diff --git a/.gitignore b/.gitignore
index 97aa3729..4451cf4c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,6 @@ build/
 
 # Smithy
 .smithy.lsp.log
+
+# changed file
+.changed
diff --git a/.scripts/update_versions b/.scripts/update_versions
index 491405de..1cc1d4cf 100755
--- a/.scripts/update_versions
+++ b/.scripts/update_versions
@@ -38,6 +38,11 @@ def main(properties_file: Path, projects: Set[str]):
             )
             properties[project_key] = properties[project_key]
     write_properties(properties_file, properties)
+    
+    # Write the file containing the list of changed services, excluding the 'all' project
+    changed_file = properties_file.parent / '.changed'
+    projects.discard('all')
+    changed_file.write_text("\n".join(projects))
 
 
 def read_properties(properties_file: Path) -> dict: