I posted this to @news a week ago. Quoting it here as a reminder:

An early heads-up: we are planning a major server upgrade for October 1st, 10pm central time / 3pm GMT. While we hope to limit downtime, Micro.blog will be unavailable for a little while during the upgrade. Your blogs hosted on Micro.blog will remain online.

While we’ve had sporadic downtime this year, I don’t think we’ve had planned downtime in several years, and I don’t take it lightly. It’s a database upgrade and worth the time to do it right.