(Example: WhatsApp version 2.18.110 for iOS 10.3.3)
Based on your query, it seems you are looking for a post regarding , specifically mentioning the build number 10.33 (or potentially referring to iOS 10.3.3). whatsapp for ios 1033 work
Even if you have the app installed from an old backup, WhatsApp will block you from verifying your phone number or connecting to servers. (Example: WhatsApp version 2