PCLinuxOS does not often release new ISOs because it is essentially a 'rolling release' so if you have it installed it is a rare occasion when you might need to reinstall.
Even then most users take a 'snapshot' of their running install and save it as an ISO (using mylivecd utility) so it can be used for installation on any hardware in the future. Those installations will then be as up to date as the snapshot.
Anyway there is a June 2017 release of PCLinuxOS featuring KDE Plasma 5 .... notice here ...
Items of note .....
there is no systemd
sudo is not used by default
it is not 'secure boot' compatible (Secure Boot must be off) but is UEFI/GPT compatible.