Parasound Integrated Parts Change

Just saw on the Parasound Integrated Availability Update site that they have "elected to make a parts change"

Does anyone know what the issue is/was. I don't think I've ever seen Parasound pause production mid-introduction of any of their models.

Lots of v2, v3 after a model has been out for a while but this surprised me. Still have the Integrated as the best affordable one-box-solution on my list.
HT: Marantz NR-1603, Oppo 981, Def Tech SM55, SVS PB-1000
BR: iPad Mini, Audio Engine A5+
2C: Parasound ZDAC V.2, Sony DA80ES, Sony XDR-F1HD, SVS Prime Tower, JSE .6 Infinite Slope
Office: MBAir, Focusrite Scarlett 2i2, JBL LSR-308
Projects: Polk RTA12, Polk Monitor 7, Revox B225CD, BIC 3-TM