Coming to the changelog, it is pretty much the same as the previous OxygenOS 4.1.1 update. The only additional thing in the OxygenOS 4.1.3 is system stability improvements. Nevertheless, OnePlus may have added some undisclosed fixes into the latest update package.
Below is the official changelog of OxygenOS 4.1.3 Update for OnePlus 3 and 3T:
Upgraded Android 7.1.1Added expanded screenshotsImproved picture taking of moving objects with blur reductionImproved video stability when recordingImproved Wi-Fi connectivityImproved Bluetooth connectivityFixed Instagram swiping bugFixed hardware buttons malfunction bugIncreased system stabilityGeneral bug fixes
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As with every OxygenOS update, this one is also being rolled out incrementally. This means, only a handful of users will receive it in first one or two days. After that, the update will be pushed to other OnePlus 3 and 3T owners. Needless to say, the OxygenOS 4.1.3 is an OTA (Over The Air) update. Thus, the installation is automatic and hassle free. Your phone can download and install the update on its own if ‘auto-update’ is turned on. Otherwise, you need to go to the update section of the settings and manually start the updating procedure. Speaking of the download size, it is only 30 MB for the ones who are already running OxygenOS 4.1.1 on their devices.
