More DACS problems

Last week Sprint filed a FCC outage report about a DACS failure during a software upgrade. What is up with the DACS vendors. There seems to continuing problems when telco's upgrade the software on their DACS equipment. Since telcos have created a design with DACS as a single point of failure, these outages have a big impact on non-switched services such as data lines. Has anyone heard what, if anything, the telcos and DACS vendors are doing to solve these software upgrade problems on their DACS equipment?