If you manage to get a working version or upgrade your device: Open WhatsApp and go to the (or Updates) tab.
Since the Google Play Store will likely show "App not compatible," you must sideload the application using an APK (Android Package Kit). Downloading APKs from random websites is the #1 way to get malware on a legacy device. whatsapp for android 4.4.2
Modern Android apps rely heavily on Google Play Services for functionality ranging from push notifications to in-app purchases and security verification. Android 4.4.2 utilizes an ancient version of Play Services that does not support the modern APIs developers need to make apps run efficiently. Without these If you manage to get a working version
For those holding onto legacy devices like the Samsung Galaxy S3 or early Moto G models, the hardware itself remains a marvel of durability. However, for secure communication, the software has reached a dead end. To continue using WhatsApp safely, users must transition to a device running Android 5.0 or higher Modern Android apps rely heavily on Google Play