From the security bulletin I can know that which version of Android is not being supported by Android anymore.
For example I can tell that Android version 7.1.1 and 7.2.1 are not being supported around 4th Nov 2019, by referring to the 4th Nov 2019 bulletin.
Questions:
1) Are there any ways to get the precise dates when Android 7.1.1 or 7.2.1 are deprecated?
2) Or are there any official announcement to get the date for Android 8.0 or 8.1 being deprecated beforehand? So we can plan accordingly to stop supporting that version for security reasons.
3) In wikipedia, old versions means it's unmaintained. But how to get this information from the official docs?
Only security patches aren't provided any more
- that is IMHO the common definition of a phased out OS. Just compare it with Windows XP which support has officially been dropped. That app developers still support older Android levels is something that is independent of the OS itself. – Robert May 23 '20 at 11:20