diff --git a/doMerge.go b/doMerge.go
index 2005d70..5f0d7d9 100644
--- a/doMerge.go
+++ b/doMerge.go
@@ -25,6 +25,11 @@ func doMergeDevel() (*gitpb.Repos, error) {
 			err = fmt.Errorf("checkout devel failed")
 			break
 		}
+		// hash differences when merging user into devel branch
+		out := repo.GetBranchDifferences(repo.GetDevelBranchName(), repo.GetUserBranchName())
+		for i, hash := range out {
+			log.Info("MERGE HASH FROM USER TO DEVEL", i, hash)
+		}
 		if _, err := repo.MergeToDevel(); err != nil {
 			log.Info("merge from user failed", repo.GetGoPath(), err)
 			err = fmt.Errorf("merge from user failed")