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A new smartphone again? Rethink unhealthy culture of frequent upgrades
(www.straitstimes.com)
This is a most excellent place for technology news and articles.
He could be using a ROM with up to date security patches, I believe some phones from that era still have active custom ROM communities.
You're correct, I'm running Lineage Os 18 (android 11)
I was considering that, seems unlikely to me, though.
Hell you can run Android 11 on a Galaxy S2.