What do we use for Lollipop? It sounds as if Android abandoned Adobe rather than vice versa. Why would they do that?
Actually it was Adobe who abandoned all mobile OS support for Flash, and in fact they abandoned desktop Linux as well.
Adobe now only supports and updates Flash for Windows and Mac OS X, and that's it. Many sites these days have moved away from Flash anyway, and I'm sure Apple iOS had something to do with it,
because that's never supported Flash, which probably generated a lot of howling from iPad and iPhone users about websites not working.
There is Puffin Browser you can use, that runs the latest Flash on their servers, rather than the mobile device itself.
I think what broke the discontinued Flash 11 version for Android was the change from Dalvik to ART in Lollipop.
It's just not safe at all to use old out of date versions of Flash anyway, and in fact some browsers on PCs, like Firefox will block it as well, if the installed Flash version is not current.
From what I've seen, especially on Chinese sites,
one of the main uses for Flash is for showing ads. obnoxious intrusive video ones that play sound. So its absence is really a benefit to everyone IMO.