Please stabilize gnome-extra/evolution-exchange-2.12.3 - it appears to have only translation updates on top of the currently stable 2.12.0. Additionally 2.12.2 was in the tree for quite a while already till I replaced it with 2.12.3, as it had only one translation update (pt_BR) on top of 2.12.2.
x86 stable
sparc stable
ppc stable
@amd64, pingy
Closing this as I'll be filing a newer versions stabilization request in a moment.