Updating Pixel after many months. Will I get all the missing monthly security patches?
Thanks to the chat discussion with Irfan Latif, alecxs and Kulfy the consensus was :

The OTA update should in theory have all previous security patches applied.

Updates are not covered under AOSP documentation and it's left to OEMs discretion. Probably that's why there isn't documentation around this.

Therefore, reach out to Google for a conclusive answer.


I chatted with Google and this person had to take help of technical resource. The chat window is tiny but here is the conclusion


I've checked this with my resources and would like to inform you that once you've updated your device to the latest security patch so it should cover all the security patch features up till date.

Despite my request they couldn't offer any technical insight in terms of documentation or code,which would have been nice but then I got a credible answer!