Designing Safe Parallelism in Rails

Designing Safe Parallelism in Rails February 12, 2026 Eliminating Connection Pool Exhaustion in Production At Kaigi on Rails 2025, 片田恭平 (@katakyo) delivered a deeply practical talk titled: “もう並列実行は怖くない — コネクション枯渇解消のための実践的アプローチ” (“Parallel Execution Is No Longer Scary — A Practical Approach to Eliminating Connection Pool Exhaustion”) もう並列実行は怖くない__コネクション枯渇解消のための実践的ア… This session explored a real-world scaling problem inside … Continue reading Designing Safe Parallelism in Rails →

Rails Meets PostgreSQL 18

February 11, 2026 Compatibility, Protocol Changes, and Virtual Generated Columns in Rails 8.1 At Kaigi on Rails 2025, Rails Committer Yasuo Honda delivered a deep technical walkthrough titled: Rails meets PostgreSQL 18 PostgreSQL 18 was officially released on September 25, 2025, and the talk explains how Rails adapts — not just at the marketing level, … Continue reading Rails Meets PostgreSQL 18 →

When Maps Explain Themselves: Legends, Style, and Finished Images in Ruby

February 10, 2026 Introduction libgd-gis now supports legends, introducing a fundamental building block in map communication. With the release of v0.4.1, legends become a first-class feature of the rendering pipeline, pushing the library one step closer to covering the essential capabilities expected from a modern GIS engine. Legends are not just a visual accessory. They … Continue reading When Maps Explain Themselves: Legends, Style, and Finished Images in Ruby →

Only 3% Got It Right: 5 Dangerous Ruby on Rails Code Patterns from RubyKaigi

Only 3% Got It Right: 5 Dangerous Ruby on Rails Code Patterns from RubyKaigi February 9, 2026 At RubyKaigi 2025, a deceptively simple Rails code quiz was presented at a booth. It looked like everyday production code — nothing exotic, no trick questions. About 100 developers attempted it. Only 3 answered everything correctly. This article … Continue reading Only 3% Got It Right: 5 Dangerous Ruby on Rails Code Patterns from RubyKaigi →