Manjaro Summit is a semi-immutable distribution with an atomic update system. Updates are carried out as pre-made disk images. Manjaro Summit makes use of Arkane Linux's Arkdep immutability tools.
Some elements of Manjaro Summit are yet to be decided such as whether it will evolve into a stable rolling workstation distribution or an always-moving distribution. Right now only the GNOME desktop is supported by Manjaro Summit while KDE Plasma / Xfce / COSMIC are untested yet.
Those wishing to try out Manjaro Summit or learn more about this atomically updated distribution flavor can do so via Manjaro.org .