IOS 13
iOS 13 is the thirteenth major release of the iOS mobile operating system developed by Apple Inc. for its iPhone, iPod Touch, and Home Pod lines. The successor to iOS 12 on those devices, it was announced at the company's Worldwide Developers Conference (WWDC) on June 3, 2019, before being released on September 19, 2019. The current release is 13.5.1.
As of iOS 13, the iPad lines run a separate operating system, derived from iOS, named iPadOS. Both iPadOS 13 and iOS 13 dropped support for devices with less than 2 GB of RAM. iOS 13 received positive reviews.
Introduction and initial release
iOS 13 and iPadOS 13 were introduced by software engineering director Craig Federighi at the WWDC keynote address on June 3, 2019.
The first beta was made available to registered developers after the keynote. The second beta was released to registered developers on June 18, 2019, and the first public beta was released on June 24, 2019. The initial release of iOS 13 was version 13.0, which was released to the public on September 19, 2019.
System features
Privacy
iOS 13 changes the handling of location data. When an app requests access to a location, the user chooses whether to grant access whenever they are using the app, never, or only once. The user will receive similar prompts for background location access, and when an app requests access to Bluetooth or Wi-Fi (which may also be used for non-consensual location tracking).
In August 2019, it was reported that beginning in April 2020, the PushKit API for VoIP would be restricted to internet telephone usage, closing a "loophole" that had been used by other apps for background data collection.
User interface
A system-wide dark mode allows users to enable a light-on-dark color scheme for the entire iOS and iPadOS user interface, all native applications and supported third-party apps. It can be manually turned on or set to automatically switch between light and dark modes based on the time of day.
The volume indicator was redesigned, replacing the larger, centered overlay with a slimmer bar shown vertically near the volume keys in portrait orientation, or at the top in the landscape. The bar can also be manipulated directly.
Performance
iOS 13 contains several performance improvements. Face ID unlocks the iPhone X, XS / XS Max, and XR up to 30% faster than on iOS 12. A new file format makes app downloads as much as 50% smaller, app updates as much as 60% smaller, and app launches up to 2x as fast.
Battery lifespan extender
Similar to many laptops, iOS 13 has a feature to limit the battery charging percentage to 80%.
Keeping the battery percentage more centered instead of complete charges and discharges reduces strain onto the battery. This reduces the battery aging of the lithium-ion battery and extends its lifespan.
Haptics
iOS 13 introduced a new Core Haptics framework. Prior to iOS 13, apps could only provide the default haptic patterns. Core Haptics gives developers more fine-grained control over the iPhone's Taptic Engine, including synchronized audio, allowing apps to provide customized haptic and audio feedback. This feature is only available on iPhone 8 or newer. It is also not supported on the iPod Touch due to the lack of a haptic motor in those devices.
External storage
iOS 13 introduced the ability to connect to external USB drives. Although primarily designed for thumb drives and hard drives, a wide variety of USB disk devices will work, thanks to the iOS's support of the SCSI subclass of USB Mass Storage. Native SCSI disk devices will work as well, when used with a SCSI to USB adapter.
Problems
There were a number of issues following iOS 13's release, some relating to battery drain, call-dropping, and ringtones not functioning properly, resulting in frequent software updates and patches. Despite the frequency of bug fix releases, the updates have introduced new issues.
Other issues included incorrect artwork for user's playlists. Users reported the artwork is repeated for some playlists or uses a different picture.
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