diff --git a/distribution/mexa64/mym.mexa64 b/distribution/mexa64/mym.mexa64
index f7aed82..c878904 100755
Binary files a/distribution/mexa64/mym.mexa64 and b/distribution/mexa64/mym.mexa64 differ
diff --git a/distribution/mexmaci64/mym.mexmaci64 b/distribution/mexmaci64/mym.mexmaci64
index 9f55248..aded53c 100755
Binary files a/distribution/mexmaci64/mym.mexmaci64 and b/distribution/mexmaci64/mym.mexmaci64 differ
diff --git a/distribution/mexw64/mym.mexw64 b/distribution/mexw64/mym.mexw64
index 1f60c37..f27ce6b 100644
Binary files a/distribution/mexw64/mym.mexw64 and b/distribution/mexw64/mym.mexw64 differ
diff --git a/src/mym.cpp b/src/mym.cpp
index 1354ac8..3b15914 100644
--- a/src/mym.cpp
+++ b/src/mym.cpp
@@ -1727,6 +1727,9 @@ static void getSerialFct(const char* rpt, const mxArray* rparg, pfserial& rpf, b
 
 // entry point
 mxArray* deserialize(const char* rpSerial, const size_t rlength) {
+    if (!strcasecmp(rpSerial, "dj0"))
+        mexErrMsgIdAndTxt("DataJoint:CrossPlatform:Compatibility",
+                "Blob data ingested utilizing DataJoint-Python version >=0.12 not yet supported.");
     mxArray* p_res = NULL;
     bool could_not_deserialize = true;
     bool used_compression = false;