The `MD5` instance created in the `ToMD5Hash` method is not disposed of, potentially leading to a memory leak. https://github.com/stackify/stackify-api-dotnet/blob/57ec215a3a9d701780d7df0e4e31da636e9843f7/Src/StackifyLib/Utils/StringExtensions.cs#L21 **Suggested Fix:** Use a using statement to ensure the MD5 instance is properly disposed.