diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..e384528
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1 @@
+DisableFormat: true
diff --git a/CHANGELOG.md b/CHANGELOG.md
index da32253..fddb6f6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,14 +5,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## Unreleased
+## [1.4.0] - 2025-02-09
 
 - Significantly reduced awaitable object size by dynamically allocating it.
 - Reduced memory footprint by removing preallocated awaitable objects.
 - Objects returned by a PyAwaitable object's `__await__` are now garbage collected (*i.e.*, they don't leak with rare circular references).
 - Removed limit on number of stored callbacks or values.
 - Switched some user-error messages to `RuntimeError` instead of `SystemError`.
-- Added `PyAwaitable_DeferAwait` for executing code when the awaitable object is called by the event loop.
+- Added `PyAwaitable_DeferAwait` for executing code without a coroutine when the awaitable object is called by the event loop.
 
 ## [1.3.0] - 2024-10-26
 
diff --git a/setup.py b/setup.py
index 5b6b99b..2a66a9a 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@
     setup(
         name="pyawaitable",
         license="MIT",
-        version="1.4.0-dev",
+        version="1.4.0",
         ext_modules=[
             Extension(
                 "_pyawaitable",
diff --git a/src/pyawaitable/__init__.py b/src/pyawaitable/__init__.py
index f1541f8..c0416e6 100644
--- a/src/pyawaitable/__init__.py
+++ b/src/pyawaitable/__init__.py
@@ -12,7 +12,7 @@
 from . import abi
 
 __all__ = "PyAwaitable", "include", "abi"
-__version__ = "1.3.0"
+__version__ = "1.4.0"
 __author__ = "Peter Bierma"
 
 PyAwaitable: Type = _PyAwaitableType
diff --git a/src/pyawaitable/pyawaitable.h b/src/pyawaitable/pyawaitable.h
index 5c62088..e3c4134 100644
--- a/src/pyawaitable/pyawaitable.h
+++ b/src/pyawaitable/pyawaitable.h
@@ -55,7 +55,8 @@ typedef struct _pyawaitable_abi
     );
     int (*defer_await)(
         PyObject *aw,
-        defer_callback cb);
+        defer_callback cb
+    );
 } PyAwaitableABI;
 
 #ifdef PYAWAITABLE_THIS_FILE_INIT