I've checked that we have all the expected fields for FY 26/27 in CiviCRM. The only one that isn't there compared to previous years is Is FY 2025-2026 donor, but that seems to have been removed from our code, so I assume we don't need it any more (we can easily use a FY total field > 0 for the same result).
For Acoustic, we can add both_funds_usd_total_fy2627 before July 1.