diff --git a/CHANGELOG.md b/CHANGELOG.md
index b51879b..c0e0041 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Breaking Changes
 
+- Remove the `dat` intermediary directory in file storage ([#39][])
 - Add `delete_app_keys` and `delete_auth_keys` syscalls. ([#33][])
 
   - `delete_all_pins` now doesn't affect application keys
@@ -36,6 +37,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [#35]: https://github.com/trussed-dev/trussed-auth/pull/35
 [#36]: https://github.com/trussed-dev/trussed-auth/pull/36
 [#37]: https://github.com/trussed-dev/trussed-auth/pull/37
+[#39]: https://github.com/trussed-dev/trussed-auth/pull/39
 
 ## [0.2.2][] - 2023-04-26