diff --git a/CHANGELOG.md b/CHANGELOG.md
index 05d0965b8670..2f73b453ccd9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,9 @@
   each individual net device will emit metrics under the label `"net_{iface_id}"`.
   E.g. the associated metrics for the endpoint `"/network-interfaces/eth0"` will
   be available under `"net_eth0"` in the metrics json object.
+- [#4063](https://github.com/firecracker-microvm/firecracker/pull/4063):
+  Adds source-level instrumentation based tracing. See
+  [tracing](./docs/tracing.md) for more details.
 
 ### Changed