RubyMine, a JetBrains IDE

🚀 RubyMine 2025.3 Is Released! 🔸 Multi-agent AI chat with integrated Junie and Claude Agent. 🔸 Rails-aware MCP server for smarter AI-assisted code exploration. 🔸 Improved completion for qualified constants. 🔸 Faster multi-module project startup with more accurate gem resolution. Learn more 👉 jb.gg/l0dhw2

@Arpansac @jetbrains Thanks for the suggestion! Do you mean a tutorial on using AI features in RubyMine for Rails projects specifically?

@jetbrains Can we get a tutorial on Ruby on Rails + AI also, please?

Build AI-powered apps with Kotlin and Spring AI. Follow a hands-on tutorial series covering text and image generation, text-to-speech, embeddings, and RAG – all on a pure JVM stack. Get started 👇

Due to shifting demand, we’re gradually sunsetting Code With Me, our collaborative coding and pair programming service. 2026.1 will be the last IDE release to officially support it, with the service planned to shut down in Q1 2027. Full details: blog.jetbrains.com/platform/2026/…

🚀 Cursor is now available in RubyMine through the Agent Client Protocol – giving you more flexibility in how you work with AI agents. Learn more 👇

New RubyMine blog post about building LLM-Friendly MCP tools 🚀 Since 2025.3, RubyMine provides AI models with all the information it gathers about open Rails projects. Explore how we implemented the new Rails toolset and what we’ve learned about MCP tool design: pagination, filtering, tool limits, error handling, and writing LLM-friendly tool schemas. If you’re interested in AI-powered dev tools or Rails + AI workflows, check it out 👇 jb.gg/a1lzmo

The Wiz plugin is now available in RubyMine too 👇

OpenAI Codex is now natively integrated into the AI chat in JetBrains IDEs as one of the coding agent options. Use it with JetBrains AI, your ChatGPT account, or an OpenAI API key.

🎉 Happy 30th anniversary, Ruby! As Ruby 4.0 launches, we’re celebrating Ruby's journey. Huge thanks to @yukihiro_matz and the @RubyAssociation for shaping a language that’s inspired devs worldwide. Dive into 3 decades of code, community, and creativity: jb.gg/q8bqmy

Bring Your Own Key (BYOK) is live in JetBrains IDEs! You can now connect your API keys from OpenAI, Anthropic, or any OpenAI-compatible provider, and use them with the AI chat, Junie, and Claude Agent right inside your JetBrains IDE. Learn more in the blog post: jb.gg/5h08hf

Great breakdown of Fizzy as an example of a real-world Rails architecture from @jorgemanru @37signals. The takes on service objects, concerns and callbacks resonate a lot.

📢 The RubyMine team is hosting a live AMA session on Reddit on Thursday! You're invited to join us! 📅 December 11 ⏰ 13 pm CET 📍 r/JetBrains 🎤@pogrebno_dev, @niklas_wortmann, @rubymine Save the date and drop your questions at jb.gg/yg71ro

✨ RubyMine 2025.3 Beta Is Out! 🔸 Smarter completion for qualified constants 🔸 Bundler is now installed in the console 🔸 Faster startup for multi-module projects 🔸 Fixes for IRB, Remote Docker SDK on Windows, JRuby debugging, and more! Try it now 👉 jb.gg/vrkb38

🚀Gemini 3 Pro is now live in JetBrains IDEs! It powers AI Chat today – and will soon be available in Junie, our coding agent. Expect deeper reasoning, stronger instruction following, and multimodal understanding. Try it today! 🔗 jb.gg/lai8mj

@koichi0814 RubyMine is free for non-commercial use. Learn more: blog.jetbrains.com/ruby/2025/09/r…

RubyMineって無料で使えたっけ？

Claude Agent is now available in your JetBrains IDE’s AI chat! ✨ The new agent leverages @AnthropicAI models, including the freshly released Claude 4.5 Sonnet. ✨ No extra plugins. No extra subscriptions. Just advanced AI coding built in. Learn more 👉 jb.gg/l7lx7b

AI doesn't always deliver the results that professional developers need, and to improve it, we need information about how our IDEs are used. We are changing our approach to data collection so you can help us – but only if you wish to. 👉 jb.gg/data_sharing

😈 Crashzilla is lurking around your Ruby code… RubyMine is FREE for non-commercial use! ❓What do you think the output of this code will be? #CrashzillaVsRubyMine #RubyMine #FreeRubyMine

Thank you @jetbrains for the slippers and congratulations on making RubyMine fully free for non-commercial use! Elixir version coming when?!