diff --git a/CHANGELOG.md b/CHANGELOG.md
index f75731f..d27ef9f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Implemented OAuth 2.0 refresh token flow for IMAP and SMTP, which means that access tokens are now automatically refreshed and is transparent for users.
+- Added `imap-oauth2-redirect-host` and `smtp-oauth2-redirect-host` options to customize the redirect server host name (default: `localhost`).
+- Added `imap-oauth2-redirect-port` and `smtp-oauth2-redirect-port` options to customize the redirect server port (default: `9999`).
+
 ## [0.8.0] - 2023-06-03
 
 ### Added