| 2015 | 
                Yukihiro "Matz" Matsumoto | 
                Keynote | 
              
              
              
                | 2015 | 
                Keiju Ishitsuka | 
                Usage and implementation of Reish which is an Unix shell for Rubyist | 
              
              
              
                | 2015 | 
                Masatoshi SEKI | 
                Actor, Thread and me | 
              
              
              
                | 2015 | 
                Sutou Kouhei | 
                The history of testing framework in Ruby | 
              
              
              
                | 2015 | 
                Ippei Obayashi | 
                Ruby for one day game programming camp for beginners | 
              
              
              
                | 2015 | 
                Koichi Sasada | 
                Compiling Ruby scripts | 
              
              
              
                | 2015 | 
                Charles Nutter | 
                Upcoming Improvements to JRuby 9000 | 
              
              
              
                | 2015 | 
                Thomas E Enebo | 
                Upcoming Improvements to JRuby 9000 | 
              
              
              
                | 2015 | 
                Yutaka HARA | 
                Let's make a functional language! | 
              
              
              
                | 2015 | 
                Evan Phoenix | 
                Keynote | 
              
              
              
                | 2015 | 
                Laurent Sansonetti | 
                The future of Ruby is in motion! | 
              
              
              
                | 2015 | 
                Aaron Patterson | 
                Request and Response | 
              
              
              
                | 2015 | 
                Yehuda Katz | 
                Turbo Rails with Rust | 
              
              
              
                | 2015 | 
                Hiroshi SHIBATA | 
                Pragmatic Testing of Ruby Core | 
              
              
              
                | 2015 | 
                Paolo Perrotta | 
                Refinements - the Worst Feature You Ever Loved | 
              
              
              
                | 2015 | 
                Mayumi EMORI | 
                Discussion on Thread between version 1.8.6 and 2.2.3 | 
              
              
              
                | 2015 | 
                KOSAKI Motohiro | 
                Keynote | 
              
              
              
                | 2015 | 
                Terence Lee | 
                Building CLI Apps for Everyone | 
              
              
              
                | 2015 | 
                Satoshi Tagomori | 
                Data Analytics Service Company and Its Ruby Usage | 
              
              
              
                | 2015 | 
                mame & the judges | 
                TRICK 2015: The second Transcendental Ruby Imbroglio Contest for RubyKaigi | 
              
              
              
                | 2015 | 
                zzak | 
                Building CLI Apps for Everyone | 
              
              
              
                | 2015 | 
                Josh Kalderimis | 
                Beyond Saas: Building for Enterprise | 
              
              
              
                | 2015 | 
                Matthew Gaudet | 
                Experiments in sharing Java VM technology with CRuby | 
              
              
              
                | 2015 | 
                Yuki Nishijima | 
                Saving people from typos | 
              
              
              
                | 2015 | 
                Shota Nakano | 
                mruby on the minimal embedded resource | 
              
              
              
                | 2015 | 
                Hsing-Hui Hsu | 
                Time flies like an arrow; Fruit flies like a banana: Parsers for Great Good | 
              
              
              
                | 2015 | 
                Kevin Menard | 
                Fast Metaprogramming with Truffle | 
              
              
              
                | 2015 | 
                Emily Stolfo | 
                DIY (Do-it-Yourself) Testing | 
              
              
              
                | 2015 | 
                Kohei Suzuki | 
                High Performance Template Engine: Guide to optimize your Ruby code | 
              
              
              
                | 2015 | 
                Takashi Kokubun | 
                High Performance Template Engine: Guide to optimize your Ruby code | 
              
              
              
                | 2015 | 
                Will Leinweber | 
                Introducing the Crystal Programming Language | 
              
              
              
                | 2015 | 
                Julian Cheal | 
                Charming Robots | 
              
              
              
                | 2015 | 
                Godfrey Chan | 
                Turbo Rails with Rust | 
              
              
              
                | 2015 | 
                Naohisa Goto | 
                Running Ruby on Solaris | 
              
              
              
                | 2015 | 
                Fernando Hamasaki de Amorim | 
                The worst Ruby codes I've seen in my life | 
              
              
              
                | 2015 | 
                Masaki Matsushita | 
                Ruby meets Go | 
              
              
              
                | 2015 | 
                Franck Verrot | 
                Ruby and PostgreSQL, a love story | 
              
              
              
                | 2015 | 
                Masahiro Nagano | 
                Rhebok, High Performance Rack Handler | 
              
              
              
                | 2015 | 
                Yurie Yamane | 
                making robot with mruby | 
              
              
              
                | 2015 | 
                LT speakers (JA -> EN interpreters won't be available) | 
                Lightning Talks | 
              
              
              
                | 2015 | 
                CRuby Committers | 
                Ruby Committers vs the World | 
              
              
              
                | 2015 | 
                Robert Young | 
                It's dangerous to GC alone. Take this! | 
              
              
              
                | 2015 | 
                Craig Lehmann | 
                It's dangerous to GC alone. Take this! | 
              
              
              
                | 2015 | 
                Yoh Osaki | 
                Writing web application in Ruby | 
              
              
              
                | 2015 | 
                Sadayuki Furuhashi | 
                Plugin-based software design with Ruby and RubyGems | 
              
              
              
                | 2015 | 
                Christophe Philemotte | 
                Prepare yourself against Zombie epidemic |