When I type: guix --version I get: guix (GNU Guix) 6689a96ce86497299bd29f183b744116fd2d6e32 That's not really helpful (i.e. it doesn't tell how old / up to date my system is). A proper version number (e.g. "x.y.z-devel", etc.) and/or a date would be nice. S. -- Stefane Fermigier - http://fermigier.com/ - http://twitter.com/sfermigier - http://linkedin.com/in/sfermigier Founder & CEO, Abilian - Enterprise Social Software - http://www.abilian.com/ Founder & Software Architect - Nua & Hop3 open source PaaS project - https://nua.rocks/ / https://hop3.cloud/ Co-Founder & Co-Chairman, National Council for Free & Open Source Software (CNLL) - http://cnll.fr/ Co-Founder & Board Member, Association Professionnelle Européenne du Logiciel Libre (APELL) - https://www.apell.info/