Mark Gurman: incoming CEO John Ternus plans major iOS 27 overhaul

Apple’s next chief executive, John Ternus, is being linked to one of the company’s next major software projects before he formally takes over the top job. Apple said on April 20 that Ternus, its senior vice president of hardware engineering, will become CEO on September 1, 2026, succeeding Tim Cook. Mark Gurman of Bloomberg has separately reported that iOS 27 is being developed with an emphasis on cleaning up older code and improving underlying performance. Reports circulating this week tied that work to Ternus’ coming tenure, though Apple has not publicly described iOS 27 as his first signature initiative. ### What has Apple actually confirmed about John Ternus? Apple confirmed in a newsroom statement that Ternus will become chief executive effective September 1, 2026, while Cook becomes executive chairman. The company said the board approved the transition unanimously and described it as part of a long-term succession process. (apple.com) John Ternus has led Apple’s hardware engineering organization since 2021, according to Apple’s announcement, after joining the company’s product design group in 2001. Apple said he has worked on hardware for the iPhone, iPad, Mac, AirPods and Apple Watch. ### Where did the iOS 27 cleanup story come from? (apple.com) Bloomberg’s Mark Gurman reported in February that Apple was preparing iOS 27 with a focus on code cleanup, older app upgrades and interface tweaks, according to a 9to5Mac report summarizing the newsletter. The same report said Apple was aiming to “tidy” the code base and pursue efficiency gains that could help battery life. 9to5Mac, citing Gurman, described iOS as “a bit of the mess under the hood” and said Apple’s engineers were working on underlying changes rather than only visible new features. The report did not, in the material available publicly, attribute a 300 million line reduction or a precise 20% battery-life target directly to Gurman. (9to5mac.com) ### Did Gurman say Ternus would make iOS 27 his first big move? Publicly available reporting reviewed here shows Gurman has described Ternus as a more decisive incoming chief executive and has reported separately on iOS 27’s quality-focused development. A 9to5Mac report on Gurman’s April 21 Bloomberg profile said people who worked with both executives expected Ternus to make clearer product calls than Cook. (9to5mac.com) The social-media claim that iOS 27 would be Ternus’ “first big move” appears to be an interpretation or paraphrase of those separate reports rather than language Apple has confirmed. The same is true of the more specific figures about code removal and battery gains, which were widely repeated online but were not verifiable in the source material available from Bloomberg previews and secondary reports reviewed here. (9to5mac.com) ### What does reporting say Ternus may do differently from Cook? Gurman’s reporting, as summarized by 9to5Mac, said Ternus is expected to take a more direct role in product decisions. One person who had worked closely with both men told Bloomberg that Ternus would choose between options where Cook often pushed decisions back to the group, according to the summary. (9to5mac.com) Bloomberg also reported on May 3 that Apple had dropped hints Ternus could invest more and rely less on buybacks after taking over, though the preview available publicly did not detail specific capital plans. That same Bloomberg preview said iOS 27 would include new AI and Siri features tied to photo editing, visual intelligence and the camera app. (9to5mac.com) ### When will Apple show more of iOS 27? Apple is expected to present iOS 27 at its Worldwide Developers Conference in June 2026, with multiple Gurman reports on upcoming Siri and Apple Intelligence features pointing to that event. 9to5Mac said this week that iOS 27 is set to be announced in about three weeks, ahead of the formal software rollout later in Apple’s release cycle. (bloomberg.com) September 1, 2026, is the concrete next date for the leadership change itself. WWDC 2026 is the next public milestone for the software, and Apple’s April 20 statement remains the company’s formal timetable for Ternus taking over as chief executive. (apple.com) (9to5mac.com)