Calibre 1.44.0 is here to fix several annoying bugs that were introduced in the previous maintenance release and reported by users through the official bug tracker of the project, and add a handful of new features as well as improved new sources.
Among the new features added in Calibre 1.44.0 we can mention the ability to use the CTRL + left mouse click combination on a highlighted link when editing a book to directly jump to the file it points to. In addition, if a link is no longer available, it will be marked as error.