docs: update calendar, add news item and link release notes for 18.1.6
Signed-off-by: Dylan Baker <dylan@pnwbakers.com>
diff --git a/docs/relnotes.html b/docs/relnotes.html
index 9d4a262..b339930 100644
--- a/docs/relnotes.html
+++ b/docs/relnotes.html
@@ -21,6 +21,7 @@
</p>
<ul>
+<li><a href="relnotes/18.1.6.html">18.1.6 release notes</a>
<li><a href="relnotes/18.1.5.html">18.1.5 release notes</a>
<li><a href="relnotes/18.1.4.html">18.1.4 release notes</a>
<li><a href="relnotes/18.1.3.html">18.1.3 release notes</a>