If a port has an active maintainer please talk to them before doing work on it. I already have a diff for this update but zathura wasn't ready (mupdf breaks API pretty much every update).
> -@@ -1503,7 +1514,7 @@ void pdfapp_onkey(pdfapp_t *app, int c, int modifiers)
> - {
> - if (app->imgw + app->panx <= app->winw)
> - {
> -- if (app->pageno + 1 < app->pagecount)
> -+ if (app->pageno < app->pagecount)
This one shouldn't be removed completely, it moves down a bit.
