- View: security.html -> email_security.html
- Setup: will not install Redis
- Setup: put clamav packages on hold
- Crash recovery: opening firewall ports becomes the last post action
- Crash recovery: group postconf.set_many into small transactions
- Crash recovery: safer postconf.set_master_cf_options
- Separate alias database from system
- Block mail to system users, without backscatter
- Alias management UI for non-admin users
- Enabling/Disabling aliases (mails to /dev/null)
Misc. changes
- Daemon management
- Backup information
- Postconf diagnostics interface
- New class: `MainCfDiagnosis`
- "Advise and repair" mechanism reduces the number of postconf calls
- File locking: lock acquisition moved into audit module
- Enables finer-grained control
- Rewrote action script to eliminate stdin communication
- Changed return type of audit.*.get()
- An audit can return multiple lines of diagnostics
- Move recommended endpoint URLs into function docstrings
