The original WhatsApp version may not be compatible with older Android versions like 6.0.1. This is where the repackaged version comes in. By downloading WhatsApp for Android 6.0.1 repack, you can enjoy the app's features on your device, even if it's not officially supported.
Since Android 6.0.1 is still officially supported, you can—and should—download the authentic app directly from the Google Play Store or the official WhatsApp Website How to Download and Install WhatsApp download whatsapp for android 601 repack
: Modified versions may route your messages through third-party servers, compromising end-to-end encryption. The original WhatsApp version may not be compatible
If you have decided to use a repack, follow these steps to ensure a smooth installation: Since Android 6
Please be aware that I'm providing general information, and you should use your discretion when downloading APK files from third-party sources.
The repackaged version of WhatsApp for Android 6.0.1 offers several features, including:
If you installed an old version that is now outdated, WhatsApp will stop it from working. You update to a newer, yet compatible, version from Device Performance: