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SHA-1 in HTTPS on GitHub sunset

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Previously we announced we would be disabling SHA-1 in HTTPS for GitHub on September 15th, 2026.

Following the planned schedule, GitHub has disabled SHA-1 in HTTPS for github.com and partner CDNs, including GitHub Enterprise Cloud and GitHub Enterprise Cloud with Data Residency. GitHub Enterprise Server is unaffected. Please see the previous announcement for more information.

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