It has a cornucopia of features divided into the following main categories:
- Library Management
- E-book conversion
- Syncing to e-book reader devices
- Downloading news from the web and converting it into e-book form
- Comprehensive e-book viewer
- Content server for online access to your book collection
What's New:
Bug fixes
- Conversion: Transform styles: When using regular expressions fix substitution groups not working. Closes tickets: 1825764
- Fix a regression in the previous release that caused the conversion of HTML to text in comments when output to catalogs or converting downloaded metadata to behave slightly differently. Closes tickets: 1826654
- Edit book: Fix beautify not handling <colgroup> and <th> tags correctly. Closes tickets: 1826631
- DOCX Input: Fix cross-references using the 'fldSimple' markup not being recognized by calibre.
- EPUB/MOBI Catalogs: Fix a regression in the previous release that caused ampersands and middle-dots to appear as HTML entities in the output. Closes tickets: 1826127
- Prevent a malformed tweaks.json file from stopping calibre startup
- Fix a regression that broke completion for ebook-convert
- News fetching: Fix a regression that broke removal of attributes/javascript/srcset because of bugs in the new BeautifulSoup
- TXT Output: Fix Vietnamese  character being stripped from output. Closes tickets: 1825770
- E-book viewer: Fix specifying a non-existen location via --open-at causing viewer to hang
New news sources
- Magyar Nemzet by pofa
- Improved news sources
- Global Times
- Corriere della Serra
