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5 calibre available

Calibre is a free open source book manager, available on multiple platforms (for Linux, Windows, and Mac OS). Developers Announce Major Calibre 5 Update.

Similarly, Calibre 5 is the first version to use Python 3 completely. This often sounds like “features” not well seen to stand out, but change is necessary for some time. Also, Python 3 will help the application get a better foundation, to sustain in future versions. In addition, it ensures that the application remains secure and stable in the various modern Linux distributions.

Calibre 5: What’s New?

  • Now use Python 3. Usually, users will not see anything, but some addons or plugins will fail and will do so until their developers update them.
  • On the other hand, the possibility of highlighting text. Now in calibre 5 the highlighting is of several colors, underlining, among others, in addition to adding notes..
  • The E-book viewer now supports portrait mode and right-to-left text.
  • Dark mode, they ensure that it is automatically activated in Windows and MacOS. However, it is likely that this will also work in some Linux distribution, but the most common is that you set the environment variable CALIBRE_USE_DARK_PALETTE=1.
  • Regular expression engine used for searching the book list and reading metadata from filenames has been made more powerful.

To find out more about what’s new with the latest update, visit the official site


Calibre a multi-platform application for managing, reading, and publishing electronic books.

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The latest update of the free digital manager is the first to use Python 3 completely. They also ensure a more secure and stable base for the various modern Linux distributions.

On the other hand, calibre 5 incorporates the text highlighter, where they give several color options to choose from.

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