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The guy who created one of Apple's most beloved technologies is leaving Apple

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Chris Lattner
Chris Lattner.  LinkedIn/Chris Lattner

Chris Lattner, the inventor of Apple's relatively new programming language called Swift, is leaving Apple, he announced on the Swift mailing list on Tuesday as spotted by MacStories' John Voorhees.

Lattner didn't at first give a reason for his exit, simply saying he would leave later this month "to pursue an opportunity in another space." 

However, Tesla later announced via a blog post that Lattner was joining Tesla as its Vice President of Autopilot Software. (He's replacing Jinnah Hosein, SpaceX’s Vice President of Software, who had temporarily stepped into the role at Tesla and will now go back full time to SpaceX.)

Lattner joined Apple in 2005 after leading the creation of another developer tool, known as LLVM, for his Ph.D. LLVM was integrated into Apple's developer tools, and Lattner went on to build much of Swift.

Swift is Apple's language for building Mac and iOS apps. Apple released it at its Worldwide Developers Conference in 2014, and since then it has soared to become one of the most popular programming languages around. In a recent survey on Stack Overflow, a site where developers answer one another's questions, Swift landed as the second-most-loved language, beaten out only slightly by one called Rust (a language led by Mozilla Research).

Ted Kremenek, another power player in the Swift world, will be taking over as the lead developer for Swift at Apple, but Lattner's shoes will be big ones to fill.

As one person said on Hacker News, a site where programmers chat about stuff: "He is leaving Swift in an excellent position and has set up an outstanding structure where Swift is way more than just one person. He spent more than 5 years building Swift inside Apple, so I can definitely understand he is ready for his next challenge."

Other developers are also saluting him on Twitter.

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Julie Bort was Business Insider's Editor at Large for the Tech team. She loves investigating stories and shedding light on the tech industry's most amazing people.Here's a small sample of some of Julie's work.Former Pinterest employees describe a traumatic workplace where managers humiliate employees until they cry, Black people feel alienated, and the toxic culture 'eats away at your soul'Sex, tequila, and a tiger: Employees inside Adam Neumann's WeWork talk about the nonstop party to attain a $100 billion dream and the messy reality that tanked itInsiders say WeWork's IT is a patchwork of cheap devices and Band-Aid fixes that will take millions to fixWeWork's toxic phone booths were created in-house by its Powered by We business70-hour weeks and 'WTF' emails: 42 employees reveal the frenzy of working at Tesla under the 'cult' of Elon MuskElon Musk works so many hours at Tesla, employees are constantly finding him asleep under tables and desksHow this woman went from a Pizza Hut employee to a founder of a $4 billion startupAn Oracle insider explains how some salespeople gamed the system to sell more cloudTHE TAKEDOWN OF TRAVIS KALANICK: The untold story of Uber's infighting, backstabbing, and multimillion-dollar exit packagesMicrosoft is in talks to buy GitHub, a startup at the center of the software world last valued at $2 billionThe alarming inside story of a failed Google acquisition, and an employee who was hospitalizedInside Facebook's plan to eat another $350 billion IT marketHow a registered sex offender wound up living in an Airbnb hosting unsuspecting guestsA controversial ex-banker is the person who really runs Twitter — and he's gambling the company's future on one risky betSecret passages and skipped meals: Oracle's CEO gave us a rare peek at what it really takes to run a $37 billion companyHP told some employees to choose between becoming contractors with no benefits or being fired without severance'I felt like we were being extorted': Customer says Oracle tried to strong-arm him into a cloud saleHow the queen of Silicon Valley is helping Google go after Amazon's most profitable businessAirbnb host: A guest is squatting in my condo and I can't get him to leaveLIES, BOOZE, AND BILLIONS: How one of the fastest-growing startups in Silicon Valley history raised $580 million then spiraled out of controlGitHub is undergoing a full-blown overhaul as execs and employees depart — and we have the full inside storyWhen she's not writing for Business Insider, Julie can usually be found on the trails, on my mountain bike, or on my skis, if you know where to look.