This special release of Spread.NET Windows Forms fixes an issue with using the Spread Designer in design-time in Visual Studio when working with projects which target the older Framework versions (.NET 4.6.2+). Projects which target .NET 5 or .NET 6 are not affected by this issue. If you have experienced issues opening the Spread Designer tool from design-time, get this update and update your project references to use this new release. This release is also available on nuget.org: GrapeCity.Spread.WinForms & GrapeCity.Spread.WinForms.Design.
NOTE: This issue only affects the Windows Forms controls, so there is no update to the ASP.NET or WPF controls. For release notes, please see here.