Apple is making it official: the company will hold a major product unveiling on October 27 where new Macs are expected to debut. The event will take place on Apple’s campus, likely marking the last one before Apple Campus 2 is open for business.

The event is somewhat of a surprise as Apple opted not to hold two fall events last year and all signs pointed to the iPhone 7 event last month being the last before Apple moves into its new campus next year. Mac hardware is due for a refresh, however, and recent reports have insisted Apple is planning to unveil its new computing hardware in October. Recode first reported the date for the event before it went official.

As for what we expect, the whole Mac lineup is due for a refresh aside from the 12-inch Retina MacBook which saw its second version earlier this year. That includes MacBook Airs if the line moves forward, MacBook Pros which are expected to get a significant redesign, iMac desktops, Mac mini desktops, and Mac Pro desktops.

While some Macs are older than others, not all Macs are expected to be refreshed or overhauled at the upcoming event. Mac minis and Mac Pros for example will likely not see a change although it’s possible considering how long the current models have been available (especially in the case of the Mac Pro).

Apple may also introduce a new monitor solution after discontinuing its Thunderbolt Display earlier this year. Mac users have wanted a standalone Retina display like that of the iMac desktop line. Apple’s recent standalone displays have featured 27-inch monitors which would suggest a 5K screen that could be quite pricey. Apple’s AirPort networking hardware could also see a refresh based on shelf life.

Apple Mac invites are out! Next Thursday will be my MacBook Air’s last day trip to Cupertino FOREVER! pic.twitter.com/w0T5YxswMC

— Joanna Stern (@JoannaStern) October 19, 2016