Mark 2.18.4 as released (#2553)

dstansby · web-flow · commit 2ab280aef94a · 2024-12-12T15:59:53.000Z
diff --git a/docs/release.rst b/docs/release.rst
@@ -20,8 +20,8 @@ Release notes
 
 .. _release_2.18.4:
 
-2.18.4 (unreleased)
--------------------
+2.18.4
+------
 
 Enhancements
 ~~~~~~~~~~~~
