Yes, Nippur: we can update safely. On my System (non the Phinx only, but the second-Phoenix also), all work good, now.
On all my PCLinuxOS installation, Synaptic works good and I haven't problems.
Of course, some packages cannot be installed, in this time, but NOT for "problems": only because -I suppose- they need to be upgraded (due the texlive successful recent updgrade). This is true -for example- for the "texlive-latex" package and some others.
But -and THIS is important- now, we can install safely the Kile package, the LyX package, the texlive package, the TeXmacs package... and all they work very good and without any problem (no-problems by Synatptic, now; no problems on the System).
The PCLinuxOS crews has worked (and is working every day) very very good, to solve all problems, I think.