diff --git a/CHANGES.md b/CHANGES.md
index 78c5d3038..5e1da96bc 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,18 @@
+Synapse 1.64.0 (2022-08-02)
+===========================
+
+No significant changes since 1.64.0rc2.
+
+
+Deprecation Warning
+-------------------
+
+Synapse v1.66.0 will remove the ability to delegate the tasks of verifying email address ownership, and password reset confirmation, to an identity server.
+
+If you require your homeserver to verify e-mail addresses or to support password resets via e-mail, please configure your homeserver with SMTP access so that it can send e-mails on its own behalf.
+[Consult the configuration documentation for more information.](https://matrix-org.github.io/synapse/latest/usage/configuration/config_documentation.html#email)
+
+
 Synapse 1.64.0rc2 (2022-07-29)
 ==============================
 
diff --git a/debian/changelog b/debian/changelog
index 6a2dbdf32..9efcb4f13 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+matrix-synapse-py3 (1.64.0) stable; urgency=medium
+
+  * New Synapse release 1.64.0.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 02 Aug 2022 10:32:30 +0100
+
 matrix-synapse-py3 (1.64.0~rc2) stable; urgency=medium
 
   * New Synapse release 1.64.0rc2.
diff --git a/pyproject.toml b/pyproject.toml
index 4e8f7ae4f..af7def0c5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,7 +54,7 @@ skip_gitignore = true
 
 [tool.poetry]
 name = "matrix-synapse"
-version = "1.64.0rc2"
+version = "1.64.0"
 description = "Homeserver for the Matrix decentralised comms protocol"
 authors = ["Matrix.org Team and Contributors <packages@matrix.org>"]
 license = "Apache-2.0"