diff --git a/templates/zerver/api/changelog.md b/templates/zerver/api/changelog.md
index 8c676362c7..0e38dd2a9d 100644
--- a/templates/zerver/api/changelog.md
+++ b/templates/zerver/api/changelog.md
@@ -10,6 +10,11 @@ below features are supported.
 
 ## Changes in Zulip 4.0
 
+**Feature level 35**
+
+* The peer_add and peer_remove subscription events now have plural
+  versions of `user_ids` and `stream_ids`.
+
 **Feature level 34**
 
 * [`POST /register`](/api/register-queue): Added a new `wildcard_mention_policy`
diff --git a/version.py b/version.py
index ba25ad1946..623ec305c1 100644
--- a/version.py
+++ b/version.py
@@ -29,7 +29,7 @@ DESKTOP_WARNING_VERSION = "5.2.0"
 #
 # Changes should be accompanied by documentation explaining what the
 # new level means in templates/zerver/api/changelog.md.
-API_FEATURE_LEVEL = 34
+API_FEATURE_LEVEL = 35
 
 # Bump the minor PROVISION_VERSION to indicate that folks should provision
 # only when going from an old version of the code to a newer version. Bump