If you own a smartphone running Android 2.3 to Android 4.4 (KitKat), the latest WhatsApp versions either run terribly or refuse to install. WhatsApp 8.1.0 might be the last stable version that runs smoothly on such hardware.
A few important points:
: If you need an older APK for legitimate testing or compatibility reasons, sites like APKMirror (owned by the company behind Android Police) are generally safer than random download sites. whatsapp 8.1 0 apk download old version
You cannot "downgrade" an app without uninstalling the newer version first. If you own a smartphone running Android 2
: Before uninstalling your current version, create a backup to Google Drive or local storage. Enable Unknown Sources Settings > Apps > Special App Access > Install unknown apps and allow your browser to install APKs. Uninstall Current Version You cannot "downgrade" an app without uninstalling the