iOS 12.3.1 remains the latest available software update. If you already run it on your iPhone there’s nothing else that you have to do. On the other side if you’re an iPhone 8 Plus owner you should be happy to update to iOS 12.3.2 and enjoy a flawless Portrait Mode experience. Apparently a bug was preventing your device from adding the depth effect when aiming to capture photos with the bokeh feature. All that you have to do is open the Settings app, and perform an usual over-the-air software update!
How To Upgrade To iOS 12.3.2
1. Open the Settings app.
2. Tap on General -> Software Update.
3. Tap Download and Install label.
4. Provide Passcode and agree with Apple’s terms.
Fact: iOS 12.3.2 is 94.5 MB large, if you update an iPhone 8 Plus running iOS 12.3.1.
iOS 12.3.2 Full Update Log
The software update screen pinpoints the fix included in this release. Users are informed that iOS 12.3.2 “resolves an issue that could cause Camera to capture Portrait mode photos without depth effect on some iPhone 8 Plus devices.”