Color Efex 4

Good morning. I'm new to this forum, so if what I'm asking is common knowledge, then I apologize in advance.

I'm trying to buy a copy of Color Efex 4 on cd in the UK but can't find anywhere that has a copy in stock (including Amazon UK). Does anyone know if this is still available or is a new version about to be released?

I realise I could get a download from the Nik site but I want a "hard copy" as I use a couple of computers for editing my pics.

Thanks