Super Early Bird is limited quantity. Ruby-core committers, RubyKaigi 2020 speakers, CFP submitters have a discount option. See below for details. RubyKaigi 2020 has been cancelled Please refer to the following announcement: RubyKaigi 2020 announcements on the Novel Coronavirus COVID-19 outbreak Register here for RubyKaigi 2020! Our official website is at https://rubykaigi.org/2020 Latest news are