diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 605fce2043..9537c11ae2 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -77,6 +77,9 @@ Changelog
  * Fix: Pinned Django REST Framework to <3.7 to restore Django 1.8 compatibility (Matt Westcott)
  * Fix: Fixed crash in XML sitemap generator when all pages on the site are private (Stein Strindhaug)
  * Fix: Fixed error in Postgres search backend when searching specific fields of a specific() Page queryset (Bertrand Bordage, Matt Westcott)
+ * Fix: Fixed error on Elasticsearch backend when passing a queryset as an `__in` filter (Karl Hobley, Matt Westcott)
+ * Fix: `__isnull` filters no longer fail on Elasticsearch 5 (Karl Hobley)
+ * Fix: Prevented intermittent failures on Postgres search backend when a field is defined as both a `SearchField` and a `FilterField` (Matt Westcott)
 
 
 1.12.2 (18.09.2017)
diff --git a/docs/releases/1.12.3.rst b/docs/releases/1.12.3.rst
index 409a395a97..3b1d77dd66 100644
--- a/docs/releases/1.12.3.rst
+++ b/docs/releases/1.12.3.rst
@@ -17,3 +17,6 @@ Bug fixes
  * Pinned Django REST Framework to <3.7 to restore Django 1.8 compatibility (Matt Westcott)
  * Fixed crash in XML sitemap generator when all pages on the site are private (Stein Strindhaug)
  * Fixed error in Postgres search backend when searching specific fields of a ``specific()`` Page queryset (Bertrand Bordage, Matt Westcott)
+ * Fixed error on Elasticsearch backend when passing a queryset as an ``__in`` filter (Karl Hobley, Matt Westcott)
+ * ``__isnull`` filters no longer fail on Elasticsearch 5 (Karl Hobley)
+ * Prevented intermittent failures on Postgres search backend when a field is defined as both a ``SearchField`` and a ``FilterField`` (Matt Westcott)