> Do I have to delete the old one? No. > What about my configuration file, is this only for the > older version? Most older configuration files will work just fine with GnuPG 2.0 and 2.1. >From the Mint command line: sudo apt-get install gnupg2 It'll install GnuPG 2.0 (2.1 in Sarah) and you'll be ready to go.