May update for the Pixel handsets includes a quarterly update to Android 9
The first week of May is almost over and since it is the beginning of a new month, Google has sent out its monthly update for the three generations of Pixel handsets. According to the Pixel Update Bulletin, there are no security patches sent with the update, but there will be a quarterly update to Android 9 Pie that includes "many functional updates and improvements to various parts of the Android platform and supported Pixel devices."
The Android security update that the Pixels are receiving is dated May 5th, 2019 and the Android Security Bulletin lists 30 vulnerabilities that will be taken care of with the latest security patch. The severity of these were mostly considered to be "high" by Google, although there were a few listed as being "critical."
How many updates you have left for your Pixel model
The update weighs in at 167.1MB, and if you can't wait to receive the notification stating that it has hit your Pixel, you can try to coax it out manually. Go to Settings > System > advanced > Software update. There are two things you should do to your Pixel before starting the updating process; make sure that it is connected to a Wi-Fi signal, and fully charge the battery.
Pixel handsets are receiving a quarterly update to Android 9 Pie