diff --git a/scripts/ci/find_extension_upgraded.py b/scripts/ci/find_extension_upgraded.py
new file mode 100644
index 00000000000..3fc8112b074
--- /dev/null
+++ b/scripts/ci/find_extension_upgraded.py
@@ -0,0 +1,141 @@
+# --------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# --------------------------------------------------------------------------------------------
+import os
+import sys
+import json
+from subprocess import check_output
+from pkg_resources import parse_version
+
+def separator_line():
+    print('-' * 100)
+
+class AzdevExtensionHelper:
+    def __init__(self, extension_name):
+        self.name = extension_name
+
+    def _get_metadata_flags(self, setup_py_dir):
+        for root, _, files in os.walk(setup_py_dir):
+            if 'azext_metadata.json' in files:
+                metadata_path = os.path.join(root, 'azext_metadata.json')
+                with open(metadata_path, 'r') as f:
+                    metadata = json.load(f)
+                    is_experimental = metadata.get('azext.isExperimental', False)
+                    is_preview = metadata.get('azext.isPreview', False)
+                return is_experimental, is_preview
+        return False, False
+
+    def _adjust_version_for_preview(self, version, setup_py_dir):
+        is_experimental, is_preview = self._get_metadata_flags(setup_py_dir)
+        if is_experimental or is_preview:
+            version_parts = version.split('.')
+            if all(part.isdigit() for part in version_parts):
+                version = f"{version}b1"
+        return version
+
+    def is_version_upgrade(self):
+        with open('src/index.json') as fd:
+            current_extensions = json.loads(fd.read()).get("extensions")
+
+        setup_py = f'src/{self.name}/setup.py'
+        if not os.path.isfile(setup_py):
+            print('no setup.py')
+            return False
+
+        setup_py_dir = os.path.dirname(setup_py)
+        cmd = f'{sys.executable} setup.py --name'
+        self.name = check_output(cmd, shell=True, cwd=setup_py_dir).decode('utf-8').strip()
+        self.name = self.name.replace('_', '-')
+
+        metadata = current_extensions.get(self.name, None)
+        if metadata is None:    # for new added extension
+            return True
+
+        current_max_entry = max(metadata, key=lambda e: parse_version(e['metadata']['version']))
+        current_max_version = current_max_entry['metadata']['version']
+        current_max_version = self._adjust_version_for_preview(current_max_version, setup_py_dir)
+        print(f'current max version is {current_max_version}')
+
+        cmd = f'{sys.executable} setup.py --version'
+        modified_version = check_output(cmd, shell=True, cwd=setup_py_dir).decode('utf-8').strip()
+        print(f'modified version is {modified_version}')
+
+        if parse_version(current_max_version) > parse_version(modified_version):
+            err = f'version downgrade is not allowed in extension {setup_py}. [{current_max_version} -> {modified_version}]'
+            raise Exception(err)
+
+        if parse_version(current_max_version) == parse_version(modified_version):
+            return False
+
+        return True
+
+def find_modified_files_against_master_branch():
+    """
+    Deleted files don't count in diff
+    """
+    cmd = 'git --no-pager diff --diff-filter=ACMRT --name-only HEAD~1 -- src/'
+    files = check_output(cmd.split()).decode('utf-8').split('\n')
+    separator_line()
+    print('modified files:')
+    for f in files:
+        print(f)
+    separator_line()
+    return [f for f in files if len(f) > 0]
+
+def contain_extension_code(files):
+    with open('src/index.json', 'r') as fd:
+        current_extensions = json.loads(fd.read()).get("extensions")
+    current_extension_homes = set(f'src/{name}' for name in current_extensions)
+
+    for file in files:
+        if any([file.startswith(prefix) for prefix in current_extension_homes]):
+            return True
+
+    # for new added extensions or modules that src folder name does not match its wheel package name
+    for file in files:
+        if 'src/' in file and os.path.isfile(file) and os.path.isdir(os.path.dirname(file)):
+            new_extension_home = os.path.dirname(file)
+            new_extension_home = os.path.join(*new_extension_home.split('/')[:2])
+            if os.path.isfile(os.path.join(new_extension_home, 'setup.py')):
+                return True
+    return False
+
+def main():
+    modified_files = find_modified_files_against_master_branch()
+    if 'src/index.json' in modified_files:
+        modified_files.remove('src/index.json')
+
+    # check setup.py
+    for f in modified_files:
+        if f.endswith('setup.py'):
+            break
+    else:
+        separator_line()
+        print('no setup.py is modified, no need to publish')
+        separator_line()
+        return
+
+    # check source code
+    if not contain_extension_code(modified_files):
+        separator_line()
+        print('no extension source code is modified, no need to publish')
+        separator_line()
+        return
+
+    extension_names = set()
+    for f in modified_files:
+        src, name, *_ = f.split('/')
+        if os.path.isdir(os.path.join(src, name)):
+            extension_names.add(name)
+
+    for name in extension_names:
+        azdev_extension = AzdevExtensionHelper(name)
+        if azdev_extension.is_version_upgrade() is False:
+            print(f'extension [{name}] is not upgrade, no need to help publish')
+            continue
+        with open('./upgrade_extensions.txt', 'a') as fd:
+            fd.write(name + '\n')
+
+if __name__ == '__main__':
+    main()