Sixth OS X El Capitan Beta Includes More Hints to 4K 21.5-Inch Retina iMac
Apple's sixth OS X 10.11 El Capitan beta, released on Monday, includes a few lines of code that yet again reference the possibility of a forthcoming 4K 21.5-inch Retina iMac, as discovered by Consomac [Google Translate]. A similar occurance happened back in June, when some code in the second OS X El Capitan beta referenced a 4K 21.5-inch iMac screen, but, as yet, Apple hasn't given any word on the veracity of the rumors.
Consomac's research into the code of the new OS X beta found three new files, two of which include screen resolutions that hint at the possible arrival of new 5K 27-inch iMacs, and the other with a 4096×2304 resolution. Like the second El Capitan beta, this code could potentially refer to a 21.5-inch Retina iMac display with 4K resolution coming down the line. Although, as Consomac discovered, an image accompanying the three files points to a design that will largely "remain unchanged" for the new line-up.

Beginning last October, Apple launched a few updates for the 27-inch iMac with Retina Display, but the rest of the iMac line-up hasn't seen a proper upgrade since September 2013. The major reasoning behind the stalled upgrade cycle is the company waiting for Intel's various desktop components -- including the Broadwell and Skylake processors -- to be available for a more substantial update to Apple's smaller-sized desktop computer line-up.
An update to the 21.5-inch iMac line has been hinted at for a while now, including a rumor just yesterday from KGI Securities analyst Ming-Chi Kuo that pointed to the iMac line gaining a significant boost this quarter. Kuo points to display improvements with greater color saturation thanks to a few new processors, but never references directly the arrival of a retina display for the 21.5-inch iMac line. Still, the timing with back-to-school shopping swinging into gear, and the lengthy update cycle of the 21.5-inch line-up, definitely suggests an impending update for the model sometime soon.
Popular Stories
Apple may have canceled the super scratch resistant anti-reflective display coating that it planned to use for the iPhone 17 Pro models, according to a source with reliable information that spoke to MacRumors.
Last spring, Weibo leaker Instant Digital suggested Apple was working on a new anti-reflective display layer that was more scratch resistant than the Ceramic Shield. We haven't heard...
Apple has completed Engineering Validation Testing (EVT) for at least one iPhone 17 model, according to a paywalled preview of an upcoming DigiTimes report.
iPhone 17 Air mockup based on rumored design
The EVT stage involves Apple testing iPhone 17 prototypes to ensure the hardware works as expected. There are still DVT (Design Validation Test) and PVT (Production Validation Test) stages to...
Apple will likely manufacture its 20th anniversary iPhone models in China, despite broader efforts to shift production to India, according to Bloomberg's Mark Gurman.
In 2027, Apple is planning a "major shake-up" for the iPhone lineup to mark two decades since the original model launched. Gurman's previous reporting indicates the company will introduce a foldable iPhone alongside a "bold"...
This week marks the 10th anniversary of the Apple Watch, which launched on April 24, 2015. Yesterday, we recapped features rumored for the Apple Watch Series 11, but since 2015, the Apple Watch has also branched out into the Apple Watch Ultra and the Apple Watch SE, so we thought we'd take a look at what's next for those product lines, too.
2025 Apple Watch Ultra 3
Apple didn't update the...
Apple is preparing to launch a dramatically thinner iPhone this September, and if recent leaks are anything to go by, the so-called iPhone 17 Air could boast one of the most radical design shifts in recent years.
iPhone 17 Air dummy model alongside iPhone 16 Pro (credit: AppleTrack)
At just 5.5mm thick (excluding a slightly raised camera bump), the 6.6-inch iPhone 17 Air is expected to become ...
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices.
Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025:
Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
All upcoming iPhone 17 models will come equipped with 12GB of RAM to support Apple Intelligence, according to the Weibo-based leaker Digital Chat Station.
The claim from the Chinese leaker, who has sources within Apple's supply chain, comes a few days after industry analyst Ming-Chi Kuo said that the iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max will all be equipped with 12GB of RAM.
...
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...