Runtime Lifecycle Briefing — Node.js 21 End of Life
Node.js 21 reached end of life on 1 June 2024 as part of the project’s odd-numbered release cadence, requiring teams to migrate CI and workloads to supported Node 20 or Node 22 versions.
Executive briefing: Support for Node.js 21 ended on , concluding security and stability updates for the short-term release line.
Impact
- No more patches. CVEs reported after the cutoff will not be fixed for Node 21 binaries.
- Tooling alignment. Cloud images, package repositories, and CI providers remove Node 21 as default options.
- Release cadence. Node 22 becomes the active current line with an LTS transition in October 2024.
Required actions
- Update build matrices, Dockerfiles, and serverless configurations to use Node 20 LTS or Node 22 current.
- Notify application teams that staging and production environments must remove Node 21 artifacts to maintain vulnerability compliance.
- Track the Node.js release schedule to prepare for the Node 22 LTS promotion later in 2024.