diff --git a/include/nanobind/nanobind.h b/include/nanobind/nanobind.h
index a5919c8c..34c5e76b 100644
--- a/include/nanobind/nanobind.h
+++ b/include/nanobind/nanobind.h
@@ -22,9 +22,9 @@
 #endif
 
 #define NB_VERSION_MAJOR 2
-#define NB_VERSION_MINOR 3
+#define NB_VERSION_MINOR 4
 #define NB_VERSION_PATCH 0
-#define NB_VERSION_DEV   1 // A value > 0 indicates a development release
+#define NB_VERSION_DEV   0 // A value > 0 indicates a development release
 
 // Core C++ headers that nanobind depends on
 #include <cstddef>
diff --git a/pyproject.toml b/pyproject.toml
index fa34f6f5..a30fde49 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "scikit_build_core.build"
 
 [project]
 name = "nanobind"
-version = "2.3.0dev1"
+version = "2.4.0"
 description = "nanobind: tiny and efficient C++/Python bindings"
 readme.content-type = "text/markdown"
 readme.text = """
diff --git a/src/__init__.py b/src/__init__.py
index 7fd5ba61..3f8ad890 100644
--- a/src/__init__.py
+++ b/src/__init__.py
@@ -12,7 +12,7 @@ def cmake_dir() -> str:
     "Return the path to the nanobind CMake module directory."
     return os.path.join(os.path.abspath(os.path.dirname(__file__)), "cmake")
 
-__version__ = "2.3.0dev1"
+__version__ = "2.4.0"
 
 __all__ = (
     "__version__",