Add release notes for Wagtail 2.9.1

CHANGELOG.txt

@@ -56,6 +56,11 @@ Changelog
  * Fix: Remove use of Node.forEach for IE 11 compatibility in admin menu items (Thibaud Colas)
 
 
+2.9.1 (xx.xx.xxxx) - IN DEVELOPMENT
+~~~~~~~~~~~~~~~~~~
+
+ * Fix: Fix incorrect method name in SiteMiddleware deprecation warning (LB (Ben Johnston))
+
 2.9 (04.05.2020)
 ~~~~~~~~~~~~~~~~
 

docs/releases/2.9.1.rst

@@ -0,0 +1,16 @@
+===========================
+Wagtail 2.9.1 release notes
+===========================
+
+.. contents::
+    :local:
+    :depth: 1
+
+
+What's new
+==========
+
+Bug fixes
+~~~~~~~~~
+
+ * Fix incorrect method name in SiteMiddleware deprecation warning (LB (Ben Johnston))

docs/releases/index.rst

@@ -6,6 +6,7 @@ Release notes
 
    upgrading
    2.10
+   2.9.1
    2.9
    2.8.2
    2.8.1