Updates

Plugin, theme and WordPress core updates over WP-CLI, with a full backup taken first in the same run.

One site

Open the site, Updates tab. Tick what to update — plugins, themes, and optionally core (higher risk; keep it unticked on production unless you mean it). Back up before updating is on by default: a full backup runs first, and if that backup fails, nothing is updated. Press Update…, type UPDATE, and the bar at the top shows progress. Scan site beforehand shows what is pending.

Several sites

On the Sites screen, tick the rows and press Update selected. Every selected site is backed up and then updated, one after another. A site whose backup fails is skipped and named in the result, so no site is updated without a restore point.

What "update" runs

wp plugin update --all, wp theme update --all, and for core wp core update followed by wp core update-db. Output from WP-CLI is in Live Activity.

Requirements

WP-CLI on the server. If a plugin is causing a fatal error, WordPress may not load and updates cannot run; restore or fix the site first.