Question about the green party

[ByGrabtharsHammarWhatASaving]

Does anyone know what the interaction between this website

www.greenparty.org.uk/green-guarantee/

and this website

policy.greenparty.org.uk/

is?

Is the latter an expanded version of the former? Or a previous version? It obviously contains a lot more detail than the manifesto on the main website so I'm wondering if it's official/ up to date.