I talk about the RBS updates between Ruby 3.0 and 3.1 in this talk.
RBS for Ruby 3.1 will be released with many changes. I'll pick up and describe some features for this talk.
RubyKaigi Takeout 2021: https://rubykaigi.org/2021-takeout/presentations/p_ck_.html
RubyKaigi Takeout 2021