Google has released security update bulletins for April 2021 addressing a number of vulnerabilities in the Pixel line of smartphones, as well as other Android handsets. The vulnerabilities of Pixel smartphones are rated moderate and the Android bulletin ranks the vulnerabilities from high to critical.
The Pixel line of smartphones, which includes the Pixel 3 and later, has gotten further optimizations in camera, connectivity, and system services. A few flagship smartphones from Samsung and Realme running Android have already received the April 2021 security update.
While the April 2021 Android security patch is expected to be rolled out by OEMs according to their schedules, Pixel phones typically receive update notifications on the day they are released. This time around, Google also released a list of optimizations that come with the Pixel security patch. These include the camera, connectivity, performance, system and system user interface optimizations in the Pixel line of smartphones. All global Pixel variants have the version number RQ2A.210405.005, and the Canadian model Google Pixel 3 XL has the version number RQ2A.210405.006.
In the Camera department, Google Pixel 4a (5G) and Pixel 5 have improved the quality of the camera in some third-party apps. Both of these phones also improved the performance of some graphics-intensive games and applications. Regarding connectivity, the update fixes the issue that caused some devices to appear offline when connected to a VPN. This issue has been fixed in Pixel 3 and above smartphones.
The update fixes the Google logo freezing issue when starting up Pixel 4, Pixel 4 XL, Pixel 4a, Pixel 4a (5G), and Pixel 5 smartphones. In addition, there is also a fix for grid settings d missing home in Pixel 3, Pixel 3 XL, Pixel 3a, Pixel 3a XL, Pixel 4, Pixel 4 XL and Pixel 4a. The handsets did not receive custom grid size options.