Is it ok to have 5 years calendar for references?
Release : 12.1
If you want to keep the old calendars, that is fine. Any calendars older than 2021 can be deleted, but there is no issue with retaining or deleting calendars older than 2021. CA 7 will never use these calendars again. Also, there shouldn't be any problem with CA 7 functioning because any calendars prior to July of 2022 will never be referenced.