diff --git a/releasenotes/notes/rm-function-chat-role-ab401a1fb19713a7.yaml b/releasenotes/notes/rm-function-chat-role-ab401a1fb19713a7.yaml
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index 0000000000..3636728653
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+++ b/releasenotes/notes/rm-function-chat-role-ab401a1fb19713a7.yaml
@@ -0,0 +1,5 @@
+---
+upgrade:
+  - |
+    The deprecated `FUNCTION` role has been removed from the `ChatRole` enum. Use `TOOL` instead.
+    The deprecated class method `ChatMessage.from_function` has been removed. Use `ChatMessage.from_tool` instead.