k0kubun @k0kubun.com · 15/09/2026Ruby 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.orgRuby 4.0.7 Released | RubyRuby 4.0.7 has been released. 02010
k0kubun @k0kubun.com · 14/09/2026Join me at @sfruby.com's Ruby Conference and get your pixel card too 👾 clouds.sfruby.com/e/2026-bits/...clouds.sfruby.comTakashi Kokubun · San Francisco Ruby ConferenceStaff Engineer at Shopify. Joining the San Francisco Ruby Conference on November 10-12, 2026. 1123
k0kubun @k0kubun.com · 03/09/2026> Message from general-purpose (ctrl+o to expand) > press ctrl+o > my launcher opens Slack 030
k0kubun @k0kubun.com · 28/08/2026We'll present a paper about ZJIT at VMIL'26! conf.researchr.org/details/spla...conf.researchr.orgSupport Local Variables (VMIL 2026 - Workshop on Virtual Machines and Language Implementations) - SPLASH/ISSTA 2026Virtual 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... 2195
Reposted by k0kubunStefan Marr @stefan-marr.de · 28/08/2026VMIL'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-... 043
Reposted by k0kubunJean Boussier @byroot.bsky.social · 13/08/2026A quick followup on Ruby Hashes byroot.github.io/ruby/perform...byroot.github.ioSpeeding Up (small) Ruby HashesSomething 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... 1155
k0kubun @k0kubun.com · 14/07/2026Ruby 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.orgRuby 4.0.6 Released | RubyRuby 4.0.6 has been released. 0157
k0kubun @k0kubun.com · 20/05/2026We 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.orgRuby 4.0.5 Released | RubyRuby 4.0.5 has been released. 0169
Reposted by k0kubunJohn Hawthorn @jhawthorn.com · 12/05/2026If 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). 0238
k0kubun @k0kubun.com · 11/05/2026Ruby 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.orgRuby 4.0.4 Released | RubyRuby 4.0.4 has been released. 02410
k0kubun @k0kubun.com · 21/04/2026Ruby 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.orgRuby 4.0.3 Released | RubyRuby 4.0.3 has been released. 051
k0kubun @k0kubun.com · 16/03/2026Ruby 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.orgRuby 4.0.2 Released | RubyRuby 4.0.2 has been released. 01813
k0kubun @k0kubun.com · 13/01/2026Ruby 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.orgRuby 4.0.1 Released | RubyRuby 4.0.1 has been released. 0186
Reposted by k0kubunEvil 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.beTakashi Kokubun, ZJIT: The future of Ruby performance. San Francisco Ruby Conference 2025.YouTube video by Evil Martians 2114
k0kubun @k0kubun.com · 17/12/2025Ruby 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.orgRuby 3.4.8 Released 0125
Reposted by k0kubunEvil Martians @evilmartians.com · 22/10/2025Today 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.comWhy we're excited about the SF Ruby conference—Martian Chronicles, Evil Martians’ team blogSF Ruby and Evil Martians are excited to invite you to our premier event: the San Francisco Ruby Conference. 01512
k0kubun @k0kubun.com · 21/10/2025It was fun to create a cloud card. Join us at @sfruby.com next month! bsky.app/profile/inaz... 1102
Reposted by k0kubunJean Boussier @byroot.bsky.social · 09/10/2025I 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.ioDear Rubyists: Shopify Isn’t Your EnemyI’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... 119335
k0kubun @k0kubun.com · 07/10/2025Ruby 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.orgRuby 3.4.7 Released 02312
k0kubun @k0kubun.com · 16/09/2025Ruby 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.orgRuby 3.4.6 Released 0127
k0kubun @k0kubun.com · 15/07/2025Ruby 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.orgRuby 3.4.5 Released 12910
Reposted by k0kubunAndré Arko @indirect.io · 01/07/2025years 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.netYou should delete testsWe’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... 58521
k0kubun @k0kubun.com · 14/05/2025Ruby 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.orgRuby 3.4.4 Released 02411
