Node.js 20.20.1 LTS ('Iron') has been released on March 5, 2026. Notable changes include build testing on Python 3.14, root certificate updates to NSS 3.117 and 3.119, and an upgrade of OpenSSL sources to 3.0.19. Additional fixes cover a deepEqual URL bug in assert, Windows SRV DNS resolution, HTTP keep-alive timeout, HTTP/2 window size validation, and a Windows path resolution bug. Multiple dependency updates are included: V8 backport, ICU 78.2, zlib, acorn, llhttp, corepack, minimatch, and timezone data.
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