iOS Versions

The 2007 unveiling and the original iPhone

Steve Jobs introduced iPhone at Macworld on January 9, 2007 ("an iPod, a phone, and an internet communicator — an iPod, a phone… are you getting it?"). The phone shipped on June 29, 2007 on AT&T (then operating under the Cingular brand). iPhone OS 1.0 ran with no third-party native apps; Apple's official position was that web apps in Mobile Safari were the developer story. That position lasted about eight months.

The App Store reversal (2008)

iPhone OS 2.0 in July 2008 shipped alongside the App Store and the first public iPhone SDK in Xcode 3.1. The reversal was enormously consequential. It created the modern app economy, established the 30% revenue split that has been the central object of regulatory and antitrust complaints ever since, and turned the iPhone from a phone-with-apps into a platform. Every fight in this section — Epic, the EU Digital Markets Act, the US DOJ's 2024 case — traces back to the rules Apple wrote in 2008. Apple has since added a parallel enforcement layer at the developer toolchain level: the App Store has an evolving submission-floor requirement on the minimum Xcode and SDK that any new submission must be built with — missing the floor silently rejects submissions at upload time.

The Flash war (2010)

Steve Jobs's open letter "Thoughts on Flash" in April 2010 cemented iOS as a Flash-free platform and helped push the entire web toward HTML5 video. Adobe stopped developing mobile Flash within 18 months and announced the desktop Flash plugin's end-of-life in 2017. A major industry inflection point that doesn't get the press it deserves.

The Forstall era and the Maps firing (2007–2012)

Scott Forstall led iOS from inception — first as VP of iPhone Software, then as SVP. iOS 6's September 2012 launch swapped Google Maps for Apple Maps and, by Apple's own subsequent admission, shipped before it was ready. Tim Cook published a public apology letter on September 28, 2012 recommending users try competing map apps. On October 29, 2012, Apple announced Forstall's departure (reporting at the time pointed to his refusal to sign the Maps apology letter as the proximate cause). Craig Federighi took over iOS, Jony Ive took over the human-interface direction, and the trajectory shifted within a year toward iOS 7's flat redesign.

The Federighi / Ive design reset (iOS 7, 2013)

WWDC 2013 unveiled a wholesale visual redesign — flat surfaces, lighter typography (Helvetica Neue Light at first, softened to Regular weight after legibility complaints), translucency, parallax wallpapers. A polarizing release at the time. The visual language held for twelve years until iOS 26's Liquid Glass redesign in 2025 supplanted it.

The FBI fight (2016)

After the December 2015 San Bernardino attack, the FBI obtained a court order under the All Writs Act compelling Apple to write a custom iOS build that would defeat the device-passcode brute-force protections on a recovered iPhone 5c. Apple publicly refused; Tim Cook published a "Message to Our Customers" the next day. The case ended without a ruling on the merits when the Department of Justice withdrew after a third party — later reported as Cellebrite — unlocked the phone. The episode locked in iOS's posture on full-disk encryption and lawful-access requests for the next decade.

Batterygate (2017)

Apple acknowledged in December 2017 that iOS would throttle older iPhones with degraded batteries to prevent unexpected shutdowns, without disclosing the throttling to users. The acknowledgment came after independent benchmarks found the throttling. A class-action settlement followed in 2020 for roughly $500M to US consumers. The episode produced two lasting changes: a Battery Health UI in Settings that surfaces maximum capacity and peak-performance state, and a meaningful shift in how the iOS team communicates power-management changes.

The iPadOS fork (2019)

iOS 13 was the last iOS on iPad. From WWDC 2019 onward iPad runs iPadOS — the same kernel, the same SDKs, but a separate brand and a faster cadence on tablet-specific features (Stage Manager, full external-display support, multi-window apps, more aggressive desktop-class browsing). The two operating systems are still released on the same calendar and in the year-based scheme run together — iPadOS 27 shipped alongside iOS 27 on September 14, 2026. The fork is no longer purely cosmetic on the hardware side: iOS 27 left the iPhone requirement at iPhone 11 and later while iPadOS 27 moved every iPad family up a generation.

