diff --git a/CHANGES.md b/CHANGES.md
index 6a4d5f5c97..7d1b804e8b 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,14 @@
+Synapse 1.45.0 (2021-10-19)
+===========================
+
+No functional changes since Synapse 1.45.0rc2.
+
+Improved Documentation
+----------------------
+
+- Reword changelog to clarify concerns about a suspected performance regression in 1.44. ([\#11117](https://github.com/matrix-org/synapse/issues/11117))
+
+
 Synapse 1.45.0rc2 (2021-10-14)
 ==============================
 
diff --git a/changelog.d/11117.doc b/changelog.d/11117.doc
deleted file mode 100644
index b4809fd6ea..0000000000
--- a/changelog.d/11117.doc
+++ /dev/null
@@ -1 +0,0 @@
-Reword changelog to clarify concerns about a suspected performance regression in 1.44.
diff --git a/debian/changelog b/debian/changelog
index f930befbe7..5fefb2f2ac 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+matrix-synapse-py3 (1.45.0) stable; urgency=medium
+
+  * New synapse release 1.45.0.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 19 Oct 2021 11:18:53 +0100
+
 matrix-synapse-py3 (1.45.0~rc2) stable; urgency=medium
 
   * New synapse release 1.45.0~rc2.
diff --git a/synapse/__init__.py b/synapse/__init__.py
index ab90093e70..97452f34fe 100644
--- a/synapse/__init__.py
+++ b/synapse/__init__.py
@@ -47,7 +47,7 @@ try:
 except ImportError:
     pass
 
-__version__ = "1.45.0rc2"
+__version__ = "1.45.0"
 
 if bool(os.environ.get("SYNAPSE_TEST_PATCH_LOG_CONTEXTS", False)):
     # We import here so that we don't have to install a bunch of deps when