Just after a month of testing, iOS 12.1.3 has been released for iPhones. Just like the previous iOS 12.1.2 update, there's not much to get excited about. There are no new features so far, but there are some fixes for problems with photos in messages, imperfect images when using the sub-archive, and disconnecting CarPlay.
To download iOS 12.1.3 on your iPhone, open Settings, tap "General", then "Software Update" and follow the on-screen instructions to install the latest update. If you have "Automatic Updates" enabled, you can skip the manual update and just wait until IOS installs the update automatically.
Here are the main fixes in Apple's editions:
- Solve a problem in messages that can affect scrolling through images in detail view
- Addresses a problem where images can have striped artifacts after being sent from the share sheet
- Solve a problem that can cause audio distortion when using external audio input devices on iPad Pro (2018)
- ] Solves an issue that may cause some CarPlay systems to disconnect from iPhone X R iPhone X S and iPhone X S  Max
There are also some corrections for those who own HomePods:
- Fixes a problem that can cause HomePod to restart
- Addresses a problem that can get Siri to stop listening
So far, there are no patched security issues to mention.  Buy Apple HomePods at Apple | Best Buy | Walmart
During the course of iOS 12.1.3 beta, Apple also solved other issues not listed in the official release notes. But there is no reason to believe that these problems are not solved in the final version either.
The only beta version resolved for iPhones that would also be in the stable version is an action for inaccessible interface elements when VoiceOver is used in the "Electrocardiogram (ECG)" section and "Irregular heart rhythm" in the Health app (Health Data -> Heart) .
With iOS 12.1.3 finally, we expect Apple to provide the latest beta software at any time. Whether this software will be iOS 12.1.4 or iOS 12.2 remains to be seen.