diff --git a/CHANGES.rst b/CHANGES.rst
index 641aa8803f7..d071f3214bc 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,7 +2,7 @@
 Changelog (Pillow)
 ==================
 
-10.4.0 (unreleased)
+10.4.0 (2024-07-01)
 -------------------
 
 - Raise FileNotFoundError if show_file() path does not exist #8178
diff --git a/src/PIL/_version.py b/src/PIL/_version.py
index 12d7412eaa1..cebfd868cfd 100644
--- a/src/PIL/_version.py
+++ b/src/PIL/_version.py
@@ -1,4 +1,4 @@
 # Master version for Pillow
 from __future__ import annotations
 
-__version__ = "10.4.0.dev0"
+__version__ = "10.4.0"