Listen up, Drupal savvy MailChimp fans. We’ve got some news for you: MailChimp recently rolled out a newer and more robust version of their API - MailChimp API version 3.0! Now I can probably guess what you’re thinking so I’ll just come out and say it: this means MailChimp’s API version 2.0 is about to become deprecated, and we’re not monkeying around.

For those of you using the 8.x and 7.x-4.x branches of the MailChimp module, feel free to sit back and relax - you are already using MailChimp’s API v3.0. Those of of you still using the 7.x-2.x and 7.x-3.x branches, get ready: API v2.0 will be phased out on December 31st, so we encourage you all to upgrade.

Don’t be a furious George - we’ve got you covered. Our documentation up on Drupal.org has been updated, and we’ve provided information that will help make your upgrade experience as seamless as possible. We’ve even included a shiny new FAQ page this go around. For additional support, feel free to post questions on Drupal Answers.

Alright, let’s get down to monkey business. Those of you who upgrade are about to have a module that is regularly maintained, has an improved infrastructure (see the README.txt on the 7.x-4.x branch for more info), and can be integrated with the new MailChimp E-Commerce module (more on that in a future blogpost) - now, that’s something to go bananas for!