Mr Antonio Rojas of Arch team, announced their decision to stop providing support KDE plasma 4. This decision was after taking the difficulties for maintaining two versions of KDE Plasma into consideration. Also Arch team recommends it's users to upgrade to KDE Plasma 5.x as soon as possible.
From official declaration:
From official declaration:
Since the KDE 4 desktop has been unmaintained for several months and it's becoming increasingly difficult to support two versions of Plasma, we are removing it from our repositories. Plasma 5.5 has just been released and should be stable enough to replace it.
KDE 4 installations will not be automatically upgraded to Plasma 5. However, we recommend all users to upgrade or switch to a maintained alternative as soon as possible, since any future update may break the KDE 4 desktop without prior notice. See the wiki for instructions on how to upgrade to Plasma 5.