All similar posts I read did not work.
Version 3.0 can be found through iTunes Connect -> Deliver Your Content then under the heading Additional Resources.
Unless there is something specific you require from version 2.1, I would recommend using the latest version 3.0 from Apple.
Hope the helps.
I am afraid that the path iTunes Connect -> Deliver Your Content is hidden for accounts that distribute content for free or an additional program is required.
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