---
title: "GitHub Some Git over HTTPS may temporarily require authentication: 2026-10-19 | Harbyn"
description: "GitHub Some Git over HTTPS may temporarily require authentication, announced Oct 19, 2026."
canonical: "https://harbyn.com/changes/github/2026-10-19-some-git-over-https-may-temporarily-require-authentication"
last-updated: 2026-10-25
---

# GitHub Some Git over HTTPS may temporarily require authentication

Markdown version of <https://harbyn.com/changes/github/2026-10-19-some-git-over-https-may-temporarily-require-authentication>.

Behavior change - GitHub. medium severity. In effect.

During periods of unusual traffic, some unauthenticated clones and fetches of public repositories over HTTPS may fail because authentication is temporarily required. Authenticated HTTPS operations, SSH operations, and pushes are unaffected.

## Facts

| Fact | Value |
| --- | --- |
| Vendor | [GitHub](https://harbyn.com/vendors/github.md) |
| Kind | Behavior change |
| Severity | medium |
| Status | In effect |
| Announced | Oct 19, 2026 |
| Added to Harbyn | Oct 25, 2026 |
| Lead time | No dated deadline |
| Vendor page | <https://github.blog/changelog/2026-10-19-some-git-over-https-may-temporarily-require-authentication> |
| Review | Reviewed by a person, extracted by a model |

## Find it in your code

```sh
npx harbyn scan
```

This change names no identifier the scanner can match line by line, so the scan tells you whether your repository uses GitHub, from its packages and API hosts. Nothing leaves your machine.

## Sources

Where this event comes from: the page we read, when we read it, and the hash of that snapshot.

- <https://github.blog/changelog/feed/> (changelog, fetched 2026-10-19 16:29 UTC, sha256 `395df307c0a7a172c29d14b552129c517d7d24e6f03ea4b5565db971db6bc89c`)

## Related changes

### More from GitHub

- [Intel-based Mac support deprecation](https://harbyn.com/changes/github/2026-10-19-codeql-changes-for-macos-27-xcode-27-and-swift-6-4.md) (Deprecation, effective Dec 2026)
- [CodeQL tracing and Swift support changes](https://harbyn.com/changes/github/2026-10-19-codeql-changes-for-macos-27-xcode-27-and-swift-6-4-2.md) (Breaking change, announced Oct 19, 2026)
- [GitHub Copilot models deprecated](https://harbyn.com/changes/github/2026-10-19-github-copilot-models-deprecated-on-october-19-2026.md) (Deprecation, effective Oct 19, 2026)
- [Dismissal-request webhooks include request number](https://harbyn.com/changes/github/2026-10-20-updates-to-github-secret-scanning.md) (Behavior change, announced Oct 20, 2026)

### Changes at other vendors

- [Amazon Selling Partner API: ORDER\_CHANGE notifications add PreFulfillmentStatusChange for Amazon Autos](https://harbyn.com/changes/amazon-sp-api/2026-10-14-sp-api-updates-new-listings-items-api-ivp-values-in-eu5-jp-and-ca-stores-oct-3.md) (effective Oct 28, 2026)
- [BigCommerce: 301 redirects will apply only to storefront channels](https://harbyn.com/changes/bigcommerce/2026-10-07-301-redirects-now-apply-to-storefront-channels-only.md) (effective Nov 10, 2026)
- [Jira / Atlassian Cloud: New IP address ranges in use from January 1, 2027](https://harbyn.com/changes/atlassian-jira/2026-10-16-atlassian-cloud-adds-new-ip-address-ranges.md) (effective Jan 1, 2027)
- [Let's Encrypt: Default certificate lifetime changes to 64 days](https://harbyn.com/changes/letsencrypt/2026-10-07-64-day-certificate-lifetimes-coming-feb-2027.md) (effective Feb 10, 2027)

[All upcoming deadlines](https://harbyn.com/deadlines.md)