UPGRADE.txt

===========================================================
===
=== Information for upgrading between Asterisk versions
===
=== These files document all the changes that MUST be taken
=== into account when upgrading between the Asterisk
=== versions listed below. These changes may require that
=== you modify your configuration files, dialplan or (in
=== some cases) source code if you have your own Asterisk
=== modules or patches. These files also include advance
=== notice of any functionality that has been marked as
=== 'deprecated' and may be removed in a future release,
=== along with the suggested replacement functionality.
===
=== UPGRADE-1.2.txt -- Upgrade info for 1.0 to 1.2
=== UPGRADE-1.4.txt -- Upgrade info for 1.2 to 1.4
=== UPGRADE-1.6.txt -- Upgrade info for 1.4 to 1.6
=== UPGRADE-1.8.txt -- Upgrade info for 1.6 to 1.8
=== UPGRADE-10.txt  -- Upgrade info for 1.8 to 10
=== UPGRADE-11.txt  -- Upgrade info for 10 to 11
=== UPGRADE-12.txt  -- Upgrade info for 11 to 12
=== UPGRADE-13.txt  -- Upgrade info for 12 to 13
=== UPGRADE-14.txt  -- Upgrade info for 13 to 14
=== UPGRADE-15.txt  -- Upgrade info for 14 to 15
===========================================================

New in 16.0.0:

app_fax:
 - The app_fax module is now deprecated, users should migrate to the
   replacement module res_fax.

app_macro:
 - The app_macro module is now deprecated and by default it is no longer
   built.  Users should migrate to app_stack (Gosub).  A warning is logged
   the first time any Macro is used.

AMI:
 - The ContactStatus and Status fields for the manager events ContactStatus
   and ContactStatusDetail are now set to "NonQualified" when a contact exists
   but has not been qualified.

ARI:
 - The ContactInfo event's contact_status field is now set to "NonQualified"
   when a contact exists but has not been qualified.

Build System:
 - MALLOC_DEBUG no longer has an effect on Asterisk's ABI.  Asterisk built
   with MALLOC_DEBUG can now successfully load binary modules built without
   MALLOC_DEBUG and vice versa.  Third-party pre-compiled modules no longer
   need to have a special build with it enabled.

cdr_syslog:
 - The cdr_syslog module is now deprecated and by default it is no longer
   built.

res_config_sqlite:
 - The res_config_sqlite module is now deprecated, users should migrate to the
   replacement module res_config_sqlite3.

res_monitor:
 - The res_monitor module is now deprecated, users should migrate to the
   replacement module app_mixmonitor.

Core:
 - libedit is no longer available as an embedded library and must be provided
   by the system.