Maintenance and tuning of all components in the infrastructure for Mastodon.nu, expect intermittent downtime and service disruptions during this time

Upgrade to the latest version of Mastodon, changelog can be found here: https://github.com/mastodon/mastodon/releases/tag/v4.1.1

There will be short intermittent disruptions to all services.

While implementing more logging for troubleshooting delayed notifications we accidentally caused problems with the internal (Puma) webservers, this resulted in the service being down for almost all users.

We didn't expect any of the changes we made to be noticeable for users, we're sorry about this and will announce changes properly going forward.

Short intermittent service disruptions while we upgrade to the latest release of Mastodon.

Full changelog: https://github.com/mastodon/mastodon/releases/tag/v4.1.0

Upgrade and optimisation of the database, may lead to short intermittent interruptions of access to the site.