Android 16 QPR3 Beta 2.1 rolls out with a focus on reliability and performance
Source: Android Authority

TL;DR
- Android 16 QPR3 Beta 2.1 is now rolling out to enrolled Pixel devices.
- The update primarily focuses on addressing known issues, including fixes for battery drain, stability, and connectivity.
- Pixel 6 and Pixel 7 series receive build CP11.251209.009, while other supported devices receive CP11.251209.009.A1.
Overview
Google has started rolling out Android 16 QPR3 Beta 2.1, a follow‑up to the January QPR3 Beta 2 release. The update aims to improve stability, battery behavior, and overall reliability on Pixel devices. Detailed release notes are available on the Android developer site.
According to Google, Beta 2.1 does not introduce any new app‑impacting API changes. It continues the cleanup work from QPR3 Beta 2, which focused on fixing bugs that could affect day‑to‑day use.
Issues Addressed
- Fixed an issue where the app drawer could become unresponsive when scrolling.
- Stopped Android Auto from incorrectly logging extensive screen time, which impacted battery life.
- Resolved graphical glitches and performance degradation in the notification shade (full‑screen or PiP modes) by improving display rendering.
- Fixed an excessive battery drain issue that occurred overnight when optimizing background process power consumption.
- Corrected a bug where the battery charging limit was ignored, causing devices to charge to 100 % instead of the set limit.
- Fixed slow Wi‑Fi speeds caused by a connection bug.
- Resolved a crash when accessing radio information settings.
- Improved audio routing logic to eliminate delay and lack of feedback when switching to speakerphone during calls.
- Fixed screen flickering when waking the device from Always‑On Display by updating System WebView.
- Fixed crashes on startup for certain apps (including Microsoft applications managed by Intune) due to a compatibility problem.
- Fixed inconsistent or failed wireless charging and slow wired charging by improving the power‑management system.
- Fixed system crashes on foldable devices when folding with an app open by correcting activity‑lifecycle handling during device‑state changes.
Availability
If you’re enrolled in the Android Beta for Pixel program and haven’t opted out, Android 16 QPR3 Beta 2.1 should arrive automatically via an over‑the‑air update.
Early testers on the Android Beta subreddit report that the update is largely under‑the‑hood, with download sizes ranging from 90 MB to 110 MB and few visible changes at first glance. For a deeper look at what to expect, see our previous coverage of the beta’s major changes: Digging into Android 16 QPR3 Beta.