Nobuyoshi Nakada 73a626c078
[ruby/io-wait] update required_ruby_version
As d387029f39d976565c955377117103499d47ff09 made io/wait
unbuildable with older versions, drop older versions tentatively.
Also the change seems to instroduce behavioral incompatibilities,
may address them or bump up the version later.
2020-09-19 17:47:40 +09:00
..
2020-09-08 10:30:07 +09:00
2020-09-10 20:42:53 +09:00