diff --git a/NEWS b/NEWS
index ed073067656..d582ab9318a 100644
--- a/NEWS
+++ b/NEWS
@@ -5,6 +5,10 @@ PHP                                                                        NEWS
 - Bz2:
   . Fix truncation of total output size causing erroneous errors. (ndossche)
 
+- GD:
+  . Fixed bug GH-21431 (phpinfo() to display libJPEG 10.0 support).
+    (David Carlier)
+
 - Opcache:
   . Fixed bug GH-20838 (JIT compiler produces wrong arithmetic results).
     (Dmitry, iliaal)
diff --git a/ext/gd/libgd/gd_jpeg.c b/ext/gd/libgd/gd_jpeg.c
index f0974c2a99d..c15a97c7b59 100644
--- a/ext/gd/libgd/gd_jpeg.c
+++ b/ext/gd/libgd/gd_jpeg.c
@@ -125,6 +125,10 @@ const char * gdJpegGetVersionString()
 			return "9 compatible";
 			break;
 
+		case 100:
+			return "10 compatible";
+			break;
+
 		default:
 			return "unknown";
 	}