1 files changed, 12 insertions, 11 deletions
diff --git a/UPGRADE.rst b/UPGRADE.rst
index 22edfe0d60..6f628a6947 100644
--- a/UPGRADE.rst
+++ b/UPGRADE.rst
@@ -88,20 +88,21 @@ for example:
Upgrading to v1.27.0
====================
-Changes to callback URI for OAuth2 / OpenID Connect
----------------------------------------------------
+Changes to callback URI for OAuth2 / OpenID Connect and SAML2
+-------------------------------------------------------------
-This version changes the URI used for callbacks from OAuth2 identity providers. If
-your server is configured for single sign-on via an OpenID Connect or OAuth2 identity
-provider, you will need to add ``[synapse public baseurl]/_synapse/client/oidc/callback``
-to the list of permitted "redirect URIs" at the identity provider.
+This version changes the URI used for callbacks from OAuth2 and SAML2 identity providers:
-See `docs/openid.md <docs/openid.md>`_ for more information on setting up OpenID
-Connect.
+* If your server is configured for single sign-on via an OpenID Connect or OAuth2 identity
+ provider, you will need to add ``[synapse public baseurl]/_synapse/client/oidc/callback``
+ to the list of permitted "redirect URIs" at the identity provider.
-(Note: a similar change is being made for SAML2; in this case the old URI
-``[synapse public baseurl]/_matrix/saml2`` is being deprecated, but will continue to
-work, so no immediate changes are required for existing installations.)
+ See `docs/openid.md <docs/openid.md>`_ for more information on setting up OpenID
+ Connect.
+
+* If your server is configured for single sign-on via a SAML2 identity provider, you will
+ need to add ``[synapse public baseurl]/_synapse/client/saml2/authn_response`` as a permitted
+ "ACS location" (also known as "allowed callback URLs") at the identity provider.
Changes to HTML templates
-------------------------
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