@Moyse007 

Tapo device firmware are gradually released to Tapo users, not all in once, so you may find that some cameras receives an update while some camera doesn't, this is common.   It is recommended to wait for some time  like a some weeks before the firmware has been pushed to more Tapo cameras and update firmware  for camera later in the APP. 

How to update firmware of Tapo cameras in Tapo app

If you still did not get this update after a few weeks, try to factory reset and camera reinstall the camera,  usually smart device will receive the latest firmware in Tapo APP at the end of setup process. Hope this helps.