What we shipped this month: May 2026 Edition

Courier's May 2026 update introduced significant enhancements across its platform, bridging the gap between software development and message delivery through five key launches. These updates include the general availability of the AI Agent in Journeys, which allows for tailored user experiences by classifying users and automating content generation without manual logic. The Journeys API enables the creation of customer journeys via code, facilitating integration with coding agents like Claude Code and Codex, allowing for version-controlled, programmatically generated journeys. Custom Environments provide separate stages for development, testing, and production, allowing template and journey management similar to application code. Design Studio now offers more advanced styling options, enabling brand-consistent email designs without the need for CSS overrides. Additionally, Courier Console v3 received a complete redesign for improved navigation and data visibility, enhancing user experience with features like light and dark modes and more detailed metrics. These updates collectively enhance the automation and integration capabilities of Courier, aligning messaging workflows with modern software engineering practices.

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