GitHubGitHub retires SHA-1 in HTTPS
An infrastructure change to check if older clients can no longer connect.
What changed
GitHub says SHA-1 is now disabled in HTTPS for github.com and partner CDNs, including GitHub Enterprise Cloud and its data residency offering.
What to know
- GitHub Enterprise Server is unaffected, according to the announcement.
- If an older integration fails, review GitHub’s linked technical guidance and client compatibility.
Source note
ClawIsOpen summary of the official announcement, published September 15, 2026.
Sources & last check
- Original publisher or organizer source. Checked 2026-09-16 · Published 2026-09-15