diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 050eafdbe2..37094a4e4d 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -40,6 +40,9 @@ Changelog
  * Fix: Project template now has password validators enabled by default (Matt Westcott)
  * Fix: Alignment options correctly removed from `TableBlock` context menu (LB (Ben Johnston))
  * Fix: Fix support of `ATOMIC_REBUILD` for projects with Elasticsearch client >=1.7.0 (Mikalai Radchuk)
+ * 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)
 
 
 1.13.1 (17.11.2017)
diff --git a/docs/releases/2.0.rst b/docs/releases/2.0.rst
index ff2fd7e797..2ff04dbd21 100644
--- a/docs/releases/2.0.rst
+++ b/docs/releases/2.0.rst
@@ -58,6 +58,9 @@ Bug fixes
  * Project template now has password validators enabled by default (Matt Westcott)
  * Alignment options correctly removed from ``TableBlock`` context menu (LB (Ben Johnston))
  * Fix support of ``ATOMIC_REBUILD`` for projects with Elasticsearch client ``>=1.7.0`` (Mikalai Radchuk)
+ * 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)
 
 
 Upgrade considerations