regarding the update notification plugin here is a feature suggestion

I don't know if this headline caught your eyes, but it did definitely catch mine: http://w-shadow.com/blog/2010/09/02/automatic-updates-for-any-plugin/

This plugin enables automatic upgrades of privately hosted plugins which would enable automatic upgrades of the WPMUDEV plugins!

Besides, you could come up with a plugin that offers automatic upgrades of plugins located inside mu-plugins :slight_smile: