Meaning of 25D update - "Accrual Processing for End Dated Enrollments"?

Summary:

I wanted to understand the meaning of the 25D feature - 'Accrual Processing for End Dated Enrollments'

The release note only talks about transfer and rollover cases in cases of Retro HR events. For my clients, there is no transfer to another plan or rollover to another plan once the eligibility is lost. Instead there are other plans that are in place so that the employee enrolls into these other plan once the old eligibility is lost and there is a new eligibility criteria fulfilled.

What I am trying to understand is this based on the current functionality:

Example scenario: Employee is falling into eligibility profile A and is enrolled into plan AA. There is a back dated transaction from Sep-1-25 such that employee loses eligibility A and falls into eligibility B and therefore is expected to be enrolled into plan BB