* [OpenFeature Go SDK v1.18.0](https://github.com/open-feature/go-sdk) – Go SDK providing a vendor-agnostic API for feature flag evaluation, providers, hooks, and context-aware targeting. * [flagd core/v0.16.2](https://github.com/open-feature/flagd) – Feature flag daemon supporting multiple data sources, real-time updates, and OpenFeature compliance.