Depending on your area, CDRs are several months to several years behind. So don't hold your breath waiting or worrying about when it may be.

They usually request records for about a year prior to the date that they are doing the CDR. This can vary depending in the case.

The CDR review period depends on your condition and age.
6 months to 3 years - medical improvement expected
3 to 5 years - medical improvement possible
5 to 7 years - medical improvement not expected

Not everyone will have a CDR. Those in their mid 50's with a 7 year diary will unlikely ever be reviewed.