Open Source Release v4.0.0
firebase.auth.UserCredential) returned by the following APIs:
firebase.auth.Auth.prototype.onIdTokenChanged method that triggers on ID token changes.firebase.auth.Auth.prototype.onAuthStateChanged now triggers on sign in and sign out.firebase.User.prototype.reauthenticate has been removed in favor of firebase.User.prototype.reauthenticateWithCredential.firebase.User.prototype.link has been removed in favor of firebase.User.prototype.linkWithCredential.firebase.AuthCredential.prototype.provider has been removed in favor of firebase.AuthCredential.prototype.providerId.serviceAccount and credential properties from the Node.js SDK. If you were previously using the Firebase Javascript SDK to use these properties, use the Firebase Admin Node.js SDK instead.firebase.User.prototype.getToken in favor of firebase.User.prototype.getIdToken.firebase.User.prototype.updateProfile was not triggering an update in password provider data.Fetched May 1, 2026