For anyone wondering, a rebrand has been rumored for some time, and this is the first official press release using a new name.

The really interesting part is them mixing both names in the statement, as if it were separate models.

They’re quoting the customer, who uses “Max”, so they couldn’t fully change it to “8” yet, but wanted to start making the turn.

Maybe a plane can be 737 MAX or 737-8 depending on the point in time it is observed or upgrades it has gotten or paperworks associated with it?

My reading is that it’s the same model: “Their order for additional 737-8s“

The upgrades are necessary in any case to be certified.

To me they seem carefully worded to match some semantic details than simply mixed up.