diff --git a/.changelog/11600.txt b/.changelog/11600.txt
new file mode 100644
index 000000000000..f7a18c717103
--- /dev/null
+++ b/.changelog/11600.txt
@@ -0,0 +1,3 @@
+```release-note:improvement
+core: The unused protocol_version agent configuration value has been removed.
+```