MacRumors

Apple this week updated its App Store Review Guidelines for developers, tweaking some existing rules and adding new rules that dictate what developers can and can't include in their apps. Most of the changes introduced are modest and reflect policies that Apple has already put in place, but there are some notable additions.

Rule 2.3.1, which says developers should not include hidden or undocumented features in apps, has been updated with new language that expressly prevents developers from creating iOS-based virus and malware scanners.

Similarly, you should not market your app on the App Store or offline as including content or services that it does not actually offer (e.g. iOS-based virus and malware scanners). Egregious or repeated behavior is grounds for removal from the Developer Program. We work hard to make the App Store a trustworthy ecosystem and expect our app developers to follow suit; if you're dishonest, we don't want to do business with you.

Apple has been removing anti-virus and anti-malware apps from the App Store since 2015, in an effort to prevent customers from believing that it's possible for iOS devices to contract viruses and malware. Popular anti-virus app VirusBarrier, for example, was pulled from the App Store in March of 2015. Though there's been an unspoken ban on many of these apps, it's now official.

Apple's new App Store rules also make it clear that children under 13 will not be permitted to use the Face ID facial scanning feature in the iPhone X. Rule 2.5.13 says apps using facial recognition for account authentication must offer an alternate authentication method for users under 13 years old.

Furthermore, Apple requests that all apps using ARKit provide "rich and integrated augmented reality experiences," preventing apps from misusing the feature for simple implementations.

Apps using ARKit should provide rich and integrated augmented reality experiences; merely dropping a model into an AR view or replaying animation is not enough.

Apple's newly updated App Store Guidelines are available on its developer website.

iOS 11, which introduces ARKit, a revamped App Store, and a long list of other features and design changes will be released to the public next Tuesday, on September 19.

Face ID, Apple's new facial recognition feature in the iPhone X, has left users with a lot of questions about how it works. While Apple has offered detailed explanations of Face ID on its website, there continue to be questions and concerns given that this is a new biometric system.

To answer some of those questions, Apple software engineering chief Craig Federighi did a telephone interview with TechCrunch, where he covered topics on privacy, security, and functionality.

TechCrunch's Matthew Panzarino, who spoke to Federighi, says he's heard Face ID is "incredibly reliable" and "very fast," worth noting because many people have wondered how quickly it works.

According to Federighi, Face ID needs to see your eyes, nose, and mouth, so there are some situations where it won't work and a passcode will need to be used instead. The limitations are similar to the limitations with Touch ID, which, for example, prevent it from being used with gloves.

"If you're a surgeon or someone who wears a garment that covers your face, it's not going to work," says Federighi. "But if you're wearing a helmet or scarf it works quite well."

Panzarino asked Federighi to expand on how the feature works with sunglasses and whether polarization is an issue, following confirmation earlier this week that Face ID is compatible with most pairs. Federighi says polarization isn't a problem, but there are some lenses that have a coating that blocks IR, and if that's the case, a customer will need to use a passcode or take them off.

Face ID will work from multiple angles and distances when a device is held at a natural angle, but it needs to see your face.

"It's quite similar to the ranges you'd be at if you put your phone in front facing camera mode [to take a picture]," says Federighi. Once your space from eyes to mouth come into view that would be the matching range - it can work at fairly extreme angles -- if it's down low because your phone is in your lap it can unlock it as long as it can see those features. Basically, If you're using your phone across a natural series of angles it can unlock it."

When it comes to security, Apple says that all Face ID processing is done on device with nothing uploaded to the cloud or Apple's servers, a point Federighi reiterated in the interview. Apple collects no data when the TrueDepth camera in the iPhone X scans your face, and the feature that allows Face ID to adapt to appearance changes is done entirely on device.

"We do not gather customer data when you enroll in Face ID, it stays on your device, we do not send it to the cloud for training data," he said.

When it comes to law enforcement requests for Face ID data, Apple has no data to provide. Your Face ID scan is converted into a mathematical model in the Secure Enclave on the iPhone X, and it can't be reverse engineered back into a face. As with Touch ID, none of that data is ever sent to Apple. Third-party developers don't have access, either.

Federighi also expanded a bit on the method Apple implemented to discreetly disable Face ID in a situation where someone might steal your phone and attempt to unlock it with your face. On the iPhone X, holding down on the buttons on either side of the device goes to the power down screen, which also disables Face ID. If someone demands your phone, squeeze the buttons to disable Face ID, Federighi suggests.

Face ID will also disable itself after five failed attempts at recognition. Earlier this week, Apple documentation suggested it would be disabled after two failed recognition attempts, but Federighi has clarified that it's five, just like Touch ID. Apple's documentation has now been updated accordingly. Also, when the iPhone reboots or Face ID hasn't been used in 48 hours, a passcode will be required. Additionally, if you haven't entered a passcode for 6.5 days and Face ID hasn't been used in the last four hours, Face ID will also be disabled until a passcode is entered.