App Tracking Transparency (2020–2021)

Introduced as a framework in iOS 14 in September 2020, enforced starting iOS 14.5 in April 2021. ATT requires apps to ask the user before tracking them across other apps and websites. Most users said no. Meta publicly attributed roughly $10B in 2022 ad-revenue impact to ATT — a single OS-update toggle reshaping a Fortune-30 P&L. The single largest consumer-facing iOS policy change of the 2020s and the central exhibit in Apple-vs.-ad-tech tensions, including in the FTC's evolving guidance and the EU Commission's parallel review.

The sustained pressure has come from competition regulators rather than privacy ones, on the theory that Apple applies stricter consent rules to third-party apps than to its own advertising: France's Autorité de la concurrence fined Apple €150 million over the framework on March 31, 2025 (Decision 25‑D‑02), and Italy's AGCM €98.6 million in December 2025. Germany's Bundeskartellamt took the remedy route instead — it opened its proceeding in June 2022 under Section 19a of the German Competition Act, the provision covering firms of “paramount significance for competition across markets,” and closed it on August 17, 2026 by declaring Apple's offered commitments binding. Under those commitments Apple will remove discouraging symbols and wording from the prompt it predefines for third-party apps, make that prompt neutral in content, wording and layout and closely aligned with the one Apple shows for its own offerings, and give publishers more room to combine it with the consent they already need under data-protection law; Apple has four months from service of the decision to implement, the commitments run for seven years, and an independent trustee monitors compliance (Bundeskartellamt, August 17, 2026).

Epic v. Apple (2020–present)

Epic Games shipped a direct-payment update inside Fortnite on August 13, 2020. Apple removed Fortnite from the App Store the same day. Epic sued the same day with a pre-rendered "1984"-parody video already in the can. Judge Yvonne Gonzalez Rogers ruled in September 2021 — largely in Apple's favor on monopoly claims under the Sherman Act, but found Apple's anti-steering provisions violated California's Unfair Competition Law. The Ninth Circuit affirmed. The Supreme Court declined cert in January 2024, making the ruling final.