k0kubun @k0kubun.com · 14/04/2025Ruby 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.orgRuby 3.4.3 Released 0188
k0kubun @k0kubun.com · 11/04/2025Using 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.comColors look wired · wezterm wezterm · Discussion #4680What 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... 020
k0kubun @k0kubun.com · 11/04/2025I'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. 110
k0kubun @k0kubun.com · 04/03/2025The latest VSCode feels buggy with VSCode Neovim 😕 It often duplicates what I just entered. 000
Reposted by k0kubunJohn Hawthorn @jhawthorn.com · 24/02/2025After an incredible 6.5+ years, Friday was my last day at GitHub. I'm so thankful to have gotten to know and have worked with such a smart and thoughtful group of people. I'm excited to continue working on Ruby as part of the Ruby and Rails Infrastructure team at Shopify ❤️ 💎 11911
k0kubun @k0kubun.com · 14/02/2025Ruby 3.4.2 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.orgRuby 3.4.2 Released 13411
k0kubun @k0kubun.com · 14/02/2025ChatGPT使う時にちょっと賢い奴欲しいなってなったら課金してて今はPlusあるんだけど、初歩的なところで間違った回答が返ってくることもあり、金払ってるのに渋いなという体験になりがち。逆に無料版は金払ってないのにやたら賢いという体験になる 060
Reposted by k0kubunhsbt @hsbt.org · 14/02/2025The branch maintainers of Ruby have been updated. @k0kubun.com is the new maintainer of Ruby 3.4 that is latest stable version. I and @nagachika.bsky.social keep to maintain the old stable versions like 3.3, 3.2 and 3.1. #ruby bugs.ruby-lang.org/issues/21136bugs.ruby-lang.orgMisc #21136: [ANN] The update of branch maintainer for Ruby 3.2 to 3.4 - Ruby master - Ruby Issue Tracking SystemRedmine 0228
Reposted by k0kubunAaron Patterson @tenderlove.dev · 12/02/2025I wrote a blog post about how we can make FFI faster in CRuby railsatscale.com/2025-02-12-t...railsatscale.comTiny JITs for a Faster FFICan we have a faster FFI for CRuby? Yes. 57724
k0kubun @k0kubun.com · 10/02/2025Rust、/// の後の定義をコメントアウトすると /// の後に定義が来ないせいでコンンパイルエラーになるのやめて欲しい 流石にwarningレベルの問題でしょ… 030
k0kubun @k0kubun.com · 21/01/2025今でこそグリーンカードあるけど、うちも子ができた時はnon-immigrant visaで滞在してたので、現政権下だと国籍もらえなそうなんだなあ 0100
k0kubun @k0kubun.com · 25/12/2024www.ruby-lang.org/en/news/2024...ruby-lang.orgRuby 3.4.0 Released 04515
k0kubun @k0kubun.com · 25/12/2024ググってStackOverflowを眺めるんじゃなくてChatGPTに質問したら適切な答えが帰ってきてそれで直った。人間+インターネットよりAIの方が知性が高いし、Neovimは人間が使うには難しすぎる 040
k0kubun @k0kubun.com · 25/12/2024coc.nvimのrust-analyzerの連携ある日突然動かなくなってしまって、Rustのファイル開く度にそれが壊れているメッセージが出て鬱陶しいので適当にググってrust-analyzerおよびcocプラグインを更新してみたところそれでは直らず。何もしてないのに何かが変わって壊れるNeovimと違って、普通に使ってるだけで動き続けるVSCodeは偉いなと思った 010
Reposted by k0kubunMike Dalessio @flavorjon.es · 16/12/2024Rubyists, if you're testing Ruby 3.4 please upgrade Nokogiri to v1.18.0.rc1! github.com/sparklemotio... Here's some motivation: this release also has a big performance improvement in xpath/css searching. 🚀 #rubygithub.comRelease v1.18.0.rc1 / 2024-12-16 · sparklemotion/nokogiriv1.18.0.rc1 / 2024-12-16 Notable Changes Ruby This release introduces native gem support for Ruby 3.4. This release ends support for Ruby 3.0, for which upstream support ended 2024-04-23. This rele... 084
k0kubun @k0kubun.com · 09/12/2024By the way, Google Translate (linked by Bluesky's "Translate") is still bad in 2024. Bluesky should switch to DeepL, or Google should power it with Gemini or something that doesn't suck. 010
k0kubun @k0kubun.com · 09/12/2024iPhone、Androidと違って通知の設定がOSの設定じゃなくてアプリ内でしか変更できないせいか、アプリの設定で余計な通知を切ったように見えてもどうでもいい通知が貫通してくる & それを切る設定が見当らないことが多くて、その点はiPhoneめっちゃ不便だなと思う。一見そういうアプリ作ってる人たちの問題にも見えるものの、それを招いているプラットフォームの設計の欠陥だと思う 130
k0kubun @k0kubun.com · 25/11/2024I finally realized Bluesky has "Post language" setting. I thought "Translate" was not implemented on Bluesky, but it was just that it was set to English for all my past Japanese posts 😅 040
k0kubun @k0kubun.com · 25/11/2024別に何かバズったわけでもないのに (必ずしも新規ユーザーではない人に) そこそこの量フォロー増えたな。既存ユーザーのフォローを促すような何かがあったんだろうか 120
k0kubun @k0kubun.com · 08/11/2024alexaとgoogle homeは対応してるけどhomekitは対応してないIoTデバイスと、homekitでしかできないことがあるIoTデバイスがある。 各メーカーAppleのHomeアプリみたいな奴を自作していて、そこもhomekitデバイスを追加できるが、そのメーカーの物+homekitデバイスしか当然管理できないので、全てを一元管理するのは無理になっている。 人類は大変不便なエコシステムを作ってしまいましたね 100
