WhatsApp has been working with moving chat history among Android and iOS devices. It would seem that WhatsApp is dealing with another update that will allow users to move chat history to another phone number also. The new feature is right now in testing on WhatsApp’s Android and iOS applications.
WhatsApp chat history can be backed up to Google Drive (Android) and iCloud (iPhone). But there are limitations as users have to stick to the same platform and phone number to retrieve their WhatsApp chat history while switching to a new device. The new features WhatsApp is working on will be very helpful as it will give users more flexibility over different devices and platforms.
Moving your chat history to another phone number is a part of the chat relocation tool that WhatsApp is developing. It would be a major step for WhatsApp to introduce this feature. There’s no word on when WhatsApp will release the chat migration tool but it’s expected to happen soon.