Latest firmware for LBP325x not on webpage?

[tommeier]

We have several Canon i-SENSYS LBP325x printers with firmware 2.30/PH and I'd like to update other printers from 1.x/PH but just 1.60/PH is available from Canon's website.
Any idea why? And where to get the update pack for 2.30?

Thanks a lot
Thilo