March 2026 — Security-driven dependency hardening across facebook/metro and facebook/react-native. Focused on mitigating CVEs and stabilizing the dependency graph with minimal churn. Key features delivered include targeted transitive upgrades and careful release planning, supported by thorough reviews and traceability. Key features delivered: - Minimatch security upgrade to 3.1.4 across metro to address CVE-2026-27903/27904 and across react-native to align with RN upgrade work, improving security and stability. - Dependency-chain hardening in metro: upgraded @pnpm/npm-conf from 2.3.1 to 3.0.2 via a controlled nudging of registry-auth-token from 5.1.0 to 5.1.1, avoiding unnecessary major version changes. - Security hardening in react-native: fast-xml-parser upgraded from 4.5.0 to 4.5.4 to fix CVE-2026-25896, plus alignment of minimatch to 3.1.4 to close CVEs. Major bugs fixed: - CVE-2026-25896 addressed by upgrading fast-xml-parser in react-native (RN). - CVE-2026-27903/27904 addressed by upgrading minimatch across metro and RN. Overall impact and accomplishments: - Reduced security exposure across two core repos, strengthened supply-chain security, and stabilized build pipelines with traceable changes. Improved maintainability and risk posture for ongoing security operations. Technologies/skills demonstrated: - Transitive dependency management, semver-driven upgrade strategy, and minimal churn approaches. - Security vulnerability remediation, cross-repo coordination, and thorough commit messaging with Differentials/Reviews. - Build-pipeline stability improvements and governance-friendly change management.