What happened
Glossia 2.0 introduced mailbox relays, so that messages could wait for people whose phones were off, and the hourly directory signed by independent signers. The upgrade took four hours, during which messages were held.
Incident · Jun 17, 2014
Glossia 2.0 upgrade window
The network moved to relay software 2.0, which introduced mailbox relays and the hourly signed directory.