The brief
Node.js 26.13.0 is the release that moves the 26.x line into Long Term Support under the codename Lithium. The Node.js maintainers say this line will receive updates through the end of April 2029. For teams choosing a runtime version for production systems, the support transition is the meaningful news. This is not a feature-heavy runtime update: apart from metadata such as process.release that now reflects LTS status, the release includes no further changes from 26.12.1.
The release notes include one migration detail for teams moving from older LTS lines. Since Node.js 25, official Linux binaries have been linked against libatomic, which may need to be installed separately depending on the distribution. Check that dependency in deployment images and hosts before rolling forward from Node.js 24, 22 or an older line. The original Node.js release page provides the authoritative version and platform details.