Operating systems must be supported by the vendor which means regular security updates must be provided in order to fix security issues.
Whilst every effort is made to provide the most up-to-date information, you should always check the vendor site for the support status of your particular operating system.
The below will appear on the Refined page at Android
Vendor : VariousOperating system name : Android
Version/Edition : 13, 12, 12L, 11
Android phones are made by a large number of companies, but the operating system is common to all of them.
Supported versions are: 13, 12 and 12L, 11
Update policy : Security bulletins usually appear on the first Monday of each month at https://source.android.com/docs/security/bulletin
Bulletins are shown in the list at the left of the bulletin page ordered by date.
How to check your version :
To check if an update is available:
Open your device's Settings app. Tap Security & privacy>Updates.
The device will display the update status and the security patch level (shown as the corresponding date, e.g. 2023-06-01 is 1st June 2023).
End of Security Updates : TBC
This date is based on available information and may be subject to change. Always check the vendor site for the most up to date information.
Vendor information:
https://source.android.com/docs/security/bulletin