Calibre is a powerful tool for managing a collection of eBooks on Windows, Mac, and Linux computers. It also includes tools for converting eBooks from one format to another and supports a wide-range of third-party plugins for doing things like finding duplicates, searching your local public library’s OverDrive eBook collection, and… other things.
It took 7 years for the developer of Calibre to decide the software was stable enough to be called version 1.0.
Now version 3.0 is out, and it only took about 4 more years.
The biggest change between Calibre 2.0 and Calibre 3.0 is a new version of the content server that lets you fire up any phone, tablet, or other device and read eBooks stored on your PC. You can even use a web browser to access books served up through the Calibre content server.
Other updates include support for computers with high DPI displays, support for converting eBooks to Microsoft Word (DOCX) files, a bunch of bug fixes, and a new splash screen.
Since the content server was rewritten, upgrading from an earlier version of Calibre will overwrite any changes you’ve made. So you may need to manually adjust your port settings or other items. And QT theme and style plugins are no longer supported on Linux.