Python 3.10 and Node 20 reach end of life: how to find pinned versions

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Python 3.10 reaches end of life on October 31, 2026, and Node 20 already reached it on April 30, 2026. Ending support does not stop software from running, but security patches for new vulnerabilities will no longer be released. Because these runtime versions are often pinned in several files such as Dockerfiles, version files, and serverless configs, the article recommends auditing the whole codebase with a search. The author suggests choosing a runtime version with years of support remaining and notes Node 22 is supported until April 30, 2027. The piece also promotes a daily automated check that flags pinned versions 180 days before their end-of-life dates, while leaving the decision to upgrade to developers.

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