On Monday, February 18, we’re launching MailChimp v8. Now, eight is pretty significant as far as version numbers go, so we figured we better give our customers a pretty big feature to match: multi-user accounts (yes, finally). This means you’ll be able to set up a MailChimp account as an “Admin,” then grant permission to “Authors” who are allowed to design templates and create campaigns, or invite people in your organizations who can only view reports, and so on.
This upgrade made us change a lot of code in a lot of places, and is forcing us to kill a feature you may be using right now (Account Keys), so we should discuss v8 in detail.