Since WhatsApp doesn't release updates with version numbers that high (current versions are roughly in the 2.23.x or 2.24.x range for mobile), represents a hypothetical, far-future update.
To ensure you have the real, latest version of WhatsApp, only use official channels: Google Play Store Apple App Store Official Website whatsapp.com whatsapp version 2.3000
Here is informative content regarding , focusing on what this version number signifies, its expected features, and how it fits into WhatsApp’s update cycle. Since WhatsApp doesn't release updates with version numbers