This authenticator can be included to check the browser used via the browser-update code.

Currently it always returns success, but if the browser is too old, the resp. info page is shown on the first login screen.

By enabling test mode on the authenticator, the info screen can be configured to be always visible.

Use with Maven (>3) and JDK (>= 21).

mvn clean verify

Copy deployments/check-browser-update-authenticator-jar-with-dependencies.jar to /providers/ directory in Keycloak.

Add this authenticator to an authentication flow (I.E for the security admin console).

https://github.com/acomdigital/ for the first version!

• 0.4 - Updated for Keycloak 26.6.4 and updatebrowser 2026.07
• 0.3 - Updated for Keycloak 26.1.5 and updatebrowser 2025.07
• 0.2 - Updated for Keycloak 24.0.5