It will be held on Friday, 18 November at the RIBA HQ in London. All delegates will get a the digital/print bundle of the new book included as part of the the booking fee. On top of that if you book before 25 October there's a further £25 off the full price of £160: you'll pay only £135.
Last year's event was a sell-out so it makes sense to book your place as soon as possible. You can do that here.