Federighi's full interview, which includes more details on how Apple trained Face ID and how it works, can be read over at TechCrunch.

With the LTE-enabled Apple Watch Series 3 only available in a handful of countries at the current time, it might be tempting to purchase one in another country, but it won't work. Series 3 models appear to be limited to connectivity in their original country of purchase.

An Apple support representative who spoke to MacRumors reader Thomas said that an Apple Watch purchased in the U.S. online store will only work with the four carriers in the United States, perhaps due to hardware limitations.

"If you purchased one (an Apple Watch S3 GPS + Cellular) through the US Apple Online Store, it'll only work for the 4 US carriers. It wouldn't work internationally unfortunately. I'm not entirely sure what type of error it would show if you took a US Watch to Germany, but it wouldn't be compatible with Telekom".

Additionally, Apple Watch Series 3 models do not support roaming outside of a provider's network coverage area, according to Apple's fine print, so roaming when traveling to another country is not supported.

Unlike iPhones, Apple Watch Series 3 models also support a limited number of LTE bands, another factor that contributes to no support between countries. In the U.S., Canada, and Puerto Rico, for example, only bands 2, 4, 5, 12, 13, 17, 18, 19, 25, 26, and 41 are supported.

LTE Apple Watch models are currently only available in Australia, Canada, China, France, Germany, Japan, Puerto Rico, Switzerland, the UK, and the United States. Apple says availability will expand to other countries next year.

At the Open Innovation Platform Ecosystem Forum in Santa Clara on Wednesday, chip foundry TSMC provided an update (via EE Times) on the progress of its forthcoming technology nodes, several of which would be candidates for upcoming Apple chips. Most notably, the company's first 7-nanometer process node has already had several tape-outs (finalized designs) and expects to reach volume capacity in 2018.

TSMC's 10 nm node, which first showed up in Apple's A10X chip in the iPad Pro, followed by the A11, has been fraught with issues (paid link) such as low chip yield and performance short of initial expectations. TSMC looks to change its fortune with the new 7 nm node, which would be suitable for the successor to the A11 chip given current timelines.

In addition to the 7 nm node, TSMC also shared information on the follow-up revision to this node, dubbed, N7+. Featuring the long-beleaguered Extreme Ultraviolet Lithography (EUV), the revision would promise 20 percent better density, around 10 percent higher speeds, or 15 percent lower power with other factors held constant.

While EUV has faced delays for over a decade at this point, it seems to finally be coming to fruition, and a 2019 volume availability update would allow Apple to update its chip process in subsequent years yet again. Apple had previously updated process nodes with every iPhone since the transition to 3GS before being forced to use TSMC's 16 nm node in consecutive years with the A9 and A10. Moving forward, that annual cadence is again in jeopardy as chip foundries deal with the realities of physics and minimum transistor geometry sizes.

TSMC also unveiled some low power and low leakage processes that are suitable for Apple's other custom designs, such as its line of wireless chips like the W1 and successor W2. TSMC is targeting availability next year of a 22 nm ultra low leakage node, which is suitable for analog and RF designs such as cellular basebands or Wi-Fi chips.

This will ultimately help Apple further lower power consumption on the Apple Watch and headphones featuring the W line of wireless chips. It is also likely to be adopted by Qualcomm for its line of modem products. The W1 and W2 manufacturing processes are not currently publicly known, but it is likely that one of TSMC's RF-focused processes powers the Apple chips.

Finally, TSMC announced a revision of its integrated fan-out packaging process (InFO) that is targeted at integrating high bandwidth memory (HBM) into the assembly, dubbed InFO-MS. HBM has generated a lot of interest from applications where very high sustained memory bandwidths are desired, such as consumer graphics cards.

HBM and similar standards such as Wide I/O promise not only to improve memory bandwidth, but also improve power consumption for a given bandwidth, making it a suitable evolution for mobile SoC designs. This type of memory interface has yet to appear in a mobile design, though it should be considered a near-term eventuality. Despite advances in mobile memory, it still lags behind desktop and laptop systems in total bandwidth, which can be important in some tasks such as graphics rendering.

Apple's new Apple Watch Series 3 models support LTE and UMTS connectivity, but on T-Mobile, LTE connection speeds won't be available. The carrier is limiting the Apple Watch to a maximum speed of 512kb/s, which is more like a 3G connection than an LTE connection.

The speed limitation is noted in T-Mobile's fine print, which says the maximum wearables speed is 512kb/s. It's also noted on the pre-order page when adding an Apple Watch Series 3 to your cart.

