Metadata review dialog: Fix merging of tags not working correctly
Wayland: Workaround Qt/Wayland bug that prevents the menu of the Layout button from showing
Closes tickets: 2109755
Prevent recursion when creating base temporary folder if something on system deletes the created temporary folder
Closes tickets: 2109612
New news sources
Frieze Magazine by Kabonix
Improved news sources
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