diff -ruN /usr/ports/devel/microsoft-gsl/Makefile ./Makefile
--- /usr/ports/devel/microsoft-gsl/Makefile	2020-03-02 05:08:48.000000000 -0500
+++ ./Makefile	2020-05-24 18:26:05.344414000 -0400
@@ -2,7 +2,7 @@
 
 PORTNAME=	microsoft-gsl
 DISTVERSIONPREFIX=	v
-DISTVERSION=	2.1.0
+DISTVERSION=	3.0.1
 CATEGORIES=	devel
 
 MAINTAINER=	henry.hu.sh@gmail.com
diff -ruN /usr/ports/devel/microsoft-gsl/distinfo ./distinfo
--- /usr/ports/devel/microsoft-gsl/distinfo	2020-03-02 05:08:48.000000000 -0500
+++ ./distinfo	2020-05-24 18:26:07.429487000 -0400
@@ -1,3 +1,3 @@
-TIMESTAMP = 1583121165
-SHA256 (microsoft-GSL-v2.1.0_GH0.tar.gz) = ef73814657b073e1be86c8f7353718771bf4149b482b6cb54f99e79b23ff899d
-SIZE (microsoft-GSL-v2.1.0_GH0.tar.gz) = 67289
+TIMESTAMP = 1590359167
+SHA256 (microsoft-GSL-v3.0.1_GH0.tar.gz) = 7ceba191e046e5347357c6b605f53e6bed069c974aeda851254cb6962a233572
+SIZE (microsoft-GSL-v3.0.1_GH0.tar.gz) = 77408
diff -ruN /usr/ports/devel/microsoft-gsl/pkg-plist ./pkg-plist
--- /usr/ports/devel/microsoft-gsl/pkg-plist	2020-03-02 05:08:48.000000000 -0500
+++ ./pkg-plist	2020-05-24 18:26:57.096107000 -0400
@@ -6,4 +6,6 @@
 include/gsl/multi_span
 include/gsl/pointers
 include/gsl/span
+include/gsl/span_ext
 include/gsl/string_span
+share/cmake/Microsoft.GSL/Microsoft.GSLConfig.cmake