This upgrade was a bit tough on everyone, but it was a needed upgrade. Anyone could of probably hacked NF with a toothpick given how rarely this place actually updates and possibly rarely applies security fixes at that.
I empathize with those on older devices; I came from that up to an iPhone X and coming from a 1st gen iPad.
Who knows? Maybe Mbxx can find an add-on and provide support for older devices? (doubt).