Why no more updates for MacBook Air at 10.3.6 intel core i5
Why have no updates been available for my MacBook Air for a long time? Bought in 2012, intel core i5, currently at 10.3.6. Specifically, my bank website says that Safari is out of date (12.0.3) and no longer secure. I plan on using Firefox instead, assuming that I can update to a secure version of that. Thanks for any info!
MacBook Air 13", macOS 10.13