[Update] 2015-03-20

Manjaro 0.8.12 update-pack 5 now online:

This update brings with it:
KDE Frameworks 5.8.0
mesa 10.5.1
octopi 0.6.0-6
clang 3.6.0
virtualbox 4.3.26
calligra 2.9.1
openssh 6.8p1
openssl 1.0.2.a

As well as all regular Archlinux upstream fixes as of Mar 20. 2015.

Currently supported kernels:
Linux310 3.10.72
Linux312 3.12.38
Linux314 3.14.36
Linux318 3.18.9
Linux319 3.19.2

Before updating, check if you have followed lines in your /etc/pacman.conf file, If not then add them:

# If upgrades are available for these packages they will be asked for first
SyncFirst    = manjaro-system

This update can be performed using octopi or from the command line:

sudo pacman -Syyu

Note: A reboot is required after performing this update

Official Manjaro announcement: https://manjaro.github.io/Update-2015-03-20_(stable)/
Official Manjaro forum feedback thread and poll: https://forum.manjaro.org/index.php?topic=21434.0

Went smoothly for me.