Brand new validation library
We’re announcing a new package today: BeneficialStrategies.Iso20022.FluentValidation, the validation companion to the C# ISO 20022 library. It’s on NuGet now, and it’s up to date with the same June 26, 2026 specification snapshot as the library it validates. Up front: this is a work in progress, not a finished product. It already covers real ground — enough to fully validate two entire business areas — but large parts of the specification aren’t built out yet. We’d rather ship what’s solid and be honest about what isn’t than wait until everything is done. Below is exactly where that line sits today.