BE2012 Dedupe- PureDisk version is old 6.5, why?

I had a good amount of exposure with NetBackup with PureDisk nodes at a prior location and am testing BE2012 for a backup refresh project.

 

I happened to notice BE2012 dedupe is running PureDisk 6.5 last night when I was running some commands to check my content router processing and dedupe health. It supprised me to see such a new product, BE2012, running an older version of PureDisk for it's dedupe storage. I believe PureDisk 6.6 was released in 2009... 

I know PureDisk 6.6 includes many deduplication, rehydration, replication, and all over performance improvements.  For example rebaeing.. 

 

Does anyone know if these upcoming service packs will upgrade the intigrated deduplication to PD 6.6? If not when, and why hold back BE to old versions of your deduplication technology?

 

Bart