diff --git a/USER_MANUAL.html b/USER_MANUAL.html
index 1a81a35d..17a5ba85 100644
--- a/USER_MANUAL.html
+++ b/USER_MANUAL.html
@@ -608,6 +608,11 @@ FMA - Supports FMA extensions using YMM state
- Add missed captures for pavucontrol related handlers (PR #420)
+Enhancements:
+
+- Add option to enable/disable Hamlib frequency/mode control. (PR #424)
+- Add option to enable/disable Space key for PTT. (PR #425)
+
V1.8.10.1 June 2023
diff --git a/USER_MANUAL.pdf b/USER_MANUAL.pdf
index 44d3e601..ebf61c70 100644
Binary files a/USER_MANUAL.pdf and b/USER_MANUAL.pdf differ