We successfully migrated our mailing lists from mailman2 and pipermail to mailman3 and HyperKitty:

 - https://lists.squeakfoundation.org/mailman3/lists/

 - https://lists.squeakfoundation.org/archives/

Your subscriptions were transferred to the new system so that mail delivery continued to function as expected. To manage mail delivery and other preferences, you can now create an actual account using your mail address. Please do so at your earliest convenience:

 - https://lists.squeakfoundation.org/accounts/signup/?next=/mailman3/lists/

You might want to use a different password as mailman2 stored those in plaintext, which enabled the system to remind you of your current password as a "feature" ... ;-) This is not possible anymore.

Best,

Marcel