I haven't found any app in Warehouse that didn't work, every app that I use from Warehouse (quite a lot, TBH) still work correctly on 1.1.4.24 on my Jolla Phone. And a lot of patches still work too.

Haven't updated to 1.1.4.28 though so can't say anything about that yet.

(oh and btw: I'm an everyday user who likes early access to software versions, I'm no dev or anything)