Login broken on iOS 27 dev preview

[alex-mextner]

🏷️ Discussion Type

Bug

💬 Feature/Topic Area

iOS

Body

After updating to Apple iOS 27 developer preview GitHub app logged out. Login cycles to logout too. Tried many times. Reinstallation doesn’t help

I have latest version of app.

iPhone 15 pro

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[roshhellwett]

Since iOS 27 is still in early dev preview, it’s very likely the GitHub app isn’t fully targeting that SDK yet, so auth/session handling can break in weird ways. For now I’d treat this as an OS‑beta compatibility issue rather than something you can fix locally – you’ve already tried the right things (reinstall, re‑login). If you haven’t yet, you might also try:

Disabling any VPN / DNS filter / system‑wide content blocker temporarily

Checking if login via Safari to github.com works consistently with the same account

If the issue only reproduces in the app on the iOS 27 build and not on a stable iOS device, it’s probably on GitHub’s side to patch once they add support for that preview.

[megatimes]

Also experiencing this in ios 26.5