diff --git a/doc/notes/notes-current.rst b/doc/notes/notes-current.rst
index 6a63c53167..7be73d9f07 100644
--- a/doc/notes/notes-current.rst
+++ b/doc/notes/notes-current.rst
@@ -49,6 +49,9 @@ Bug Fixes
   could hang the transfer on the secondary, especially when the
   connection is unstable. This has been fixed. :gl:`#3867`
 
+- Performance of DNSSEC validation in zones with many DNSKEY records
+  has been improved. :gl:`#3981`
+
 Known Issues
 ~~~~~~~~~~~~