Additional SQL Server features and topics not covered by specific categories
Unfortunately, it doesn’t look like SQL Server 2025 is supported for Command Centre 8.40 or 8.90. Both versions were released well before SQL Server 2025.
If SQL Server 2025 is the goal, I’d suggest upgrading to 9.50 first and then confirming compatibility with Gallagher or your integrator, since their compatibility matrix is only available through the partner portal.