diff --git a/ChangeLog.rst b/ChangeLog.rst
index 47328ffb..863c6b2c 100644
--- a/ChangeLog.rst
+++ b/ChangeLog.rst
@@ -1,3 +1,11 @@
+1.1.0
+=====
+
+Release Date: 2024-09-10
+
+* use ``PyLong_*`` instead of ``PyInt_*`` for compatibility with
+  future Cython. (#620)
+
 1.1.0rc2
 ========
 
diff --git a/msgpack/__init__.py b/msgpack/__init__.py
index a72e974c..b6151054 100644
--- a/msgpack/__init__.py
+++ b/msgpack/__init__.py
@@ -4,8 +4,8 @@
 from .exceptions import *  # noqa: F403
 from .ext import ExtType, Timestamp
 
-version = (1, 1, 0, "rc2")
-__version__ = "1.1.0rc2"
+version = (1, 1, 0)
+__version__ = "1.1.0"
 
 
 if os.environ.get("MSGPACK_PUREPYTHON"):