If you've searched for information about OpenID Connect (OIDC) Single Logout (SLO) in Liferay, you've probably come across answers stating that it isn't supported. That answer was accurate for a long time, and it still occasionally appears in support discussions today.

Beginning with Liferay DXP 2026.Q1, however, that answer is no longer correct.

Liferay now supports the OpenID Connect Back-Channel Logout specification, allowing an OpenID Provider (OP) to notify Liferay that a user's central authentication session has ended so the corresponding portal session can be terminated as well.