Increment `PYBIND11_VERSION_PATCH`
QA:
```
$ nox -s tests_packaging
nox > Running session tests_packaging
nox > Creating virtual environment (virtualenv) using python3 in .nox/tests_packaging
nox > python -m pip install -r tests/requirements.txt
nox > pytest tests/extra_python_package
=========================================================== test session starts ============================================================
platform darwin -- Python 3.10.2, pytest-7.4.4, pluggy-1.5.0
rootdir: /Users/rgrossekunst/forked/pybind11/tests/extra_python_package
configfile: pytest.ini
plugins: timeout-2.3.1
collected 4 items
tests/extra_python_package/test_files.py .... [100%]
============================================================ 4 passed in 22.82s ============================================================
nox > Session tests_packaging was successful.
```
diff --git a/include/pybind11/detail/common.h b/include/pybind11/detail/common.h
index 454e606..987f9d7 100644
--- a/include/pybind11/detail/common.h
+++ b/include/pybind11/detail/common.h
@@ -11,11 +11,11 @@
#define PYBIND11_VERSION_MAJOR 2
#define PYBIND11_VERSION_MINOR 12
-#define PYBIND11_VERSION_PATCH 0
+#define PYBIND11_VERSION_PATCH 1
// Similar to Python's convention: https://docs.python.org/3/c-api/apiabiversion.html
// Additional convention: 0xD = dev
-#define PYBIND11_VERSION_HEX 0x020C0000
+#define PYBIND11_VERSION_HEX 0x020C0100
// Define some generic pybind11 helper macros for warning management.
//
diff --git a/pybind11/_version.py b/pybind11/_version.py
index ab5a7bf..464f01b 100644
--- a/pybind11/_version.py
+++ b/pybind11/_version.py
@@ -8,5 +8,5 @@
return s
-__version__ = "2.12.0"
+__version__ = "2.12.1"
version_info = tuple(_to_int(s) for s in __version__.split("."))
