We have just seen a huge reduction in our audit log size, dropping from over 380GB to practically 0 across all our environments (prod / non-prod) overnight. This happened on the 12th of this month (January 2025).
The data still appears to be there, as we can see audit history dating back to 2019 when we implemented the system.
Is anyone aware of any recent announcements/changes that Microsoft have implemented that would change how this is either being stored (ie. moved to file storage) or reported on? If the later, does that mean we would still need to "reserve" the additional capacity or is this now significantly reduced that we can also significantly reduce our reservation?