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SHA-1 in HTTPS on GitHub sunset

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GitHub·Sep 15, 2026, 04:47 PMDeprecationMay break your integrationAI-assisted summary

Summary

GitHub disabled SHA-1 support for HTTPS on September 15 2026.
All HTTPS connections now require SHA‑256 or stronger, affecting any client still using SHA‑1 certificates.
Requests that rely on SHA‑1 may fail, requiring updates to use modern cryptographic hashes.

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Official source Last checked Sep 20, 2026, 4:03 PM

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