In April 2025, Judge Gonzalez Rogers found Apple in willful contempt of the anti-steering injunction over its revised "27% commission on web payments" compliance scheme. Apple's compliance design was, in her words, "an obvious cover-up," and the order referred a senior Apple finance executive for criminal-contempt review. The Ninth Circuit affirmed the contempt finding on December 11, 2025 while narrowing the remedy to a cost-recovery commission, sending the question of permissible fees back to Judge Gonzalez Rogers. On April 28, 2026 the Ninth Circuit reversed its own stay of that mandate, forcing Apple back into the district court to litigate the cost-recovery fee with Epic. Apple filed an emergency stay application with the Supreme Court on May 4, 2026, which Justice Elena Kagan denied on May 6, 2026; Apple then filed a formal certiorari petition on May 21, 2026 — its second trip to the Court after the January 2024 denial — arguing the "spirit"-based contempt finding and the all-developers scope of the injunction exceed the case. On June 30, 2026 the Supreme Court granted certiorari (Apple Inc. v. Epic Games, Inc., No. 25-1311) — a reversal from its January 2024 refusal to take up the underlying antitrust dispute — but granted limited to the first of the two questions Apple presented: whether a court may hold a party in civil contempt based on a violation of an injunction's "spirit" where the injunction is silent as to the conduct at issue, or whether contempt must instead rest on an order that clearly and unambiguously proscribes the precise conduct. The Court declined to take up Apple's second question, which argued the injunction's all-developers scope ran afoul of the universal-injunction limits set in Trump v. CASA — so that scope challenge is not part of the appeal. The case sits in the term that opens October 2026; meanwhile the contempt-track anti-steering rules and the district court's cost-recovery-fee remand remain in effect pending the decision. In a joint stipulation dated July 1, 2026, Apple told the district court it intended to move to stay the fee-remand proceedings pending the Supreme Court's review, and on July 2, 2026 Judge Gonzalez Rogers signed the stipulated order continuing the remand deadlines until she resolves that motion — the first sign the fee fight may pause rather than run in parallel with the Supreme Court appeal (Dkt. 1696). Apple filed the stay motion on July 6 (Dkt. 1697); Epic opposed on July 10, calling the request Apple's "third attempt to delay the inevitable" and arguing that the remand proceedings would look much the same regardless of the certiorari grant (Dkt. 1698); Apple replied on July 13 (Dkt. 1699) and filed a statement of recent decision on July 17 (Dkt. 1700). Judge Gonzalez Rogers heard the motion in Oakland on August 11, 2026 and denied it in full the same day, writing that the Supreme Court's "grant of a narrow review of the contempt proceedings does not substantially impact the factual issues that must be resolved to ensure compliance with the injunction," that a stay "prejudices plaintiff and others, while allowing Apple to continue to frustrate the injunction," and that Apple had to file its proffer within 24 hours (Dkt. 1706). Apple went back to the Supreme Court instead: on August 12 it applied to Justice Kagan to stay the district-court proceedings (No. 26A194), and she entered an administrative stay lasting only until 5 p.m. EDT on August 13 before denying the application outright that day — her second refusal to stay this case in three months. Apple filed its remand proffer on August 13, proposing that it be allowed to charge US linked-out commissions of 15 percent for standard apps, 10 percent for the Video Partner, News Partner and Mini Apps Partner programs and for subscription renewals, and 5 percent for Small Business Program apps; the filing concedes that a commission limited strictly to Apple's "necessary costs" would not support a rate above zero percent, and argues the injunction should instead be read to bar only "prohibitive" commissions (Dkt. 1708). Apple moved the same day to refer the parties to a settlement conference before Magistrate Judge Joseph C. Spero (Dkt. 1710); Epic responded on August 17 that it "always has been, and remains today, willing to entertain any direct approach from Apple with a serious settlement proposal that would introduce competition and benefit all developers" but does not believe a referral would meaningfully advance those prospects, while agreeing to participate in good faith if ordered (Dkt. 1713). Alongside the proffer on August 13, Apple moved to file portions of it and of the supporting expert reports of Paul Meyer, Michael Lasinski and Dennis Carlton under seal (Dkt. 1709); Epic opposed on August 21, objecting that Apple proposes to seal “central portions of the analysis it puts forward as the crux of its proposed commissions, even though that information is not competitively sensitive,” and attaching an exhibit itemizing each redaction it contests (Dkt. 1716). On September 10, 2026 the parties filed a joint status report on Apple's document production under the May 20, 2026 remand order (Dkt. No. 1687), reporting that they met and conferred on August 28 about Apple's initial productions, that they are still conferring over the scope of that production, and that Epic's 60-day clock to respond to the proffer has therefore not yet begun to run — it starts from the later of the proffer's filing or Apple's completion of production. They told the court they intend to file a further update two weeks on (Dkt. 1717). Both the settlement-referral motion and the sealing motion were still undecided as of September 15, 2026, with nothing docketed after that status report. At the Supreme Court, merits briefing has been pushed back once: Apple moved on July 22, 2026 for more time, and the Court granted the extension the following day, setting Apple's opening brief and the joint appendix for September 14, 2026 and Epic's responding brief for November 13, 2026. Apple filed both its opening brief and the joint appendix on September 14, 2026, on the extended deadline. No argument date had been set as of September 15, 2026.

