The current version of WhatsApp (as of 2025-2026) requires . This is due to:
: WhatsApp uses a server-side check. If the server sees your app version is too old, it will force a disconnect. Unfortunately, there is no permanent software workaround for this server-side "kill switch." Safety and Security Risks Whatsapp For Kitkat 4.4 2 Download Old Version
Generally considered the safest source for verified, original files. The current version of WhatsApp (as of 2025-2026) requires
Thus, you cannot install the latest .apk from the Play Store or even a 2025 version. You need a from the 2019–2020 period. it will force a disconnect. Unfortunately