diff --git a/HISTORY b/HISTORY
index 6bb558e1..a0d25227 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,4 +1,5 @@
-5.3.3   2022-??-??
+5.3.3   2022-10-17
+        Support for PostgreSQL added
         repmgrd: ensure event notification script is called for event
           "repmgrd_upstream_disconnect"; GitHub #760 (Ian)
 
@@ -73,7 +74,7 @@
           "standby clone" (Ian)
         repmgr: add --upstream option to "node check"
         repmgr: report error code on follow/rejoin failure due to non-available
-0          replication slot (Ian)
+          replication slot (Ian)
         repmgr: ensure "node rejoin" checks for available replication slots (Ian)
         repmgr: improve "standby switchover" completion checks (Ian)
         repmgr: add replication configuration file ownership check to
diff --git a/README.md b/README.md
index 6d5cf3f0..43088742 100644
--- a/README.md
+++ b/README.md
@@ -70,6 +70,7 @@ news are always welcome.
 
 Thanks from the repmgr core team.
 
+* Ian Barwick
 * Jaime Casanova
 * Abhijit Menon-Sen
 * Simon Riggs
diff --git a/doc/appendix-release-notes.xml b/doc/appendix-release-notes.xml
index 89faf532..380d9a22 100644
--- a/doc/appendix-release-notes.xml
+++ b/doc/appendix-release-notes.xml
@@ -16,8 +16,38 @@
   </para>
 
   <!-- remember to update the release date in ../repmgr_version.h.in -->
+  <sect1 id="release-5.3.3">
+    <title id="release-current">Release 5.3.3</title>
+    <para><emphasis>Mon 17 October, 2022</emphasis></para>
+    <para>
+      &repmgr; 5.3.3 is a minor release providing support for
+      <ulink url="https://www.postgresql.org/docs/15/release-15.html">PostgreSQL 15</ulink>
+      and a &repmgrd; bug fix.
+    </para>
+    <para>
+      If upgrading from an earlier &repmgr; version, any running &repmgrd; instances should be restarted.
+    </para>
+    <para>
+      If upgrading from &repmgr; 5.2.1 or earlier, a PostgreSQL restart <emphasis>is</emphasis> required.
+    </para>
+
+    <sect2>
+      <title>Bug fixes</title>
+      <para>
+        <itemizedlist>
+          <listitem>
+            <para>
+              &repmgrd;: ensure <link linkend="event-notifications">event notification</link> script is called for event
+              <literal>repmgrd_upstream_disconnect</literal>.  GitHub #760.
+            </para>
+          </listitem>
+        </itemizedlist>
+      </para>
+    </sect2>
+  </sect1>
+
   <sect1 id="release-5.3.2">
-    <title id="release-current">Release 5.3.2</title>
+    <title>Release 5.3.2</title>
     <para><emphasis>Wed 25 May, 2022</emphasis></para>
     <para>
       &repmgr; 5.3.2 is a minor release.