The EU Digital Markets Act (2023–present)

The European Commission designated Apple as a Digital Markets Act "gatekeeper" on September 6, 2023. iOS 17.4 (March 2024) introduced the EU-only changes: third-party app marketplaces, alternative browser engines other than WebKit, NFC opening to third-party contactless payments, and default-app changes for browser, mail, and other categories. The most significant structural change to iOS distribution since the App Store launched, scoped strictly to the EU. The Commission issued the first formal DMA non-compliance decision on April 22 – 23, 2025, fining Apple €500 million for ongoing anti-steering violations under Article 5(4); Apple appealed to the EU General Court in July 2025. On July 8, 2026, the General Court ruled on a separate, earlier-filed challenge (Cases T‑1079/23, T‑1080/23 and T‑214/24) — rejecting Apple's bid to overturn the underlying September 2023 gatekeeper designation of the App Store and iOS, holding the parallel challenge over iMessage inadmissible, and leaving the DMA compliance obligations intact. The ruling can still be appealed on points of law to the Court of Justice, and the €500 million fine appeal remains separately pending before the same court (Courthouse News Service, July 8, 2026). On August 18, 2026 Apple announced a single unified set of EU business terms that it said “resolve Apple’s disagreements with the Commission over business terms and alternative distribution,” taking effect October 1, 2026: the per-install Core Technology Fee is replaced by a flat 5 percent Core Technology Commission on digital transactions in apps distributed outside the App Store; the initial acquisition fee and store services fee are eliminated; App Store commission is reset to 26 percent with Apple In-App Purchase, 20 percent with alternative in-app payment processing, and 15 percent for linking out to the web, each dropping to 15 or 10 percent for Small Business, Mini Apps Partner and Video Partner Program developers and for auto-renewing subscriptions after the first year; developers may for the first time in the EU offer Apple In-App Purchase alongside an alternative payment option; eligibility to run an alternative marketplace or distribute via the web is widened beyond the old financial bar; and alternative payments pick up Kids-category and under-18 parental-gate restrictions (Apple Newsroom, August 18, 2026). The Commission accepted the package rather than escalating — a spokesperson said it “welcomes Apple’s changes to their business terms” and will “monitor Apple’s effective implementation of the new terms,” adding that “at this stage the Commission is not considering periodic penalty payments,” the daily fines that had hung over the April 2025 non-compliance decision. The €500 million fine itself remains on appeal (AFP via Courthouse News Service, August 18, 2026). Enforcement has also picked up a national dimension inside the EU: Italy's competition authority announced on June 16, 2026 that it had opened an investigation — the first any national authority has brought under Article 38(7) of the DMA — into whether Apple denies third-party consumer-cloud providers the same iOS and iPadOS interoperability iCloud gets, singling out the full-device-backup features alternative cloud services cannot reach. It was opened in cooperation with the Commission, which remains the sole DMA enforcer and receives the findings (AGCM, June 16, 2026). Other jurisdictions have followed: Japan's Mobile Software Competition Act entered into force December 18, 2025; the UK CMA designated Apple as having Strategic Market Status on October 22, 2025 and published Apple's final commitments on app review, app ranking, use of data and interoperable access on April 1, 2026, then on June 30, 2026 opened a consultation on a proposed “steering” conduct requirement — which would let developers point users out of an app to transact, with any commission Apple charged on those transactions required to be “fair and reasonable” — alongside a call for evidence on NFC access on iOS (CMA case page). Apple's submission opposing the steering proposal, reported July 29, 2026, argued it would give the regulator a “highly intrusive” role in managing Apple's business and that the CMA “would not only regulate Apple's prices, but also restrict the products and services for which Apple can charge a commission.” The CMA published the non-confidential consultation responses on August 14, 2026; as of September 15, 2026 it had not imposed the conduct requirement, and nothing further had been added to its case page since that August 14 publication. The US DOJ filed its smartphone-monopoly suit in March 2024. Brazil is the newest: under an agreement with the competition regulator CADE, Apple announced on June 18, 2026 that iOS in Brazil now permits alternative app marketplaces and payment processing outside In-App Purchase, gated by Notarization and a marketplace-authorization process, and priced under a reworked commission schedule — a reduced 10 or 21 percent App Store commission, a 15 percent store-services commission on web-linked transactions, and a 5 percent Core Technology Commission on apps distributed outside the App Store. The capabilities reached developers that day as part of iOS 26.5 (Apple Newsroom, June 18, 2026). The first alternative marketplace went live there on July 30, 2026, when Epic Games made the Epic Games Store installable on iPhone in Brazil carrying Fortnite and Rocket League Sideswipe; Epic used the launch announcement to object that Apple's Brazilian install flow runs to nine steps against the six Apple settled on in the EU after regulatory pressure, and said it had told Brazilian regulators the same (MacRumors, July 30, 2026).

