diff --git a/architecture/additional_concepts/authentication.adoc b/architecture/additional_concepts/authentication.adoc
index ca2327b5e7d7..63f7472be47b 100644
--- a/architecture/additional_concepts/authentication.adoc
+++ b/architecture/additional_concepts/authentication.adoc
@@ -87,30 +87,6 @@ the `system:anonymous` virtual user and the `system:unauthenticated` virtual
 group to the request. This allows the authorization layer to determine which
 requests, if any, an anonymous user is allowed to make.
 
-[[authentication-impersonation]]
-=== Impersonation
-A request to the {product-title} API may include an *Impersonate-User* header,
-which indicates that the requester wants to have the request handled as though
-it came from the specified user. This can be done on the command line by passing
-the `*--as=username*` flag.
-
-Before User A is allowed to impersonate User B, User A is first authenticated.
-Then, an authorization check occurs to ensure that User A is allowed to
-impersonate the user named User B. If User A is requesting to impersonate a
-service account (*system:serviceaccount:namespace:name*), {product-title} checks
-to ensure that User A can impersonate the *serviceaccount* named *name* in
-*namespace*. If the check fails, the request fails with a 403 (Forbidden) error
-code.
-
-By default, project administrators and editors are allowed to impersonate
-service accounts in their namespace. The *sudoers* role allows a user to
-impersonate *system:admin*, which in turn has cluster administrator permissions.
-This grants some protection against typos (but not security) for someone
-administering the cluster. For example, `oc delete nodes --all` would be
-forbidden, but `oc delete nodes --all --as=system:admin` would be allowed. You
-can add a user to that group using `oadm policy add-cluster-role-to-user sudoer
-<username>`.
-
 [[oauth]]
 
 == OAuth
diff --git a/architecture/revhistory_architecture.adoc b/architecture/revhistory_architecture.adoc
index b124c8068b15..fba637af8fff 100644
--- a/architecture/revhistory_architecture.adoc
+++ b/architecture/revhistory_architecture.adoc
@@ -6,6 +6,21 @@
 :experimental:
 
 // do-release: revhist-tables
+== Wed Jun 15 2016
+
+// tag::architecture_wed_jun_15_2016[]
+[cols="1,3",options="header"]
+|===
+
+|Affected Topic |Description of Change
+//Mon May 30 2016
+|link:../architecture/additional_concepts/authentication.html[Additional Concepts -> Authentication]
+|Removed the Impersonation section, which does not apply to {product-title} 3.1.
+
+|===
+
+// end::architecture_wed_jun_15_2016[]
+
 == Fri Jun 10 2016
 
 // tag::architecture_fri_jun_10_2016[]
@@ -37,9 +52,7 @@
 |Affected Topic |Description of Change
 //Mon May 30 2016
 |link:../architecture/additional_concepts/authentication.html[Additional Concepts -> Authentication]
-|Added the link:../architecture/additional_concepts/authentication.html#authentication-impersonation[Impersonation] section.
-
-
+|Added the Impersonation section.
 
 |===
 
diff --git a/welcome/revhistory_full.adoc b/welcome/revhistory_full.adoc
index a955d27205a5..e9920351152e 100644
--- a/welcome/revhistory_full.adoc
+++ b/welcome/revhistory_full.adoc
@@ -10,6 +10,10 @@ date.
 
 // do-release: revhist-tables
 
+== Wed Jun 15 2016
+.Architecture
+include::architecture/revhistory_architecture.adoc[tag=architecture_wed_jun_15_2016]
+
 == Mon Jun 13 2016
 .Installation and Configuration
 include::install_config/revhistory_install_config.adoc[tag=install_config_mon_jun_13_2016]