Node.js 10

Node.js 10 updated the embedded V8 engine and made newer JavaScript features available to applications, including async iteration, object rest/spread properties, and regular-expression lookbehind. It bundled npm 6 rather than the npm version shipped with the preceding Node.js line. Over the course of the cycle, Node.js also introduced experimental Worker Threads, experimental promise-based fs APIs, and diagnostic reports; HTTP/2 support matured during the line. These additions expanded the platform, but APIs marked experimental in Node.js 10 should not be treated as having the same compatibility guarantees as its stable APIs.

Node.js 10 has reached end of life, so Node.js no longer provides security fixes, bug fixes, or compatibility maintenance for this line. A service remaining on it retains an older V8, OpenSSL integration, bundled npm generation, and platform behavior while dependencies, operating-system images, CI tooling, and hosted build environments increasingly target newer Node.js releases. This raises the chance that newly discovered runtime vulnerabilities remain unpatched, dependency updates cannot be adopted, native modules fail to build or load, and an eventual upgrade becomes larger because application and operational changes accumulate.

Plan a move to an actively supported Node.js major line, preferably the organization’s chosen current LTS line. Inventory every runtime location, including production containers or hosts, CI jobs, developer tooling, serverless configuration, and scripts that invoke node or npm. Run the application and its full test suite under the target version, update dependencies and lockfiles as needed, and check for changed or deprecated Node.js APIs, npm behavior, TLS behavior, and unhandled-promise assumptions. Rebuild and test native addons and review node-gyp, compiler, and base-image requirements. Deploy through a staged environment with representative traffic and observability before replacing Node.js 10 in production.