Monthly summary for 2026-03 focusing on delivered features, bug fixes, and overall impact. This period centers on enhancing Tempo's CLI integration with flexible authentication options, enabling smoother automation and integration workflows. Key features delivered: - Custom HTTP Headers Support for Tempo-CLI Query API: Introduced a new --header flag to tempo-cli query API commands, enabling users to send custom HTTP headers (e.g., authentication tokens) with API requests to improve flexibility and usability. Major bugs fixed: - No major bugs reported this month for grafana/tempo in the scope provided. Overall impact and accomplishments: - Enhanced integration capabilities for Tempo users and partners, reducing friction for authenticated API access and enabling more secure, token-based workflows. - Strengthened developer experience for CLI users by aligning the query API with common HTTP practices and header-based authentication patterns, accelerating automation and onboarding. Technologies/skills demonstrated: - Go/CLI tooling design and implementation for tempo-cli - API design considerations around HTTP headers and authentication flows - Version control discipline and clear commit messaging (example commit included) - Cross-team collaboration readiness through clear documentation and extensibility of the tempo query API.