Mine too,
My CIC status message in the following sections have been changed as follows
Review of medical results: You do not need a medical exam. We will send you a message if this changes. ( Before: You passed the medical exam)
Review of additional documents: We do not need additional documents.( Before : Your submitted documents being reviewed)
My Background check has been in this status since Dec 2017.
"We are processing your background check. We will send you a message if we need more information."
Is it a good change? I have submitted Federal part in August 2016.