diff --git a/payload_consumer/payload_constants.cc b/payload_consumer/payload_constants.cc
index f25bd4c..4719be8 100644
--- a/payload_consumer/payload_constants.cc
+++ b/payload_consumer/payload_constants.cc
@@ -37,7 +37,7 @@
 const uint32_t kZucchiniMinorPayloadVersion = 8;
 
 const uint32_t kMinSupportedMinorPayloadVersion = kSourceMinorPayloadVersion;
-const uint32_t kMaxSupportedMinorPayloadVersion = kZucchiniMinorPayloadVersion;
+const uint32_t kMaxSupportedMinorPayloadVersion = kLZ4DIFFMinorPayloadVersion;
 
 const uint64_t kMaxPayloadHeaderSize = 24;
 
@@ -68,6 +68,10 @@
       return "BROTLI_BSDIFF";
     case InstallOperation::ZUCCHINI:
       return "ZUCCHINI";
+    case InstallOperation::LZ4DIFF_BSDIFF:
+      return "LZ4DIFF_BSDIFF";
+    case InstallOperation::LZ4DIFF_PUFFDIFF:
+      return "LZ4DIFF_PUFFIDFF";
     case InstallOperation::BSDIFF:
     case InstallOperation::MOVE:
       NOTREACHED();
diff --git a/payload_consumer/payload_constants.h b/payload_consumer/payload_constants.h
index 28edf4e..31e24f7 100644
--- a/payload_consumer/payload_constants.h
+++ b/payload_consumer/payload_constants.h
@@ -62,6 +62,9 @@
 // The minor version that allows ZUCCHINI operation.
 extern const uint32_t kZucchiniMinorPayloadVersion;
 
+// THe minor version that allows LZ4DIFF operation
+constexpr uint32_t kLZ4DIFFMinorPayloadVersion = 9;
+
 // The minimum and maximum supported minor version.
 extern const uint32_t kMinSupportedMinorPayloadVersion;
 extern const uint32_t kMaxSupportedMinorPayloadVersion;