diff --git a/lib/std/target.zig b/lib/std/target.zig
index 0a87d442d8..deb7c85984 100644
--- a/lib/std/target.zig
+++ b/lib/std/target.zig
@@ -96,8 +96,12 @@ pub const Target = struct {
             win10_rs4 = 0x0A000005,
             win10_rs5 = 0x0A000006,
             win10_19h1 = 0x0A000007,
+            win10_20h1 = 0x0A000008,
             _,
 
+            /// Latest Windows version that the Zig Standard Library is aware of
+            pub const latest = WindowsVersion.win10_20h1;
+            
             pub const Range = struct {
                 min: WindowsVersion,
                 max: WindowsVersion,
@@ -124,16 +128,17 @@ pub const Target = struct {
                 out_stream: anytype,
             ) !void {
                 if (fmt.len > 0 and fmt[0] == 's') {
-                    if (@enumToInt(self) >= @enumToInt(WindowsVersion.nt4) and @enumToInt(self) <= @enumToInt(WindowsVersion.win10_19h1)) {
+                    if (@enumToInt(self) >= @enumToInt(WindowsVersion.nt4) and @enumToInt(self) <= @enumToInt(WindowsVersion.latest)) {
                         try std.fmt.format(out_stream, ".{}", .{@tagName(self)});
                     } else {
-                        try std.fmt.format(out_stream, "@intToEnum(Target.Os.WindowsVersion, {})", .{@enumToInt(self)});
+                        // TODO this code path breaks zig triples, but it is used in `builtin`
+                        try std.fmt.format(out_stream, "@intToEnum(Target.Os.WindowsVersion, 0x{X:0>8})", .{@enumToInt(self)});
                     }
                 } else {
-                    if (@enumToInt(self) >= @enumToInt(WindowsVersion.nt4) and @enumToInt(self) <= @enumToInt(WindowsVersion.win10_19h1)) {
+                    if (@enumToInt(self) >= @enumToInt(WindowsVersion.nt4) and @enumToInt(self) <= @enumToInt(WindowsVersion.latest)) {
                         try std.fmt.format(out_stream, "WindowsVersion.{}", .{@tagName(self)});
                     } else {
-                        try std.fmt.format(out_stream, "WindowsVersion({})", .{@enumToInt(self)});
+                        try std.fmt.format(out_stream, "WindowsVersion(0x{X:0>8})", .{@enumToInt(self)});
                     }
                 }
             }
@@ -278,7 +283,7 @@ pub const Target = struct {
                     .windows => return .{
                         .windows = .{
                             .min = .win8_1,
-                            .max = .win10_19h1,
+                            .max = WindowsVersion.latest,
                         },
                     },
                 }
diff --git a/lib/std/zig/system.zig b/lib/std/zig/system.zig
index 175b0e4555..d24e8a57e9 100644
--- a/lib/std/zig/system.zig
+++ b/lib/std/zig/system.zig
@@ -249,7 +249,7 @@ pub const NativeTargetInfo = struct {
                         // values
                         const known_build_numbers = [_]u32{
                             10240, 10586, 14393, 15063, 16299, 17134, 17763,
-                            18362, 18363,
+                            18362, 19041,
                         };
                         var last_idx: usize = 0;
                         for (known_build_numbers) |build, i| {