When you want to work with any android device there are always some questions in back of our mind.
1) Does the OEM provides OS updates
2) Does the OEM provides android security patches
3) How fast do they update the devices.
However so far we have attempted many times but always failed to identify any consolidated list of such data. Hence we decided that its time we build something.
We have created a tracker page which we intent to keep up to date with the help of readers and viewers.
You can contribute to the database via multiple ways
1) Add a comment to this post.
2) Create a pull request with changes on the github page here
3) send us an email at devicesecupdate at androidtamer dot com
4) Create a new issue in https://github.com/AndroidTamer/KnowledgeBase/ Repository and we will update the details.
Note: as this data reveals security posture of devices hence we have made an intentional decision not to credit any individual for specific data. however if you want your name to be credited please specify and we will add the name under credit section on the page.