I'm happy to announce a new list for Mailman 3 users and others interested in Mailman 3. This list is running on a new Mailman 3 installation at lists.mailman3.org.
The list's posting address is email@example.com.
The list's info page is https://lists.mailman3.org/mailman3/lists/mailman-users.mailman3.org/ and its archives are at https://firstname.lastname@example.org/.
You can subscribe by email by sending a blank message to email@example.com and responding to the resulting confirmation request. You can also subscribe by going to the info page at https://lists.mailman3.org/mailman3/lists/mailman-users.mailman3.org/, logging in and subscribing.
Log in offers three options. There are Google and Facebook OAuth2 login links on the log in page to log in with a Google or Facebook account, and there is a 'Login by email' link to login via Persona with any address you register and confirm with Persona.
This is a new installation of Mailman 3 so there are still kinks to work out, and any issues can be discussed on the list or reported to the trackers at https://gitlab.com/mailman/postorius/issues, https://gitlab.com/mailman/hyperkitty/issues or https://gitlab.com/mailman/mailman/issues as appropriate.
This is exciting! This will be an excellent way to become familiar with the Mailman v3 subscriber experience. So far the interface looks very clean and intuitive. Our Mailman v2 installation is less than a year old (migrated from ListProc v8), but I am very much looking forward to providing our community a totally modern mailing list platform with Mailman v3.