During January 2026, Andrii Ruban focused on backend maintenance for the basecamp/fizzy repository, addressing a Rails deprecation issue related to CSRF protection. He updated the unsubscribe and Stripe webhook controllers by replacing the deprecated skip_before_action :verify_authenticity_token with skip_forgery_protection, ensuring compatibility with the latest Ruby on Rails framework. This change reduced security risks and eliminated deprecation warnings, directly improving the reliability of unsubscribe flows and webhook integrations. Andrii consolidated the update into a single, traceable commit, demonstrating attention to maintainability. His work leveraged Ruby and backend development skills to prepare the codebase for future Rails upgrades and ongoing support.