received email for upgrade note:
There are 5 modules available for online upgrades
backup 184.108.40.206 (current: 220.127.116.11)
core 18.104.22.168 (current: 22.214.171.124)
framework 126.96.36.199 (current: 188.8.131.52)
ivr 184.108.40.206 (current: 220.127.116.11)
recordings 18.104.22.168 (current: 22.214.171.124)
Unfortunately server disordered after upgraded.
can’t pick incoming call
can’t make outgoing call
can’t call extensions
voicemail password not working
Fortunately recovered from full system backup.
I also fresh-install an new machine: still debian jessie+freepbx 13, reload failed,
Reload failed because retrieve_conf encountered an error: 1
click here for more info
1 error(s) occurred, you should view the notification log on the dashboard or main screen to check for more details.
Thus, for debian+freepbx users, be careful for above upgrades.