At WWDC26 (June 8, 2026), Apple announced that Siri AI — the centerpiece of the iOS 27 release previewed at the same event — would not ship in the EU on iOS 27 or iPadOS 27, and on September 14, 2026 it launched exactly that way: Apple's release-day materials state that “Siri AI will not be available initially in the EU in iOS, iPadOS, and watchOS,” along with any feature that depends on it. Craig Federighi cited EU regulators' refusal to accept Apple's proposed privacy-preserving solutions; under EU regulators' interpretation of the DMA, Apple would be required to give any competing virtual assistant direct access to user data and the ability to control installed apps. The carve-out is narrower than “no Apple Intelligence in the EU” — the rest of the next-generation feature set (the Photos editing tools, the rebuilt Image Playground, the Safari browsing tools) is available to EU users on iOS 27 and iPadOS 27, and Siri AI itself is available in the EU on macOS 27 and visionOS 27. EU users on watchOS 27 are excluded, because Siri AI on watchOS requires a paired iPhone running Siri AI. Apple says it proposed a "Trusted System Agent" intermediary and an 18-month phased rollout, both of which the European Commission rejected. Apple said on release day only that it “is working hard to find a path forward that preserves its users' privacy and security”; as of September 15, 2026 it had still given no timeline for iOS/iPadOS availability in the EU. The Commission publicly disputed Apple's framing the next day, with a spokesperson telling reporters in Brussels on June 9, 2026 that nothing in the DMA prohibits Apple from shipping Siri AI in the EU and that the decision not to roll it out is "Apple's and Apple's only." (Apple Newsroom, June 8, 2026.)

The Apple Intelligence launch (2024–present)

iOS 18 introduced Apple Intelligence on supported devices (iPhone 15 Pro and newer, plus the iPhone 16 lineup), with the OpenAI partnership for ChatGPT-backed Siri fallback announced at WWDC 2024. Features rolled out in 18.1 (October 2024) and 18.2 (December 2024). iOS 26 continued the rollout with Live Translation in Messages, Phone, and FaceTime. The first major on-device AI bet for iOS. Privacy framing — on-device by default, falling back to a "Private Cloud Compute" tier on Apple-controlled servers and only optionally to ChatGPT — is the explicit differentiator from Google's cloud-first Gemini stack on Android.

At WWDC26 (June 8, 2026), Apple previewed the next generation of Apple Intelligence for iOS 27, built on a "bold new architecture uniquely designed to protect users' privacy." The headline is Siri AI: a new version of Siri with personal context understanding across apps and messages, onscreen awareness, broad web knowledge, and a dedicated conversation-history app synced via iCloud. Additional next-gen AI features include Spatial Reframing in Photos, Notify Me in Safari (monitors pages for changes), new Image Playground photorealistic style, and one-tap action suggestions in Messages. WWDC26 also headlined an overhauled set of parental controls and a redesigned Screen Time — child accounts with age-appropriate protections, per-contact approval, communication-safety interventions for gore and explicit content, and category-based daily time allowances. Apple began staging the transition on shipping devices with iOS 26.6 on July 27, 2026, which optimizes the on-device Spotlight index that both the rebuilt Spotlight and Siri AI read from in iOS 27.

