Fedora is a Linux distribution developed by the community-supported Fedora Project and sponsored by Red Hat.
Fedora on ARM supports a wide variety of hardware from large enterprise aarch64 SBSA compliant hardware down to inexpensive single board computers (SBCs). It’s primarily focused on Server, SBCs, IoT and other uses similar to the Fedora Workstation / Server / Cloud that other Fedora architectures support.
Peter Robinson has an overview of Fedora 27 support for single-board Arm systems in his weblog.
The Fedora release schedule is designed to integrate upstream software at a rapid pace, resulting in multiple distribution releases per year. The Fedora 29 schedule points at a release target of the end of October 2018.