{% comment %} Copyright (C) The Arvados Authors. All rights reserved. SPDX-License-Identifier: CC-BY-SA-3.0 {% endcomment %} Ruby 2.7 or newer is required. h2. Alma/CentOS/Red Hat/Rocky Version 8 of these distributions provides Ruby 2.7. You can install it by running:
# dnf module enable ruby:2.7
# dnf install --enablerepo=devel ruby ruby-devel
h2. Debian and Ubuntu Debian 11 (bullseye) and Ubuntu 20.04 (focal) and later ship with Ruby 2.7 or newer, which is sufficient for Arvados.
# apt-get --no-install-recommends install ruby ruby-dev