Some of us were aware of the change from, in my case, 60 to 63. For me, though, there was another, later change (the acceleration) from 63 to 66 of which I was unaware. As far as I knew, the first change was the only one which would occur for me. I had no notification of the second change; and why would I expect another one, after the first seismic change to pension entitlements & when I was closer to claiming my pension?
When I did finally claim my pension, I needed to pay to make up one year's NI in order to get a full pension. I had to pay a higher price for it than I would have paid had I known about some special thing which had just run out of time & which I'd never heard of or been informed about. That's how people get rooked by the system. It's easy. It'll probably happen to all of you crowing on here, one way or another. Surely the best way to protect yourselves is to hold governments to account, not to blame each other.
Just today I found a 2021 article on something else affecting women badly vis a vis state pensions. It's a lulu but I'll have to do a bit more research to see how that panned out.