Last week we celebrated the 10th anniversary of our Merkle Tree. 🎂🎂 Happy Birthday Keybase. Thanks to the whole team for keeping this thing chugging.

Pretty smooth upgrade last night, but we hit some issues with KBFS this morning. KBFS will be in read-only mode until Merkle Trees are rebuilt. Might take up to 24 hours. Thanks for your patience.

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Keybase will be unavailable tonight starting at 9:30pm ET for scheduled maintenance. We anticipate a few hours of downtime.

The macOS and Windows versions we rushed out last night (v6.2.4) has an updater with the old (expired) root CA, so automated updates off of v6.2.4 will fail. Only a manual update can fix this issue. Thanks for your patience, and Happy New Year!.

Keybase app for iOS is now updated in the app store. Update to get a fix for TLS connection issues. All apps are again fully operational. One last thing: those on macOS or Windows v6.2.4 should manually upgrade to 6.2.5 via reinstall from

Updated Android app available via Google Play store. Updated Linux app available from your package managers as usual. They should both work now. We're waiting on Apple to review and approve the iOS app, and then all versions should be fixed.

Looks for updated iOS, Android and Linux apps to be released soon. Get them via app stores (or package managers) as normal.

(BTW, the root cause of the outage was that the root CA we ship with the Keybase client expired after 10 years of valiant service. We have some internal dependencies on Keybase working, so recovery was complicated.).

Windows app released with fix. As with macOS, the updater won't work, so you'll need to download a new app from KBFS is back up and running.

Small update: macOS builds are working again, but the updater is busted, for the same reason the app stopped working. So re-download Keybase from and reinstall. We're working on the other apps as fast as we can. Also, KBFS is still down.

Hi friends, Happy New Year! We are aware of an outage and working on a fix.

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