diff --git a/odoo/upgrade_code/17.5-03-replace-chatter.py b/odoo/upgrade_code/17.5-03-replace-chatter.py
new file mode 100644
index 000000000..b225bc1f8
--- /dev/null
+++ b/odoo/upgrade_code/17.5-03-replace-chatter.py
@@ -0,0 +1,55 @@
+# -*- coding: utf-8 -*-
+
+import re
+from bs4 import BeautifulSoup as bs
+from pathlib import Path
+import logging
+
+# Set up logging
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+
+def upgrade(file_manager):
+    """Replace all '<div class="oe_chatter">' sections with '<chatter/>' in XML files."""
+    # Filter files to only XML files
+    files = [file for file in file_manager if file.path.suffix == ".xml"]
+    if not files:
+        logger.info("No XML files found to process")
+        return
+
+    # Regex pattern to match <div class="oe_chatter"> and its content
+    chatter_re = re.compile(
+        r"""
+        <div\ class="oe_chatter">  # Opening div with class="oe_chatter"
+        .*?                        # Any content (non-greedy)
+        </div>                     # Closing div
+    """,
+        re.VERBOSE | re.DOTALL,
+    )  # DOTALL allows . to match newlines
+
+    # Process each file
+    for fileno, file in enumerate(files, start=1):
+        content = file.content
+
+        # Check if the pattern exists in the file
+        if not chatter_re.search(content):
+            continue
+
+        # Use BeautifulSoup for precise replacement
+        soup = bs(content, "xml")
+        chatter_divs = soup.select("div.oe_chatter")
+
+        if not chatter_divs:
+            logger.debug(f"No <div class='oe_chatter'> found in {file.path}")
+            continue
+
+        # Replace each <div class="oe_chatter"> with <chatter/>
+        for div in chatter_divs:
+            new_tag = soup.new_tag("chatter")
+            div.replace_with(new_tag)
+
+        # Update file content
+        file.content = str(soup)
+        logger.info(f"Replaced chatter in {file.path}")
+        file_manager.print_progress(fileno, len(files))