[release-branch.go1.10] godoc/dl: update Mac & Windows minimum versions

Updates golang/go#27213

Change-Id: I25813e9aafcdb39d4f93e27b98d8672c770234a6
Reviewed-on: https://go-review.googlesource.com/131402
Reviewed-by: Andrew Bonventre <andybons@golang.org>
(cherry picked from commit 1057b4d08146b510c47b87a2221e9720fe1a9fb9)
Reviewed-on: https://go-review.googlesource.com/131403
diff --git a/godoc/dl/dl.go b/godoc/dl/dl.go
index 56c0f62..3f83b1f 100644
--- a/godoc/dl/dl.go
+++ b/godoc/dl/dl.go
@@ -161,12 +161,12 @@
 var featuredFiles = []Feature{
 	{
 		Platform:     "Microsoft Windows",
-		Requirements: "Windows XP SP3 or later, Intel 64-bit processor",
+		Requirements: "Windows 7 or later, Intel 64-bit processor",
 		fileRE:       regexp.MustCompile(`\.windows-amd64\.msi$`),
 	},
 	{
 		Platform:     "Apple macOS",
-		Requirements: "macOS 10.8 or later, Intel 64-bit processor",
+		Requirements: "macOS 10.10 or later, Intel 64-bit processor",
 		fileRE:       regexp.MustCompile(`\.darwin-amd64(-osx10\.8)?\.pkg$`),
 	},
 	{