For starters, look at the number of reported crashes from the threaded
components of the 3.5.13.x series.  Those reports *cannot* be fixed
without the major threading changes made in TQt3 for R14.0.0.  Just
because something is stable on your system does not mean that it will be
stable on someone else's system if threading is involved. ;-)  Also keep
in mind that R14 finally gets rid of HAL (and in fact uses many modern
services for mounting, network management, etc.)--without those changes,
TDE users would find it increasingly more difficult, if possible at all,
to perform basic tasks like connecting to wireless networks and mounting
USB flash drives.