Learn how to minimize risks when performing significant refactors by testing, control rollout with feature flags, and enable observability in production environments. Discover how Propel leverages combinatorial and differential testing, shadow testing, feature flags, and observability using OpenTelemetry, Honeycomb, and LaunchDarkly.

How we use deployment notes to communicate changes internally, improve customer communication, and aid in incident response.

Apollo Server 3 is officially deprecated, so it’s time to upgrade to Apollo Server 4. This post explains the expected and unexpected changes