WP Multi Network was updated to version 1.7.0, from version 1.6.1. Changelog:
- WordPress 4.4 compatibility updates
- Metabox overhaul
- network.zero improvements
- Fix site assignments
- Various UI improvements
- Global, class, function, and method cleanup
This plugin was actually reinstalled, not just updated, because version 1.6.1 caused a fatal error with WordPress 4.4.