diff --git a/CHANGELOG.md b/CHANGELOG.md
index ea9c117adb..485068c60e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,7 +9,7 @@ IMPROVEMENTS:
 
 * agent: Added a `-disable-keyring-file` option to prevent writing keyring data to disk. [GH-3145]
 * agent: Added automatic notify to systemd on Linux after LAN join is complete, which makes it easier to order services that depend on Consul being available. [GH-2121]
-* agent: Added a new agent-level configuration option to default all HTTP requests to `?stale` mode. [GH-3142]
+* agent: Added a new agent-level configuration option to default all HTTP requests to `?stale` mode. As part of this change, the `http_api_response_headers` config has been moved into a new `http_config` struct, so the old form is still supported but is deprecated. [GH-3142]
 * dns: Added support for EDNS(0) size adjustments if set in the request frame. This allows DNS responses via UDP which are larger than the standard 512 bytes max if the requesting client can support it. [GH-1980, GH-3131]
 * server: Added a startup warning for servers when expecting to bootstrap with an even number of nodes. [GH-1282]
 * agent: (Consul Enterprise) Added support for non rotating, statically named snapshots for S3 snapshots using the snapshot agent.