Changelog for ruby2.5-rubygem-nio4r-2.1.0-3.1.x86_64.rpm :
Tue Oct 31 13:00:00 2017 mrueckertAATTsuse.de
- only build for 2.3+ from now

Fri Jul 28 14:00:00 2017 mrueckertAATTsuse.de
- initial package