Top Producer is in the process of transitioning from 8i to X. Top Producer 8i is based upon obsolete technology. Portions of 8i functionality have been discontinued due to Top Producer no longer being able to technologically maintain that functionality. Top Producer X uses newer technology, but lacks many key features that exist in 8i. This means that to use Top Producer, real estate agents need to use both 8i and X to gain full functionality. Top Producer does not intend to discontinue 8i completely, but instead will discontinue specific 8i functionality over time.