diff --git a/CHANGELOG.md b/CHANGELOG.md
index c8ecf6a..8456653 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 **unreleased**
 - Introduced `squelch_auto_margin` config option that allows configuring the auto squelch level
 - Removed `port` configuration option; `rtltcp_compat` takes the port number with the new connectors
+- Added support for new WSJT-X modes FST4 and FST4W (only available with WSJT-X 2.3)
 - New devices supported:
   - HPSDR devices (Hermes Lite 2)
   - BBRF103 / RX666 / RX888 devices supported by libsddc
diff --git a/debian/changelog b/debian/changelog
index 1bef262..c7dc727 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -3,6 +3,8 @@ openwebrx (0.21.0) UNRELEASED; urgency=low
     auto squelch level
   * Removed `port` configuration option; `rtltcp_compat` takes the port number
     with the new connectors
+  * Added support for new WSJT-X modes FST4 and FST4W (only available with
+    WSJT-X 2.3)
   * New devices supported:
     - HPSDR devices (Hermes Lite 2) (`"type": "hpsdr"`)
     - BBRF103 / RX666 / RX888 devices supported by libsddc (`"type": "sddc"`)