New features and bug fixes for v2.1.0 Features: - Flexible e-mail preferences: Users can select different e-mail addresses for password reset and the services they have access to. - New remailer address format: The old format was case-sensitive which caused problems with some services. The new format is case-insensitive and generally more robust. The old format is still supported. - New service setting to make testing remailer easier (extends/replaces REMAILER_LIMIT_TO_USERS). - Admins can now deactivate user accounts. - Prometheus metrics: If the required dependencies are installed, an experimental metrics endpoint is available. - Unique user e-mail addresses: If enabled, uffd enforces e-mail address uniqueness. Can be enabled/disabled with "uffd-admin unique-email-addresses". Bug fixes: - MariaDB support: In older versions MariaDB support was broken. Starting with this release MariaDB support is CI tested. - New UID/GID allocation approach prevents UID/GID reuse