diff --git a/CHANGELOG.md b/CHANGELOG.md
index 617c18b8..01f9884e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # CHANGELOG
 
+## v0.4.38
+
+FEATURE: Conditionally enable interstitial page based on `User-Agent` prefix list. See the [template configuration](etc/frontend.yml) for details on the new configuration structure (https://github.com/openziti/zrok/issues/715) 
+
+CHANGE: The interstitial configuration has been modified from a simple `interstitial: <bool>` to a richer structure, but the config version has not been incremented; this feature has not been widely adopted yet.
+
 ## v0.4.37
 
 FIX: Fix for setting the `zrok_interstitial` cookie on Chrome-based browsers.
diff --git a/etc/frontend.yml b/etc/frontend.yml
index 7ea7e861..ecf723a9 100644
--- a/etc/frontend.yml
+++ b/etc/frontend.yml
@@ -10,10 +10,19 @@ v: 3
 #
 #host_match: zrok.io
 
-# Setting the `interstitial` setting to `true` will allow this frontend to offer interstitial pages if they are
-# configured on the share by the controller.
+# Configure interstitial pages for this frontend. The interstitial page presents a warning to internet users, alerting
+# them to the fact that they're visiting a zrok share.
 #
-#interstitial: true
+#interstitial:
+#  # Enable or disable interstitial pages on this frontend.
+#  #
+#  enabled: true
+#
+#  # Specify a list of User-Agent prefixes that should receive the interstitial page. If interstitial pages are enabled
+#  # and this list is not set, all user agents will receive an interstitial page.
+#  #
+#  user_agent_prefixes:
+#    - "Mozilla/5.0"
 
 # The OAuth configuration is used when enabling OAuth authentication with your public frontend.
 #