At issue is T-Mobile's ONE plan, which limits both tethering and all wearable devices to 512kb/s. While most users are unlikely to be streaming video or doing other tasks that require high connectivity speeds on the Apple Watch, the Apple Watch is also unlikely to be a data hog, so it's unclear why T-Mobile has this limitation in place.

A T-Mobile representative told MacRumors reader Tony that its "High Speed Data with paired DIGITS" plan would provide 4G LTE data. DIGITS is priced at $25 per month without autopay, and $20 per month with Autopay.

No other major carrier in the United States, including Sprint, Verizon, or AT&T appears to be throttling Apple Watch speeds with their standard unlimited plans.

All four of the carriers are charging the same $10 per month fee to add an Apple Watch to an existing iPhone plan, and each one is offering a limited time promotion that waives monthly fees for the first three months.

The LTE Apple Watch Series 3 models became available for pre-order early this morning, with new devices slated to arrive on Friday, September 22, the official launch date for the device.

Update: T-Mobile CEO John Legere says T-Mobile has changed its policy. The company will now offer unlimited 4G LTE on the Apple Watch Series 3.

While the iPhone X launches November 3, with pre-orders beginning October 27, reliable analyst Ming-Chi Kuo believes Apple's high-end smartphone won't achieve complete supply-demand equilibrium until next year.

In his latest research note with KGI Securities, obtained by MacRumors, Kuo said customer demand for the iPhone X won't be fully met until at least the first half of 2018 due to supply constraints.

We believe the fullscreen design and facial recognition features will drive replacement demand for the iPhone X. However, due to supply constraints, we expect market demand won't be fully met before 1H18. We revise down our forecast for 2017F iPhone X shipments from 45-50 million to around 40 million units, but we therefore revise up our 2018 iPhone X shipment estimate to 80-90 million units.

In fewer words, getting an iPhone X in your hands may prove especially challenging this holiday shopping season.

In addition to supply constraints, Kuo said the reason why iPhone X pre-orders won't begin for another six weeks is likely because Apple doesn't want to cannibalize sales of the iPhone 8 and iPhone 8 Plus.

iPhone 8 and iPhone 8 Plus pre-orders began at 12:01 a.m. Pacific Time today. The devices launch Friday, September 22.

Earlier this week, Kuo said Apple's iPhone X production was less than 10,000 units per day, but the yield may be increasing as Apple ramps up mass production. He anticipated the iPhone X will remain in "severe short supply for a while."

Kuo also anticipated that a gold iPhone X would encounter some production problems and initially be available only in "extremely low volume," or launch at a later date, but Apple said the iPhone X comes only in Silver and Space Gray.

In today's research note, he said the lack of a gold color echoes his production concerns, but he didn't elaborate if he still thinks the iPhone X will eventually be released in gold like the iPhone 8 and iPhone 8 Plus.

Shortly after Apple's iPhone X event this week, the company's silicon chief Johny Srouji and marketing chief Phil Schiller sat down for an interview about its new A11 Bionic chip with Mashable's editor-at-large Lance Ulanoff.

One interesting tidbit mentioned was that Apple began exploring and developing the core technologies in the A11 chip at least three years ago, when the iPhone 6 and iPhone 6 Plus launched with A8 chips.

Srouji told me that when Apple architects silicon, they start by looking three years out, which means the A11 Bionic was under development when Apple was shipping the iPhone 6 and its A8 chip. Back then we weren't even talking about AI and machine learning at a mobile level and, yet, Srouji said, "The neural engine embed, it’s a bet we made three years ahead."

Apple's three-year roadmap can change if new features are planned, like the Super Retina HD Display in iPhone X.

"The process is flexible to changes," said Srouji, who’s been with Apple since the first iPhone. If a team comes in with a request that wasn't part of the original plan, "We need to make that happen. We don't say, 'No, let me get back to my road map and, five years later, I'll give you something."

"There have been some critical things in the past few years, where we've asked Johny's team to do something on a different schedule, on a different plan than they had in place for years, and they moved heaven and earth and done it, and it's remarkable to see."

A11 Bionic six-core chip has two performance cores that are 25 percent faster, and four high-efficiency cores that are 70 percent faster, than the A10 chip in iPhone 7 and iPhone 7 Plus. Early benchmarks suggest the A11 Bionic is even on par with the performance of Apple's latest 13-inch MacBook Pro models.

The A11 chip is more efficient at multi-threaded tasks thanks to a second-generation performance controller that is able to access all six of the cores simultaneously if a particular task demands it.

Gaming might use more cores, said Srouji, but something as simple as predictive texting, where the system suggests the next word to type, can tap into the high-performance CPUs, as well.

