diff --git a/examples/server/server_app_thread.py b/examples/server/server_app_thread.py
index dec508b..968c0f5 100644
--- a/examples/server/server_app_thread.py
+++ b/examples/server/server_app_thread.py
@@ -61,4 +61,4 @@ def launch_server():
 
 # stop server
 server_thread.join()
-print("Server  stoped")
+print("Server stoped")
diff --git a/pyproject.toml b/pyproject.toml
index fef44e2..f0d02d1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pyrfc"
-version = "3.2"
+version = "3.3"
 readme = "README.md"
 license = { file = "LICENSES/Apache-2.0.txt" }
 description = "Python bindings for SAP NetWeaver RFC SDK"
@@ -26,6 +26,7 @@ classifiers = [
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3 :: Only"
 ]
 dependencies = []
diff --git a/setup.py b/setup.py
index deedef0..606ad85 100644
--- a/setup.py
+++ b/setup.py
@@ -3,10 +3,10 @@
 # SPDX-License-Identifier: Apache-2.0
 
 import inspect
-import sys
 import os
-from setuptools import setup, Extension
+import sys
 
+from setuptools import Extension, setup
 
 PACKAGE_NAME = "pyrfc"
 MODULE_NAME = "_cyrfc"
@@ -17,8 +17,8 @@
 CMDCLASS = {}
 if build_cython:
     try:
-        from Cython.Distutils import build_ext
         from Cython.Build import cythonize
+        from Cython.Distutils import build_ext
     except ImportError:
         sys.exit("Cython not installed: https://cython.readthedocs.io/en/latest/src/quickstart/install.html")
     CMDCLASS = {"build_ext": build_ext}
@@ -189,7 +189,7 @@
 setup(
     name=PACKAGE_NAME,
     cmdclass=CMDCLASS,  # type: ignore
-    ext_modules=cythonize(PYRFC_EXT, annotate=True, compiler_directives={"language_level": "3"})  # type: ignore
+    ext_modules=cythonize(PYRFC_EXT, annotate=True, compiler_directives={"language_level": "3", "embedsignature": True})  # type: ignore
     if build_cython
     else [PYRFC_EXT],  # type: ignore
     test_suite="tests",
diff --git a/src/pyrfc/_cyrfc.pyx b/src/pyrfc/_cyrfc.pyx
index 545c2be..834d4fa 100755
--- a/src/pyrfc/_cyrfc.pyx
+++ b/src/pyrfc/_cyrfc.pyx
@@ -14,11 +14,10 @@ from decimal import Decimal
 from enum import Enum, auto
 from locale import localeconv
 from os.path import isfile, join
-from sys import exc_info, platform
+from sys import exc_info, platform, version_info
 from threading import Thread, Timer
 
 from pyrfc.csapnwrfc cimport *
-
 from pyrfc._exception import *
 from pyrfc._utils import enum_names, enum_values
 
@@ -1530,7 +1529,11 @@ def default_auth_check(func_name=False, request_context = None):
 
 def _server_log(origin, log_message):
     if server_context["server_log"]:
-        print (f"[{datetime.utcnow()} UTC] {origin} '{log_message}'")
+        if version_info > (3, 12):
+            from datetime import UTC
+            print (f"[{datetime.now(UTC).replace(tzinfo=None)} UTC] {origin} '{log_message}'")
+        else:
+            print (f"[{datetime.utcnow()} UTC] {origin} '{log_message}'")
 
 
 cdef RFC_RC metadataLookup(
diff --git a/tox.ini b/tox.ini
index c83bedb..7c7bada 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,8 +2,8 @@
 description = "PyRFC Build"
 minversion = 4.5
 envlist =
-     lint_format, docs, reuse, sdist, pack,
-     py38, py39, py310, py311
+     linter, docs, reuse, sdist, pack,
+     py38, py39, py310, py311, py312
 package = wheel
 skip_missing_interpreters = false
 isolated_build = true
@@ -26,7 +26,7 @@ commands =
     # unit test
     python -m pytest tests --testdox --html-report=./report {posargs}
 
-[testenv:lint_format]
+[testenv:linter]
 description = Check linting
 platform = darwin
 basepython = python3.11