March 2026 Monthly Summary Key features delivered: - Vespa Cloud Vault Access Rules improvements: API correctness, response handling, test alignment, and deployment simplification. - Vespa Build and Deployment Pipeline Enhancements: overhauled CI/CD with comprehensive scripts and Makefiles for building RPMs, Docker containers, and executing tests; improved error visibility and reliability. - Vault Access Control and API Key Usage Improvements: enforces control plane usage for rule modifications and enhances error messaging with API keys; introduces a new authentication flow. Major bugs fixed: - Deployment Process Reliability in sample-apps: resolved double deployment scenario, removed unnecessary comments, and simplified key management to improve deployment reliability. Overall impact and accomplishments: - Increased deployment reliability, security, and maintainability across Vespa projects; faster feedback loops and reduced operational friction; improved alignment with Vespa Cloud responses and standardized tooling for artifact publishing. Technologies and skills demonstrated: - CI/CD automation, Makefile-based builds, RPM and Docker packaging, script-driven deployment and testing pipelines; API integration and error handling; control plane authentication and secure secret handling.

February 2026 performance highlights across vespa-engine repositories: - Vespa CLI: default CBOR response format with dual CBOR/JSON query handling and content-type tests, enabling faster, consistent cross-client behavior. - Deployment reliability: configurable deployment timeout, warnings when configuration is ignored in production, and startup EOF retry improvements, backed by targeted tests. - Certificates: dynamic default CN generation and removal of OAuth requirement for certificate creation, simplifying ops and reducing friction. - JSON formatting: fixes to remove dangling objects and prevent trailing commas, ensuring valid outputs. - Quality & observability: switch CBOR to direct dependency, introduce a CLI tensor performance testing framework with portable tests, and enhance deployment monitoring in pyvespa with detailed status checks. Overall, these changes deliver stronger production readiness, improved runtime reliability, better developer experience, and clearer operational visibility across the Vespa platform.