February 2026 (prestodb/presto): Key feature delivered: Security and Compatibility Enhancement via dependency upgrades to Apache Arrow 18.3.0 and protobuf-java 4.30.x, enabling stronger security posture and better compatibility with inherited connectors. Major bugs fixed: none reported this month; upgrade mitigates vulnerabilities and encoding/gencode risks associated with older dependencies. Overall impact: Enhanced security, smoother inherited connector integration, and improved long-term maintainability; validated via end-to-end tests including Flight server connectivity and schema retrieval. Technologies/skills demonstrated: dependency management, security-focused upgrades, Apache Arrow and protobuf ecosystems, integration testing, and adherence to release notes and contributor guidelines.