Calibre 2.64 is now the latest and most advanced version of the application designed for book lovers who prefer to use digital e-book readers to store their books in various file formats, as well as convert and organize ebooks from a format to another, if it’s supported by Calibre, of course. Release highlights include the ability to append text to the end of a marked text when using either of the search or replace function modes on the marked text, better shutdown on GNU/Linux and Mac OS X systems if a terminate or interrupt UNIX signal is received, and the implementation of a new “Short text” column type.