diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index e668a401..99bdcd14 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -3,6 +3,8 @@ Changelog
 
 1.6.0 (UNRELEASED)
 ------------------
+* **BACKWARDS INCOMPATIBLE:** Removed support for Python 3.6.
+* Update ``libsodium`` to 1.0.20-stable.
 
 1.5.0 (2022-01-07)
 ------------------