If you have recently received an "API login() Shutdown Notice" warning email from MailChimp, do not worry - your component already has a fix. The email states:
"Your MailChimp account is using the login() API method which will be disabled in the near future."
In plain English, it's basically saying that you have set up allChimp or allChimpRegister to connect to MailChimp using a Username and Password (an older method), instead of using an API key (a newer method, which our components already have implemented). As the older 'login()' method will be slowed and eventually disabled in January of next year, it is recommended to change your login method to using an API key as soon as possible.
All you have to do is go to your allChimp or allChimpRegister backend, and ensure you are using the Login Type: 'API Key', and not 'Username and Password'.
Simply copy your API key (found here in your MailChimp account), and paste the key into the 'MailChimp API Key' field of allChimp and/or allChimpRegister. If you do not have an API Key field, please update your component.
The next releases of allChimp and allChimpRegister will have the old username/password login method removed. If you have any issues, send us an email. Apologies for any confusion and/or any inconvenience.