The A11 chip also has an Apple-designed neural engine that handles facial recognition for Face ID and Animoji, and other machine learning algorithms. The dual-core engine recognizes people, places, and objects, and processes machine learning tasks at up to 600 billion operations per second, according to Apple.

“When you look at applications and software, there are certain algorithms that are better off using a functional programming model,” said Srouji.

This includes the iPhone X’s new face tracking and Face ID as well as the augmented-reality-related object detection. All of them use neural networks, machine learning or deep learning (which is part of machine learning). This kind of neural processing could run on a CPU or, preferably, a GPU. “But for these neural networking kinds of programming models, implementing custom silicon that’s targeted for that application, that will perform the exact same tasks, is much more energy efficient than a graphics engine,” said Srouji.

Apple's new iPhone 8, iPhone 8 Plus, and iPhone X are all equipped with an A11 chip.

In related news, Carnegie Mellon University's School of Computer Science has announced that Srouji will take part in a distinguished industry lecture on Monday, September 18 from 5:00 p.m. to 6:30 p.m. local time.

Full Interview: The Inside Story of the iPhone X 'Brain,' the A11 Bionic Chip

In the upcoming version of Safari 11 on macOS High Sierra, Apple will implement a new "Intelligent Tracking Prevention" feature that builds upon Safari's default blocking of third-party cookies. ITP will greatly limit advertiser reach by placing new safeguards into Safari that use machine learning to suppress cross-site tracking and purge ad retargeting data after 24 hours.

In response, six trade and marketing organizations have written an open letter to Apple asking for the Cupertino company to "rethink" its plan to launch Safari with these new "arbitrary" cookie standards (via AdWeek).

The organizations argue that the Internet's infrastructure depends on consistent standards for cookies, saying that Apple's new ruleset could "sabotage the economic model for the Internet."

On the consumer side of things, the organizations stated that the blocking of cookies in Apple's manner will result in ads that are "more generic" for users, while also being "less timely and useful." The signed organizations include: American Association of Advertising Agencies, American Advertising Federation, Association of National Advertisers, Data & Marketing Association, Interactive Advertising Bureau, and Network Advertising Initiative.

We are deeply concerned about the Safari 11 browser update that Apple plans to release, as it overrides and replaces existing user-controlled cookie preferences with Apple’s own set of opaque and arbitrary standards for cookie handling.

Apple’s unilateral and heavy-handed approach is bad for consumer choice and bad for the ad-supported online content and services consumers love. Blocking cookies in this manner will drive a wedge between brands and their customers, and it will make advertising more generic and less timely and useful. Put simply, machine-driven cookie choices do not represent user choice; they represent browser-manufacturer choice. As organizations devoted to innovation and growth in the consumer economy, we will actively oppose any actions like this by companies that harm consumers by distorting the digital advertising ecosystem and undermining its operations.

On Apple's WebKit site, the company explains that Intelligent Tracking Prevention is meant to ensure user trust is kept during the web browsing experience on Safari, because "the success of the web as a platform relies on user trust." Also coming in Safari on High Sierra is an autoplay blocking feature, which will prevent videos from automatically playing when you open up a web page. This morning, Google announced a similar feature is coming to Chrome in January 2018.

The new Safari will launch when macOS High Sierra becomes available for download on Monday, September 25.

iPhone 8 and iPhone 8 Plus, Apple TV 4K, and Apple Watch Series 3 models became available for pre-order at 12:01 a.m. Pacific Time today, and many of the new products remain available for launch day delivery over five hours later.

iPhone 8 is slated for September 22 delivery in every color and storage size on Verizon, AT&T, and Sprint, for example, while only a few T-Mobile and SIM-free configurations have slipped to up to 3-4 week shipping estimates.

iPhone 8 Plus supplies are slightly more constrained, but even the larger smartphone remains estimated for September 22 delivery in several colors and storage sizes on Verizon, AT&T, and Sprint.

Supplies may vary by model, but based on shipping estimates, demand may be skewing towards T-Mobile or SIM-free models in Space Gray or Gold. Silver and Sprint appear to be least the popular color and carrier respectively at this point.

Quite a few models remain available for launch day delivery in other countries too, such as Australia, Canada, Spain, and Singapore.

Back in the United States, customers can still order an Apple TV 4K with 32GB storage with September 22 delivery. The 64GB model has slipped to a 2-3 week shipping estimate on Apple.com.

Apple Watch Series 3 is the most constrained new product of all. Shipping estimates for many case and band combinations with GPS + Cellular have slipped to up to 4-5 weeks in the United States and elsewhere. Quite a few Wi-Fi and GPS only versions, including some Nike+ models, remain available for launch day delivery.

iPhone X pre-orders begin Friday, October 27.