Changelog for ruby2.5-rubygem-nio4r-2.3.1-4.3.x86_64.rpm :

* Sat Jan 19 2019 Marcus Rueckert - rb_build_ruby_abi needs to be rb_build_ruby_abis
* Fri Jan 18 2019 Marcus Rueckert - limit to ruby 2.5 and above for 42.3/sle12
* Tue Jan 15 2019 Marcus Rueckert - update to 2.3.1
* Tue Oct 31 2017 mrueckertAATTsuse.de- only build for 2.3+ from now
* Fri Jul 28 2017 mrueckertAATTsuse.de- initial package