Add a couple entries to the release notes

The date still needs to be updated when this is actually released.

RELEASE-NOTES.md

@@ -1,9 +1,11 @@
 ZeroTier Release Notes
 ======
 
-## WORK-IN-PROGRESS
+## XXXX-XX-XX -- Version 1.16.1
 
   * Metrics collection is now disabled by default. It can be enabled via the `enableMetrics` setting in `local.conf`.
+  * Fix for an issue where metrics were not being recorded while running in daemon mode.
+  * Fix debug dumpfile being written to the root directory.
 
 ## 2025-08-21 -- Version 1.16.0