Update releases/0.16.0.rst

docs/releases/0.16.0.rst

@@ -2,7 +2,7 @@
 RapidSMS 0.16.0 release notes (under development)
 =================================================
 
-Welcome to RapidSMS 0.16.0! These release notes cover the new features in 0.14.0
+Welcome to RapidSMS 0.16.0! These release notes cover the new features in 0.16.0
 as well as some :ref:`backwards-incompatible-changes-0.16.0` you'll want to be
 aware of when upgrading from RapidSMS 0.15.0.
 
@@ -13,7 +13,18 @@ What's New
 
  .. _backwards-incompatible-changes-0.16.0:
 
-Backwards-incompatible changes in RapidSMS 0.6.0
+Backwards-incompatible changes in RapidSMS 0.16.0
 =================================================
 
-* ...
+* Style files removed from base: icons.css, modules.css, splits.css, and
+  tables.css. These are no longer used in the new bootstrap-based pages, so
+  they've been removed from the RapidSMS base style files and are no longer
+  loaded from the base template.
+
+  The old ``locations`` contrib app does still use them, so they've been moved
+  into that app and that app's base template changed to load them from there.
+
+  If you have an app that's still using any of these styles, and aren't ready
+  to convert your app to the new, bootstrap-based look, it's probably simplest
+  for you to copy them from ``locations`` into your app and load them from
+  your app's base template.