diff --git a/CHANGES.rst b/CHANGES.rst
index 058c2c8..5c88286 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,7 +2,7 @@
  Changes
 =========
 
-4.3.0 (unreleased)
+4.3.0 (2018-10-19)
 ==================
 
 - Add support for Python 3.7.
diff --git a/setup.py b/setup.py
index 31ef072..c23f612 100644
--- a/setup.py
+++ b/setup.py
@@ -29,7 +29,7 @@ def read(*rnames):
 
 setup(
     name='zope.principalannotation',
-    version='4.2.1.dev0',
+    version='4.3.0',
     author='Zope Foundation and Contributors',
     author_email='zope-dev@zope.org',
     description='Annotations for Zope Principals',