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k0kubun

@k0kubun.com
972 followers 317 following 502 posts

Optimizing Ruby JIT. ZJIT team at Shopify.

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k0kubun @k0kubun.com · 15/09/2026
Ruby 4.0.7 Released www.ruby-lang.org/en/news/2026... This is a routine update that includes bugfixes. We recommend upgrading your Ruby version at your earliest convenience.
ruby-lang.org
Ruby 4.0.7 Released | Ruby
Ruby 4.0.7 has been released.
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k0kubun @k0kubun.com · 15/09/2026
ですね。マップ上で知ってる人見たら割と識別できますし、いい感じに特徴出てるなと思います
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k0kubun @k0kubun.com · 14/09/2026
Join me at @sfruby.com's Ruby Conference and get your pixel card too 👾 clouds.sfruby.com/e/2026-bits/...
clouds.sfruby.com
Takashi Kokubun · San Francisco Ruby Conference
Staff Engineer at Shopify. Joining the San Francisco Ruby Conference on November 10-12, 2026.
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k0kubun @k0kubun.com · 03/09/2026
> Message from general-purpose (ctrl+o to expand) > press ctrl+o > my launcher opens Slack
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k0kubun @k0kubun.com · 01/09/2026
Thank you! 🙌
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k0kubun @k0kubun.com · 28/08/2026
Thank you! 😄
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k0kubun @k0kubun.com · 28/08/2026
We'll present a paper about ZJIT at VMIL'26! conf.researchr.org/details/spla...
conf.researchr.org
Support Local Variables (VMIL 2026 - Workshop on Virtual Machines and Language Implementations) - SPLASH/ISSTA 2026
Virtual Machines are pervasive in the design and implementation of programming systems. In fact, languages implemented as virtual machines are crucial in the specification, implementation, and deploym...
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Reposted by k0kubun
Stefan Marr @stefan-marr.de · 28/08/2026
VMIL'26 has a program! Looks very interesting. Static Analysis, optimizing Android's GC, understanding R's benchmarks, optimizing Ruby, and lots more! The SPLASH early registration deadline is September 3rd! Program: conf.researchr.org/home/splash-...
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Reposted by k0kubun
Jean Boussier @byroot.bsky.social · 13/08/2026
A quick followup on Ruby Hashes byroot.github.io/ruby/perform...
byroot.github.io
Speeding Up (small) Ruby Hashes
Something I must confess is that I absolutely hate writing these blog posts. It’s not quite as bad as having to give a conference talk, but it’s up there on the list of activities that feel like pulli...
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k0kubun @k0kubun.com · 14/07/2026
Ruby 4.0.6 Released www.ruby-lang.org/en/news/2026... This is a routine update that includes bugfixes. We recommend upgrading your Ruby version at your earliest convenience.
ruby-lang.org
Ruby 4.0.6 Released | Ruby
Ruby 4.0.6 has been released.
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k0kubun @k0kubun.com · 12/06/2026
やってますね。僕はそこが一番近いので助かってます
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k0kubun @k0kubun.com · 12/06/2026
順番に garlic high, ramen champ, ramen taka, ippudo でした
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k0kubun @k0kubun.com · 12/06/2026
おっしゃる通りです!美味しいですよね
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k0kubun @k0kubun.com · 12/06/2026
ベイエリアのラーメン4選
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k0kubun @k0kubun.com · 20/05/2026
We released Ruby 4.0.5 and published security advisory for CVE-2026-46727. If you use Ruby 4.0.0~4.0.4, we recommend updating your Ruby version to 4.0.5. www.ruby-lang.org/en/news/2026...
ruby-lang.org
Ruby 4.0.5 Released | Ruby
Ruby 4.0.5 has been released.
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Reposted by k0kubun
John Hawthorn @jhawthorn.com · 12/05/2026
If you haven't upgraded yet, Ruby 4.0's garbage collection is generally much faster than 3.4. This patch release fixes the one area there had previously been a notable regression (allocating/freeing Classes).
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k0kubun @k0kubun.com · 11/05/2026
Ruby 4.0.4 Released www.ruby-lang.org/en/news/2026... This is a routine update that includes bugfixes. We recommend upgrading your Ruby version at your earliest convenience.
ruby-lang.org
Ruby 4.0.4 Released | Ruby
Ruby 4.0.4 has been released.
