Update 1 (11/23/2020 @ 06:55 AM ET): Download link added for OnePlus 8 Pro's Open Beta 4 update for the Indian region. Scroll to the bottom for more information. The article as published on November 20, 2020, is preserved below.

OnePlus has begun the rollout of Open Beta 4 of its OxygenOS 11 variant of Android for the OnePlus 8 series. It's not a huge update unlike the previous Open Beta 3, but it does bring the latest Google Security Patches and a host of welcome bug fixes for the system. Security is now up to date to this month's (November 2020) patch, something that many flagship phones can't yet boast. There are 'optimizations' of several features, including in-call stability, system power consumption (which may squeeze a bit more juice out of the battery), the alarm screen UK, and the user experience of apps when working in split-screen.

Fixes to bugs include the issue of dropped frames when pulling down the status bar during gaming, occasional failure of NFC, a frustrating bug that stopped some Play Store downloads from installing, and a fix to the lag issues some were experiencing with MX Player.

The links below are beta releases, so only use them if you're wanting to test the next release early. The stable build already contains all the new functionality including Always-On Display, better one-handed use, and stock Android 11 features like bubble notifications support, Device Controls from the power menu, and a Conversations section in notifications.

OnePlus 8 Forums ||| OnePlus 8 Pro Forums

OxygenOS 11 Open Beta 4 for the OnePlus 8 and OnePlus 8 Pro

Changelog

  • System
    • Optimize the stability of the call
    • Optimized system power consumption
    • Optimized some UI display with Alarms
    • Optimized the user experience with a split-screen of apps
    • Fixed the issue that gaming frame rate decreased when pulling down the status bar
    • Fixed the issue that NFC cannot be turned on in a small probability
    • Fixed the issue that Play Store could not install the app
    • Fixed the lagging issue with MX player
    • Updated Android security patch to 2020.11
  • Network
    • Fixed the low probability automatic disconnection issue with Wi-Fi

Downloads

Thanks to XDA Senior Member Some_Random_Username for the download links!