FOr those who missed the update from matt…
Asterisk 13 is now security fix only and people should migrate to a 16/17
With Asterisk 18 chan_sip is disabled by default. People should work on migrating all sip stuff to pjsip
Roadmap for FreePBX:
Upgrade distro to an EL8 base
FreePBX 16 focus on PHP 7.X support.