I don't think they've called it a rebrand. "Renewing their branding" seems like a longer way of saying it but certainly sounds less extreme. They're specifying

I don't think they've called it a rebrand. "Renewing their branding" seems like a longer way of saying it but certainly sounds less extreme. They're specifying things like proportions of text to the rings, how the tagline should or should not appear, icons that should be used across all digital products, etc. There's a lot of interesting stuff here.