diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index d3adeedc6d..c075a7b2a1 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -23,6 +23,7 @@ Changelog
  * Added `render_landing_page` method to `AbstractForm` to be easily overridden and pass `form_submission` to landing page context (Stein Strindhaug)
  * Added `heading` kwarg to `InlinePanel` to allow heading to be set independently of button label (Adrian Turjak)
  * The value type returned from a `StructBlock` can now be customised (LB (Ben Johnston))
+ * Added `bgcolor` image operation (Karl Hobley)
  * Fix: Do not remove stopwords when generating slugs from non-ASCII titles, to avoid issues with incorrect word boundaries (Sævar Öfjörð Magnússon)
  * Fix: The PostgreSQL search backend now preserves ordering of the `QuerySet` when searching with `order_by_relevance=False` (Bertrand Bordage)
  * Fix: Using `modeladmin_register` as a decorator no longer replaces the decorated class with `None` (Tim Heap)
@@ -45,6 +46,7 @@ Changelog
  * Fix: Prevented intermittent failures on Postgres search backend when a field is defined as both a `SearchField` and a `FilterField` (Matt Westcott)
  * Fix: Alt text of images in rich text is no longer truncated on double-quote characters (Matt Westcott)
  * Fix: Ampersands in embed URLs within rich text are no longer double-escaped (Matt Westcott)
+ * Fix: Using RGBA images no longer crashes with Pillow >= 4.2.0 (Karl Hobley)
 
 
 1.13.1 (17.11.2017)
diff --git a/docs/releases/2.0.rst b/docs/releases/2.0.rst
index 0c42f4b40b..efd96a4260 100644
--- a/docs/releases/2.0.rst
+++ b/docs/releases/2.0.rst
@@ -36,6 +36,7 @@ Other features
  * Added ``render_landing_page`` method to ``AbstractForm`` to be easily overridden and pass ``form_submission`` to landing page context (Stein Strindhaug)
  * Added ``heading`` kwarg to ``InlinePanel`` to allow heading to be set independently of button label (Adrian Turjak)
  * The value type returned from a ``StructBlock`` can now be customised. See :ref:`custom_value_class_for_structblock` (LB (Ben Johnston))
+ * Added `bgcolor` image operation (Karl Hobley)
 
 Bug fixes
 ~~~~~~~~~
@@ -63,6 +64,7 @@ Bug fixes
  * Prevented intermittent failures on Postgres search backend when a field is defined as both a ``SearchField`` and a ``FilterField`` (Matt Westcott)
  * Alt text of images in rich text is no longer truncated on double-quote characters (Matt Westcott)
  * Ampersands in embed URLs within rich text are no longer double-escaped (Matt Westcott)
+ * Using RGBA images no longer crashes with Pillow >= 4.2.0 (Karl Hobley)
 
 
 Upgrade considerations