What new features does the open-source code from this article add?

The open-source code, available on GitHub, adds four new features: `AddForward` to add email forwarding, `GetForward` to view forwarding settings, `GetShare` to view folder sharing configurations, and `RemoveForward` to clear forwarding. These expand the functionality of the `Zimbra_SOAP_API_Manage` project and are built on the techniques explained in the [Zimbra SOAP API Development Guide 5 - Email Forwarding](/news/zimbra-soap-api-development-guide-5-email-forwarding) and related guides like [Zimbra SOAP API Development Guide 3 - Email Operations](/news/zimbra-soap-api-development-guide-3-email-operations).