FPBX v17 - restore Legacy CDR or not

Hi,
FPBX v17
When doing a restore, what is difference between
‘Run Restore & Legacy CDR’
and
‘Run Restore’?

Thank you,

If your backup includes CDRs from a version of FreePBX that is version 14 or older, you will want to choose the Legacy CDR restore option. The Backup and Restore module was rebuilt in v15 so you would not have to choose that option if the backup is from v15 or newer.

Please refer to the wiki for more details of the options -
https://sangomakb.atlassian.net/wiki/spaces/PG/pages/20807752/Backup+and+Restore+Version+15#Restore

kgupta,
I viewed the attached link. The instructions show ‘Run Restore’ and ‘Go Back’ buttons. It does not show the ‘Run Restore & Legacy CDR’ button. I asked my question because the instructions don’t mention the ‘Run Restore & Legacy CDR’ button does. Maybe the instructions need updated.
Thank you,