diff --git a/CHANGES.md b/CHANGES.md
index 5f598559a..fb98c934c 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -11,10 +11,6 @@ If you have email notifications enabled, you should ensure that
 have installed customised templates, or leave it unset to use the default
 templates.
 
-The configuration parser will try to detect the situation where
-`email.template_dir` is incorrectly set to `res/templates` and do the right
-thing, but will warn about this.
-
 Synapse 0.33.7rc2 (2018-10-17)
 ==============================
 
diff --git a/UPGRADE.rst b/UPGRADE.rst
index 201d29812..55c77eedd 100644
--- a/UPGRADE.rst
+++ b/UPGRADE.rst
@@ -61,10 +61,6 @@ If you have email notifications enabled, you should ensure that
 have installed customised templates, or leave it unset to use the default
 templates.
 
-The configuration parser will try to detect the situation where
-``email.template_dir`` is incorrectly set to ``res/templates`` and do the right
-thing, but will warn about this.
-
 Upgrading to v0.27.3
 ====================