Latest beta of macOS Big Sur references two Apple silicon iMacs

Jon Prosser Imac 2021colors
Jon Prosser Imac 2021colors (Image credit: Jon Prosser / Front Page Tech)

What you need to know

  • Code in the macOS Big Sur 11.3 beta 5 references two new Apple silicon iMacs.
  • The new iMacs are expected to feature Apple silicon chips and a new design.

The latest beta of macOS Big Sur seems to point to two new Apple silicon iMacs.

As reported by 9to5Mac, Apple released macOS Big Sur 11.3 beta 5 to developers and public beta users today and, within the code, Apple makes reference to new models of the iMac. According to the code, it appears that both the 21.5-inch and 27-inch iMac will be updated this year.

The latest beta version of macOS Big Sur comes with codes for two new iMacs, which are identified as "iMac21,1" and "iMac21,2" — it's worth mentioning that these numbers are not related to display size.Earlier this year, Bloomberg reported that the codenames of the new iMacs with Apple Silicon chips are J456 and J457, and 9to5Mac was able to confirm that the new models listed in the latest macOS Big Sur beta have the same codename. According to the report, both the 21.5-inch and 27-inch models will be updated sometime this year.

As Apple previously announced, the new versions of the iMac will contain Apple silicon chips, something that seems to have been confirmed by at least one developer last week.

Last week, a developer noticed some crash reports in their app coming from an unknown iMac powered by an ARM processor. At the same time, Apple recently discontinued the iMac Pro and some configurations of the 21.5-inch iMac, which suggests that the updated iMac with M1 (or another Apple Silicon chip) is indeed coming soon.

If you're not planning on or can't wait for the new iMac, check out our list of the Best Mac in 2021.

The new iMac is also expected to experience a major redesign that more closely resembles the Pro Display XDR, the high-end display that is currently sold as the go-to display for Mac Pro users.

Joe Wituschek

Joe Wituschek is a Contributor at iMore. With over ten years in the technology industry, one of them being at Apple, Joe now covers the company for the website. In addition to covering breaking news, Joe also writes editorials and reviews for a range of products. He fell in love with Apple products when he got an iPod nano for Christmas almost twenty years ago. Despite being considered a "heavy" user, he has always preferred the consumer-focused products like the MacBook Air, iPad mini, and iPhone 13 mini. He will fight to the death to keep a mini iPhone in the lineup. In his free time, Joe enjoys video games, movies, photography, running, and basically everything outdoors.