Google Services Framework 8.1 0 Apk |best| < 2027 >

Do not target or depend on GSF 8.1.0 for new apps. Use Firebase Cloud Messaging (via Play Services) instead. For security researchers, GSF 8.1.0 on unpatched Android 8.1 devices presents a moderate risk surface — especially around check-in data leakage and stale GCM registration tokens.