diff --git a/changelog.d/287.bugfix.rst b/changelog.d/287.bugfix.rst
index e42675a5..43191d12 100644
--- a/changelog.d/287.bugfix.rst
+++ b/changelog.d/287.bugfix.rst
@@ -1,2 +1,3 @@
-treq request functions and methods like :func:`treq.get()` and :meth:`HTTPClient.post()` now issue a ``DeprecationWarning``.
-This will change to a ``TypeError`` in the next treq release.
+treq request functions and methods like :func:`treq.get()` and :meth:`HTTPClient.post()` now issue a ``DeprecationWarning`` when passed unknown keyword arguments, rather than ignoring them.
+Mixing the *json* argument with *files* or *data* is also deprecated.
+These warnings will change to a ``TypeError`` in the next treq release.