January 2026: Implemented foundational custom-domain capabilities across the platform, enabling customers to map their own domains to sandboxed environments and applications. Delivered Sandbox Custom Domain Support in modal-client and extended Custom Domain support across modal-labs/libmodal, aligning API surfaces, protocol definitions, and tooling. Improved configuration flexibility, consistency of terminology, and build stability, delivering measurable business value in branding, migration, and deployment workflows.

July 2025 — Delivered Asynchronous Snapshot Feature for modal-labs/modal-client. Implemented new protobuf definitions for async worker snapshots and updated the filesystem snapshots API to standardize and simplify async operations by removing request timeouts and adjusting response types. These changes enable non-blocking snapshot processing, improve throughput, and reduce orchestration complexity.

June 2025 monthly summary focusing on key accomplishments in two repositories. Key outcomes include a UX improvement for Slack secret setup documentation and a robustness fix for asynchronous IO streams in the sandbox within the client library. The changes reduce onboarding friction, increase runtime reliability, and improve test coverage across modal-examples and modal-client.