hexnumber: added release notes line
@@ -59,7 +59,8 @@ We added even more functionality, which could not make it to the highlights:
## New Plugins
-- <<TODO>>
+- The plugin [hexnumber](https://www.libelektra.org/plugins/hexnumber) has been added. It can be used
+ to hexadecimal values into decimal when read, and back to hexadecimal when written.
- <<TODO>>
- <<TODO>>
