diff --git a/.github/workflows/build_macos_wheel.yml b/.github/workflows/build_macos_wheel.yml
index c3ec6cb4..8a3dd337 100644
--- a/.github/workflows/build_macos_wheel.yml
+++ b/.github/workflows/build_macos_wheel.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: macos-13
     strategy:
       matrix:
-        python_version: [ '3.6', '3.7', '3.8', '3.9', '3.10', '3.11', '3.12', 'pypy3.7', 'pypy3.8', 'pypy3.9' ]
+        python_version: [ '3.6', '3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13', 'pypy3.7', 'pypy3.8', 'pypy3.9', 'pypy3.10']
     outputs:
       perform_pypi_upload: ${{ steps.perform_pypi_upload_check.outputs.perform_pypi_upload }}
     steps:
diff --git a/.github/workflows/build_windows_wheel.yml b/.github/workflows/build_windows_wheel.yml
index ac887135..54eb76fe 100644
--- a/.github/workflows/build_windows_wheel.yml
+++ b/.github/workflows/build_windows_wheel.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: windows-2019
     strategy:
       matrix:
-        python_version: [ '3.6', '3.7', '3.8', '3.9', '3.10', '3.11', '3.12', 'pypy3.7', 'pypy3.8', 'pypy3.9']
+        python_version: [ '3.6', '3.7', '3.8', '3.9', '3.10', '3.11', '3.12', 'pypy3.7', 'pypy3.8', 'pypy3.9', 'pypy3.10']
     outputs:
       perform_pypi_upload: ${{ steps.perform_pypi_upload_check.outputs.perform_pypi_upload }}
     steps:
diff --git a/Makefile b/Makefile
index 0d18029b..f37fd81c 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,7 @@
 ############################################################
 
 PKGNAME=mcx
-VERSION=2.0.0
+VERSION=2.6.0
 SOURCE=src
 GUI=mcxstudio
 COPY=cp
diff --git a/pmcx/README.md b/pmcx/README.md
index 6fa0c30f..bcb6a92b 100644
--- a/pmcx/README.md
+++ b/pmcx/README.md
@@ -4,7 +4,7 @@
 
 - Copyright: (C) Matin Raayai Ardakani (2022-2023) <raayaiardakani.m at northeastern.edu>, Qianqian Fang (2019-2025) <q.fang at neu.edu>, Fan-Yu Yen (2023-2024) <yen.f at northeastern.edu>
 - License: GNU Public License V3 or later
-- Version: 0.3.6
+- Version: 0.4.0
 - URL: https://pypi.org/project/pmcx/
 - Github: https://github.com/fangq/mcx
 
diff --git a/pmcx/pmcx/__init__.py b/pmcx/pmcx/__init__.py
index 2c64bb49..540429e9 100644
--- a/pmcx/pmcx/__init__.py
+++ b/pmcx/pmcx/__init__.py
@@ -49,7 +49,7 @@
 # from .files import loadmc2, loadmch, load, save
 from .bench import bench
 
-__version__ = "0.3.6"
+__version__ = "0.4.0"
 
 __all__ = (
     "gpuinfo",
diff --git a/pmcx/setup.py b/pmcx/setup.py
index 2fd5c22b..166c7624 100644
--- a/pmcx/setup.py
+++ b/pmcx/setup.py
@@ -123,7 +123,7 @@ def build_extension(self, ext):
 setup(
     name="pmcx",
     packages=["pmcx"],
-    version="0.3.6",
+    version="0.4.0",
     requires=["numpy"],
     license="GPLv3+",
     author="Matin Raayai Ardakani, Qianqian Fang, Fan-Yu Yen",
@@ -164,5 +164,6 @@ def build_extension(self, ext):
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
     ],
 )