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Step-by-step guide to enabling Argon2 with has_secure_password in Rails. Migrate from BCrypt with zero downtime using the Hybrid Verifier pattern in production.

Concrete benchmarks and patterns for Rails performance in 2026 - YJIT speedups, Rails 8 query optimization, Redis caching, and N+1 elimination.

Rails 8 defaults to Solid Cache, Solid Queue, and Solid Cable. Most apps don't need Redis anymore. Some still do. Here's how we decide which workloads stay.

Rails 8.1's ActiveJob::Continuable resumes long jobs from their last completed step. How to wire it in, when not to, why Kamal deploys stop losing work.

Rails 8.1 replaces log parsing with structured events. Wire ActiveSupport::Notifications to Datadog, New Relic, or Prometheus - no regex required.

CVSS 8.1 universal RCE chain through ERB::DeprecatedInstanceVariableProxy and Marshal.load. Detection, upgrade path, Rails 7.0/7.1 EOL options.

Production patterns for Solid Queue: custom retry strategies, concurrency tuning, worker pool sizing, dead letter queues, and monitoring. Working Rails 8 config examples.

Master Hotwire Turbo 8 performance optimization for real-time Rails applications. Complete guide with advanced patterns, benchmarks, and production deployment strategies.

How one Ruby method change from gsub to tr cut CPU usage by 40%. Real examples of small method choices that cascade into big performance wins in Rails apps.

For Ruby on Rails developers looking to level up their database query skills, Rails 7.1 introduced a...