diff --git a/source/includes/mongodb-compatibility-table-kotlin.rst b/source/includes/mongodb-compatibility-table-kotlin.rst
index 3b493f40..8987e815 100644
--- a/source/includes/mongodb-compatibility-table-kotlin.rst
+++ b/source/includes/mongodb-compatibility-table-kotlin.rst
@@ -13,6 +13,16 @@
      - MongoDB 4.0
      - MongoDB 3.6
 
+   * - 5.5
+     - ✓
+     - ✓
+     - ✓
+     - ✓
+     - ✓
+     - ✓
+     -
+     -
+
    * - 5.2 to 5.4
      - ✓
      - ✓
diff --git a/source/whats-new.txt b/source/whats-new.txt
index 7aaa605a..8127cee9 100644
--- a/source/whats-new.txt
+++ b/source/whats-new.txt
@@ -15,6 +15,7 @@ What's New
 
 Learn what's new in:
 
+* :ref:`Version 5.5 <kotlin-coroutine-version-5.5>`
 * :ref:`Version 5.4 <kotlin-coroutine-version-5.4>`
 * :ref:`Version 5.3 <kotlin-coroutine-version-5.3>`
 * :ref:`Version 5.2 <kotlin-coroutine-version-5.2>`
@@ -26,6 +27,17 @@ Learn what's new in:
 * :ref:`Version 4.11 <version-4.11>`
 * :ref:`Version 4.10 <version-4.10>`
 
+.. _kotlin-coroutine-version-5.5:
+
+What's New in 5.5
+-----------------
+
+.. important:: Removal of Support for {+mdb-server+} 4.0
+
+   {+driver-short+} v5.5 removes support for {+mdb-server+} 4.0. To
+   learn more about compatible versions of the server, see
+   :ref:`kotlin-compatibility-tables`.
+
 .. _kotlin-coroutine-version-5.4:
 
 What's New in 5.4