--- src/libANGLE/renderer/driver_utils_mac.mm.orig	2025-09-30 05:58:34.000000000 +0800
+++ src/libANGLE/renderer/driver_utils_mac.mm	2025-11-04 06:11:05.000000000 +0800
@@ -18,10 +18,34 @@
 {
     OSVersion result;
 
+#if defined(__MAC_10_10) && __MAC_OS_X_VERSION_MIN_REQUIRED >= __MAC_10_10
     NSOperatingSystemVersion version = [[NSProcessInfo processInfo] operatingSystemVersion];
     result.majorVersion              = static_cast<int>(version.majorVersion);
     result.minorVersion              = static_cast<int>(version.minorVersion);
     result.patchVersion              = static_cast<int>(version.patchVersion);
+#else
+    NSString *versionString = [[NSDictionary dictionaryWithContentsOfFile:
+        @"/System/Library/CoreServices/SystemVersion.plist"] objectForKey:@"ProductVersion"];
+
+    if (versionString)
+    {
+        NSArray *versionComponents = [versionString componentsSeparatedByString:@"."];
+       
+        result.majorVersion = (versionComponents.count > 0) ?
+            [[versionComponents objectAtIndex:0] intValue] : 10;
+        result.minorVersion = (versionComponents.count > 1) ?
+            [[versionComponents objectAtIndex:1] intValue] : 6;
+        result.patchVersion = (versionComponents.count > 2) ?
+            [[versionComponents objectAtIndex:2] intValue] : 0;
+    }
+    else
+    {
+        // Finally, just use the minimum supported version:
+        result.majorVersion = 10;
+        result.minorVersion = 6;
+        result.patchVersion = 0;
+    }
+#endif
 
     return result;
 }