diff --git a/release_notes.md b/release_notes.md
index 38afc603..fa300ead 100644
--- a/release_notes.md
+++ b/release_notes.md
@@ -18,6 +18,11 @@ This file tracks release notes for the loop client.
 
 #### Breaking Changes
 
+* Autoloop now defaults to a slow publication deadline (30 minutes after
+  initiation) to reduce fees. To revert to the previous behavior, users can run
+  `loop setparams --fast`, which causes swap HTLCs to be published immediately
+  after initiation.
+
 #### Bug Fixes
 
 #### Maintenance