diff -Nru protobuf-3.6.1.2/debian/changelog protobuf-3.6.1.3/debian/changelog
--- protobuf-3.6.1.2/debian/changelog	2018-12-08 16:13:58.000000000 +0000
+++ protobuf-3.6.1.3/debian/changelog	2018-12-09 12:45:11.000000000 +0000
@@ -1,3 +1,10 @@
+protobuf (3.6.1.3-1) unstable; urgency=medium
+
+  * New upstream release.
+  * Mark libprotobuf-java Multi-Arch foreign.
+
+ -- Laszlo Boszormenyi (GCS) <gcs@debian.org>  Sun, 09 Dec 2018 12:45:11 +0000
+
 protobuf (3.6.1.2-1) unstable; urgency=medium
 
   * New upstream release.
diff -Nru protobuf-3.6.1.2/debian/control protobuf-3.6.1.3/debian/control
--- protobuf-3.6.1.2/debian/control	2018-11-26 23:23:31.000000000 +0000
+++ protobuf-3.6.1.3/debian/control	2018-12-09 12:45:11.000000000 +0000
@@ -233,6 +233,7 @@
 
 Package: libprotobuf-java
 Architecture: all
+Multi-Arch: foreign
 Depends: ${misc:Depends}
 Section: java
 Description: Java bindings for protocol buffers
diff -Nru protobuf-3.6.1.2/js/binary/utils.js protobuf-3.6.1.3/js/binary/utils.js
--- protobuf-3.6.1.2/js/binary/utils.js	2018-12-04 23:52:48.000000000 +0000
+++ protobuf-3.6.1.3/js/binary/utils.js	2018-12-08 01:32:11.000000000 +0000
@@ -971,9 +971,10 @@
     return /** @type {!Uint8Array} */(new Uint8Array(data));
   }
 
-  if (data.constructor === Buffer) {
-    return /** @type {!Uint8Array} */(new Uint8Array(data));
-  }
+  if (typeof Buffer != 'undefined' && data.constructor === Buffer) {
+    return /** @type {!Uint8Array} */ (
+        new Uint8Array(/** @type {?} */ (data)));
+   }
 
   if (data.constructor === Array) {
     data = /** @type {!Array<number>} */(data);