It shipped on schedule. iOS 27 entered developer beta on June 8, 2026 and public beta on July 13, 2026, reached developer beta 8 (build 24A5430a) on August 31, 2026, and got its release candidate (build 24A437) on September 11 — five days after Apple's September 9, 2026 special event, held under the tagline “Surprise and shine.” iOS 27 was released to the public on September 14, 2026 on the same build as the release candidate, alongside iPadOS 27, macOS 27 Golden Gate, watchOS 27, tvOS 27, visionOS 27, and a same-day iOS 26.7 for devices staying on the previous branch (Apple Newsroom, September 14, 2026).

The shipped product is narrower than the June preview implied in one specific way: Siri AI is a beta, and English-only at launch, with Apple stating French, Japanese, Korean, Portuguese, and Spanish for October 2026. Apple did not ship it in the EU on iOS, iPadOS, or watchOS, the carve-out it announced at WWDC26 (see the Digital Markets Act section) — though EU users do get the rest of the next-generation Apple Intelligence features on iOS 27 and iPadOS 27, and can reach Siri AI on macOS 27 and visionOS 27. None of the new features ship in China while Apple works through regulatory requirements. The hardware floor also stayed where the preview put it: Apple Intelligence and Siri AI require iPhone 16 or later, iPhone 15 Pro / Pro Max, iPhone Air, iPad mini (A17 Pro), or an M1-or-later iPad or Mac — a much newer device than iOS 27 itself needs.

People who actually shaped it

Steve Jobs (iPhone OS 1.0–iOS 5.0, died October 5, 2011). Scott Forstall, founding head of iPhone Software, fired October 2012 over the Apple Maps launch. Avie Tevanian and Bertrand Serlet, the NeXT-era foundational engineering on which iOS was built. Craig Federighi, took over iOS in 2012, current SVP of Software Engineering and the public face of every WWDC keynote since. Jony Ive, industrial-design influence on the original iPhone; led iOS 7's redesign; left Apple in June 2019 to found LoveFrom. Greg Christie, Human Interface director through the Forstall era, retired 2014. Tim Cook, CEO from August 2011 to September 1, 2026, and executive chair of the board since. Apple announced the succession on April 20, 2026, and it took effect on schedule: John Ternus, until then SVP of Hardware Engineering, became CEO and joined the board of directors on September 1, 2026 — the first CEO change at Apple since Cook succeeded Jobs. Eddy Cue, services, including the App Store and Apple Pay. Phil Schiller, long-running App Store oversight, currently Apple Fellow. Henri Lamiraux, long-time Apple engineering VP. Kim Vorrath, program-management lead — moved from iOS to Apple AI/ML in recent reorgs.

The sibling-OS family

iOS is the foundation. iPadOS forked in 2019 (same kernel, separate brand). watchOS shipped in April 2015 alongside the original Apple Watch. tvOS shipped in October 2015 on the fourth-generation Apple TV. audioOS on HomePod debuted in 2018. visionOS shipped on Apple Vision Pro in February 2024. All share Darwin foundations with macOS but ship on different release cadences. From WWDC 2025 forward all of them, plus macOS, run a unified year-based version number. The second generation of that scheme shipped together on September 14, 2026: iOS 27, iPadOS 27, macOS 27 Golden Gate, watchOS 27, tvOS 27, and visionOS 27, succeeding the 26 wave (macOS 26 was Tahoe).

Internal codenames

Apple's iOS releases have always carried internal ski-resort and place-name codenames, leaked over the years through commit messages, build configs, and the Apple Developer site itself. The list is, in order: Alpine (1.0), Little Bear (1.1), BigBear (2.0), Sugarbowl (2.1), Timberline (2.2), Kirkwood (3.0), Apex (3.1), Northstar (3.2 iPad), Baker (4.0), Jasper / Telluride (5.0), Sundance (6.0), Innsbruck (7.0), Okemo (8.0), Stowe / Monarch (9.0), Whitetail (10.0), Tigris (11.0), Peace (12.0), Yukon (13.0), Azul (14.0), Sky (15.0), Sydney (16.0), Dawn (17.0), Crystal (18.0), Luck (26.0). They're not officially confirmed by Apple but are stable enough that they are widely cited inside the developer community.