As of August, Google is no longer listed as supporting the Pixel 5a with either major OS upgrades or monthly/quarterly security updates. The phone has essentially reached the end of the road in terms of updates,

Google is rolling out a minor new update for the Pixel 5a, three months after its software support ends. The update includes various fixes related to adaptive brightness, Bluetooth routing, and media player notification. Google has a history of releasing minor bug-fixing updates for Pixel devices a few months after they reach their end of life.

The Google Pixel 5a has reached end of life and is now getting its final update after a beautiful long run of over 3 years.

Google is reportedly pushing out a minor new software update to the Pixel 5a, which has already reached end-of-life.

For Pixel 5a fans, the end seemingly came this month. Google launched the device back in August of 2021, and said it would offer three years of software support for it, so August 2024's security patch for the Pixel 5a should have been the last update for the device.