Google already stopped supporting Android 11. Right now, Android 12 is the minimum supported version.

So, it is just a matter of time before banks stop supporting even Android 11.

I have a few advices for you and other people, for your next phone purchase:

1. Before buying new Android phone, do research on which brand has the best Android update policy. Here are the list: http://androidauthority.com/phone-update-policies-1658633/

2. When buying new Android phone, buy the one from brand that has the best Android update policy.

3. When buying new phone, buy the one with the latest OS.

My Samsung Galaxy A73 5G came with Android 12. I had updated it to Android 14. With Samsung's policy, I expect that my phone will get Android 15 or even 16.

http://bankofireland.com/help-centre/faq/m...support-policy/

It seems some overseas banks also follow. Bank Of Ireland's app support minimum Android 11.

Actually, I understand why banks doing this, and accept it

Operating systems that no longer have security update may have vulnerabilities. These vulnerabilities, if unfixed, may pose security issues to apps.

Security for banking apps cannot be compromised.

I always recommend people to update their devices' OS to the latest.