It appears that many of the imported items from CDBS have already been copied over to LMS. These were the items that were found in CDBS under the "Correspondence Folder". Those that are copied over at the facility level can be found on the LMS Facility Search section. I do notice that the history cards did find their way over. Other documents (such as past decisions, etc.) may have not made it over. Some of those may be available through EDOCS, especially if they were a published decision that made it to the FCC Record. Letters from applicants may have been lost in the transition. Over the years, REC had performed "mass run" projects that would scan each CDBS facility to look for new import letters. The latest item I do immediately see that is in our shop is from June 17, 2022. REC does have a lot of these "import letters" from CDBS in our archives either in converted PDF to text (which sometimes gives wonky results) or the pure PDFs themselves. We simply do not have the online storage space right now to house them all to make them available online. When a project like this comes up on the priority list and a reasonable cloud storage solution can be found, we may be able to publish what we have through the FCCdata.org user interface.
One of the primary goals of the CDBS capture projects was to assure that the history card PDFs were secured after a day when CDBS is shut down, but it does appear that the FCC is attempting to preserve them in LMS.
These mass run projects did NOT capture exhibits from applications. While we did have a small amount of application parsing from CDBS, we did not really get into parsing applications until the development of eLMS a few years ago and that parsing was limited to LMS applications. eLMS does capture the existence of application exhibits and we capture the LMS document IDs for those exhibits so we can link to them on the FCC LMS server. We are not downloading the exhibits themselves.
CDBS era applications, especially those that are still active records have been copied over to LMS, including many of the exhibits. You will have to go into the LMS Application Search to find those.