Removed the deprecated OldGetStringBehavior connection option. (WL #16280)

Removed .NET Core 7 and Entity Framework Core 7 support, as they received End of Support status on May 14, 2024. (WL #16386)

Improved how the connection pool releases connections. (Bug #36483069)

The AppendReturningClause method is now overridden to prevent an DatabaseGeneratedOption.Computed attribute annotation from adding an unsupported RETURNING clause to the generated SQL.

Our thanks to Wang Shiyao for the contribution. (Bug #113443, Bug #36116171)