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k0kubun @k0kubun.com · 21/04/2026
Ruby 4.0.3 has been released. It updates ERB to 6.0.1.1 for CVE-2026-41316. If your application calls Marshal.load on untrusted data AND has both erb and activesupport loaded, please update your ERB version. You may update Ruby to 4.0.3 to do so. www.ruby-lang.org/en/news/2026...
ruby-lang.org
Ruby 4.0.3 Released | Ruby
Ruby 4.0.3 has been released.
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k0kubun @k0kubun.com · 16/03/2026
Ruby 4.0.2 Released www.ruby-lang.org/en/news/2026... This is a routine update that includes a bugfix in YJIT for NoMethodError on Puma. We recommend upgrading your Ruby version at your earliest convenience.
ruby-lang.org
Ruby 4.0.2 Released | Ruby
Ruby 4.0.2 has been released.
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k0kubun @k0kubun.com · 13/01/2026
Ruby 4.0.1 Released www.ruby-lang.org/en/news/2026... This release includes a bugfix for Kernel#sleep, along with other bugfixes. We recommend upgrading your Ruby version at your earliest convenience.
ruby-lang.org
Ruby 4.0.1 Released | Ruby
Ruby 4.0.1 has been released.
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Reposted by k0kubun
Evil Martians @evilmartians.com · 29/12/2025
@k0kubun.com talked about ZJIT, the next generation of YJIT for Ruby 3.5. He explained how to use it to improve Ruby’s speed in Ruby and Rails infrastructures.
youtu.be
Takashi Kokubun, ZJIT: The future of Ruby performance. San Francisco Ruby Conference 2025.
YouTube video by Evil Martians
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k0kubun @k0kubun.com · 17/12/2025
Ruby 3.4.8 Released www.ruby-lang.org/en/news/2025... This is a routine update that includes bug fixes. We recommend upgrading your Ruby version at your earliest convenience.
ruby-lang.org
Ruby 3.4.8 Released
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k0kubun @k0kubun.com · 27/11/2025
この提案はよく出てきますね。そう変更しちゃっていいと思います
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k0kubun @k0kubun.com · 05/11/2025
👍
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k0kubun @k0kubun.com · 28/10/2025
Happy 10th anniversary to md2key
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Reposted by k0kubun
Evil Martians @evilmartians.com · 22/10/2025
Today is the last day to grab a GA ticket for SF Ruby! Read our new blog post for a preview: evilmartians.com/chronicles/w...
evilmartians.com
Why we're excited about the SF Ruby conference—Martian Chronicles, Evil Martians’ team blog
SF Ruby and Evil Martians are excited to invite you to our premier event: the San Francisco Ruby Conference.
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k0kubun @k0kubun.com · 22/10/2025
わかります。つい生成したくなるので、良い集客ネタだなと思いました
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k0kubun @k0kubun.com · 21/10/2025
It was fun to create a cloud card. Join us at @sfruby.com next month! bsky.app/profile/inaz...
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k0kubun @k0kubun.com · 16/10/2025
元々は本家パーサーのASTをコンバートする方が楽という立場だったんですが、今はもう一転してparser/parser.yに統一でいいと思っています。 で、その方向性に一本化した場合に現状の不満な点としては、特定のDBのシンタックスをいれると他のDBも(必要以上にキーワード判定が増えるみたいな)影響を受けてしまうという点があって、パーサーの定義をテンプレート化して、できればDBごとにシンタックス定義の分岐が入るような実装にしたいと思ってました。 そういった細かい点はお任せしますが、pgquery捨てるという方向性は賛成です
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k0kubun @k0kubun.com · 10/10/2025
スポンサー & ご利用いただきありがとうございます ☺️
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Reposted by k0kubun
Jean Boussier @byroot.bsky.social · 09/10/2025
I tried to explain why I don't believe the recent accusations toward my former teammates, as well as how the Ruby and Rails Infra team at Shopify operates and why it can be trusted. byroot.github.io/opensource/r...
byroot.github.io
Dear Rubyists: Shopify Isn’t Your Enemy
I’ve been meaning to write a post about my perspective on Open Source and corporate entities. I already got the rough outline of it; however, I’m suffering from writer’s block, but more importantly, t...
