![[EN] Fearlessly Refactoring Legacy Ruby / Justin Searls](https://i.ytimg.com/vi/lQvDd9GPSB4/mqdefault.jpg)
![[EN][Keynote] Towards Ruby 3x3 performance / Vladimir Makarov @vnmakarov](https://i.ytimg.com/vi/qpZDw-p9yag/mqdefault.jpg)
![[JA Keynote] Dive into CRuby / NARUSE, Yui](https://i.ytimg.com/vi/iMtpCes8VqU/mqdefault.jpg)
![[EN] RubyKaigi 2017 Closing](https://i.ytimg.com/vi/a0L5Eu0ztgE/mqdefault.jpg)
![[EN] A Tale of Two String Representations / Kevin Menard](https://i.ytimg.com/vi/UQnxukip368/mqdefault.jpg)
![[JA] Optimizing Ruby / Urabe, Shyouhei](https://i.ytimg.com/vi/spxcAHidm5o/mqdefault.jpg)
Data is compiled from public records and verified media reports.
Last Updated: October 20, 2026
Disclaimer: Disclaimer: All information is compiled from publicly available data, media reports, and analysis. Actual details may vary.
Speakers: Charles Nutter, Thomas E Enebo Speakers: Yehuda Katz, Godfrey Chan Speaker: Yukihiro "Matz" Matsumoto first day movie youtu.be/qUpfHgU8UaY last day movie youtu.be/6jczRi37MgI 私が見たのは以下の通り Fearlessly ...
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