And the you have this part. There is no reason to firmware update, what else do they have to update it for:
Bigtreetech will evaluate each beta firmware release made by Bambu Lab and if we find one that does not support control features for the Panda Touch, we will send an email (or an Aliexpress chat message) to all customers to let them know that a future firmware release may limit the functionality of the Panda Touch. The decision of whether or not to update to that firmware can then be made by you as a customer.
Bambu Lab have indicated to us that the firmware on the P1 series is very stable and therefore there are no known bugs that would necessitate the need for a customer to update.