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k0kubun @k0kubun.com · 07/10/2025
Ruby 3.4.7 Released ruby-lang.org/en/news/2025... This release contains a uri gem update for CVE-2025-61594, along with other bug fixes. We recommend updating your uri gem version. This release has been made for the convenience of those who wish to continue using it as a default gem.
ruby-lang.org
Ruby 3.4.7 Released
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k0kubun @k0kubun.com · 30/09/2025
👌
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k0kubun @k0kubun.com · 28/09/2025
検索が別になっている点もUIの差異も大きいことから察するに、それも実装されるまではかなり距離があるような感じがします。Issuesのような使い方をしたいのであれば単にIssuesの方を使えばいいと思いますね
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k0kubun @k0kubun.com · 28/09/2025
closeできるものとできないものがあるので、そこまで不思議な仕様でもないと思います。closeできるものはclose xxxでできるようになる要望は当然あってもいいとは思いますが
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k0kubun @k0kubun.com · 28/09/2025
ではsqldef/sqldefに関してはIssuesに切り替えましょうか。IssuesとDiscussionsを両方開きっぱなしにするのは嫌なので、未closeのdiscussionは (Issues有効化後) "Create issue from discussion"でIssuesに移した上で、Discussionsは無効にしていただけると嬉しいです
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k0kubun @k0kubun.com · 26/09/2025
こういうの欲しいなーと思いつつ永遠にサボり続けてたので、すごくありがたいです!このactionを流行らせましょう
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k0kubun @k0kubun.com · 17/09/2025
👍
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k0kubun @k0kubun.com · 16/09/2025
Ruby 3.4.6 Released www.ruby-lang.org/en/news/2025... This is a routine update that includes bug fixes. We recommend upgrading your Ruby version at your earliest convenience.
ruby-lang.org
Ruby 3.4.6 Released
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k0kubun @k0kubun.com · 15/09/2025
I made you an owner.
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k0kubun @k0kubun.com · 08/09/2025
Did you try `xattr -d com.apple.quarantine psqldef`?
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k0kubun @k0kubun.com · 15/07/2025
Ruby 3.4.5 Released www.ruby-lang.org/en/news/2025... This is a routine update that includes bug fixes and GCC 15 support. We recommend upgrading your Ruby version at your earliest convenience.
ruby-lang.org
Ruby 3.4.5 Released
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Reposted by k0kubun
André Arko @indirect.io · 01/07/2025
years after working with a team that was vehemently against deleting any test, no matter how flaky, I have assembled my counter-doctrine: you should delete tests andre.arko.net/2025/06/30/y...
andre.arko.net
You should delete tests
We’ve had decades of thought leadership around testing, especially coming from wholistic development philosophies like Agile, TDD, and BDD. After all that time and several supposedly superseding movem...
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k0kubun @k0kubun.com · 14/05/2025
Ruby 3.4.4 Released www.ruby-lang.org/en/news/2025... This release includes a fix for a YJIT bug related to local variables and addresses a build issue on Windows when using GCC 15. It was released ahead of schedule to make these fixes available as soon as possible.
ruby-lang.org
Ruby 3.4.4 Released
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k0kubun @k0kubun.com · 12/05/2025
I'm glad to hear that 😄
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k0kubun @k0kubun.com · 14/04/2025
Ruby 3.4.3 Released www.ruby-lang.org/en/news/2025.... This is a routine update that includes bug fixes. We recommend upgrading your Ruby version at your earliest convenience.
ruby-lang.org
Ruby 3.4.3 Released
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k0kubun @k0kubun.com · 13/04/2025
No. Is that what you use?
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k0kubun @k0kubun.com · 11/04/2025
Using Neovide made me realize that my Neovim (on tmux) on WezTerm showed wrong colors github.com/wezterm/wezt.... Combined with floatConfig changes I made on coc-settings today, I'm now satisfied with the UI of nvim on my terminal.
github.com
Colors look wired · wezterm wezterm · Discussion #4680
What Operating System(s) are you running on? Linux X11 Which Wayland compositor or X11 Window manager(s) are you using? awesomewm WezTerm version 20230712-072601-f4abf8fd Ask your question! I'm try...
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k0kubun @k0kubun.com · 11/04/2025
I'm trying out Neovide. It's beautiful enough that I'm considering switching from VSCode Neovim to it. But I also wish Neovim on a modern terminal looked like that in the first place.
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k0kubun @k0kubun.com · 13/03/2025
Have you tried github.com/r7kamura/rub...?
github.com
GitHub - r7kamura/rubocop-erb: RuboCop plugin for ERB template.
RuboCop plugin for ERB template. Contribute to r7kamura/rubocop-erb development by creating an account on GitHub.
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