release_notes: add grpc error code surfacing

carlaKC · carlaKC · commit b8f1fd1c4e6e · 2021-07-19T10:28:35.000+02:00
diff --git a/release_notes.md b/release_notes.md
@@ -19,3 +19,7 @@ This file tracks release notes for the loop client.
 #### Breaking Changes
 
 #### Bug Fixes
+* Grpc error codes returned by the swap server when swap initiation fails are 
+  now surfaced to the client. Previously these error codes would be returned
+  as a string.
+
