Does this mean that it won’t be supported on OpenWRT for much longer?
No, they’re really good about supporting old routers for as long as possible. For many years the best router to use with OpenWRT was this one from 2002 - https://en.wikipedia.org/wiki/Linksys_WRT54G_series

















It’s not released yet, this fix will come out with v1.5.
I’m probably going to switch to making smaller releases from now on (one big monster every 4-6 weeks contains too many changes for people to really absorb and understand) so 1.5 might be sooner than you expect.