Upgrade of other modules may depend on payment_update_8205()

Modules that depend on any Payment 7.x-1.x data during their upgrade process will need to implement hook_update_dependencies() to add an update dependency on the Payment 8.x-2.x upgrade's last update function, which is the one function that drops 7.x-1.x content and configuration that does not need to be upgraded. At the time of writing this change notice, this update function is payment_update_8205().

By adding this dependency, your module's update functions can still use all the old content and configuration, before Payment deletes it.