It's only been three weeks since the previous update and the project lanza Caliber 8.11, a stable version that reinforces its proposal as e-book manager and viewer Open source and cross-platform. This release focuses on new features, fine-tuning, and a battery of fixes that are noticeable on a daily basis.
The most talked-about new feature is Ask AI, integrated directly into the reader's dictionary lookup panel, but there are also minor improvements and fixes affecting everything from format conversion to viewer behavior. All of this maintains Calibre as a powerful tool. free and very versatile to organize, convert and read e-books.
What's New in Caliber 8.11
The most visible addition in this version is the new Ask AI tab in the dictionary search panel. With it, the user can launch queries on the highlighted text and receive explanations or context without leaving the reader. The feature is flexible and supports cloud and local providers to adapt to each use case, something that adds to small usability tweaks already improvements in news sources integrated.
Ask AI: How it Works and Privacy
In version 8.11 of Calibre a feature called has been added Ask AIThis feature appears as a new tab in the book viewer panel, next to the dictionary search. Its idea is simple: when you select a piece of text within a book, you can ask an AI model about what you've highlighted. The AI ​​can, for example, summarize, explain, or provide additional context.
By default, Calibre doesn't connect to any external services: the feature remains inactive until the user configures an AI model provider. You can use both online services—such as Google, OpenRouter, or GitHub—and local models installed on your computer using Ollama. This makes the integration quite flexible and supports a wide variety of models, many of which are free.
Improvements to the e-book viewer
The book viewer has received several fixes aimed at improving accuracy and reducing minor reading friction. Selections and highlights are now handled more consistently, and footnote behavior has been refined, in addition to resolving problematic links in large volumes. Overall, this improves the reading experience. more stable and fluid, and remember the experiments with browser assistants.
- Fixed the position of selection handles when modifying an existing highlight.
- The Esc shortcut closes the footnote popup again when it has keyboard focus.
- Prevents duplicates from being created when editing an already created highlight in some books.
- In very large books, unresponsive links now work normally.
Other fixes and changes in Calibre 8.11
Various bugs outside the viewer have been resolved. For one thing, the error when adding the first icon rule in the tag explorer no longer appears. For another, the PDB input module is more tolerant and can convert files with slightly malformed headers. On Windows, the compilation process improves consistency by signing libraries in addition to .dlls. .pydAmong the usage settings, an option has been added to Preferences to display the keyboard shortcut for each category in the tooltip, and several integrated news sources have been updated, such as The New York Times, The Economist, El Diplo, and the New York Review of Books.
Download and installation
Calibre 8.11 is available from the official website in ready-to-use binaries for 64-bit and ARM64 Linux, and can also be installed as a Flatpak from Flathub. Those who prefer to update independently will simply download the corresponding package and launch the application; as always, this is software. free and without cost, with cross-platform support.
With the arrival of Ask AI and a handful of practical tweaks, this edition puts the emphasis on convenience: more context for the reader who needs it, greater stability in extreme situations and small touches of quality of life that, added together, make Caliber 8.11 a recommended release for new and veteran users.
