C# Linq .Distinct() method not working [duplicate]

Does C# Linq Distinct has stopped working recently? Few months ago it was working like a charm now it is not. For example when I try to do this

Product[] products = { new Product { Name = "apple", Code = 9 }, 
                   new Product { Name = "orange", Code = 4 }, 
                   new Product { Name = "apple", Code = 9 }, 
                   new Product { Name = "lemon", Code = 12 } };

IEnumerable<Product> noduplicates =
products.Distinct();
foreach (var product in noduplicates)
Console.WriteLine(product.Name + " " + product.Code);

This code should produce the following output:
apple 9 
orange 4
lemon 12

But it produces the following output: apple 9 orange 4 apple 9 lemon 12