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===========================================================
===
=== Information for upgrading between Asterisk 1.6 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 includes 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
===
===========================================================
From 1.6.0.10 to 1.6.0.11:
* Beginning with this release, Asterisk's internal methods of
negotiating T.38 (FAX over IP) sessions changed in
non-backwards-compatible ways. Any applications that previously used
AST_CONTROL_T38 control frames will have to be upgraded to use
AST_CONTROL_T38_PARAMETERS control frames instead; app_fax.c is a good
example of how to generate and respond to these frames. These changes
were made to solve significant T.38 interoperability problems between
Asterisk and various SIP/T.38 endpoints identified by many users of
Asterisk.
From 1.6.0.9 to 1.6.0.10:
* Support for Taiwanese was incorrectly supported with the "tw" language code.
In reality, the "tw" language code is reserved for the Twi language, native
to Ghana. If you were previously using the "tw" language code, you should
switch to using either "zh" (for Mandarin Chinese) or "zh_TW" for Taiwan
specific localizations. Additionally, "mx" should be changed to "es_MX",
Georgian was incorrectly specified as "ge" but should be "ka", and Czech is
"cs", not "cz".
From 1.6.0.1 to 1.6.0.2:
* The ast_agi_register_multiple() and ast_agi_unregister_multiple()
API calls were added in 1.6.0, so that modules that provide multiple
AGI commands could register/unregister them all with a single
step. However, these API calls were not implemented properly, and did
not allow the caller to know whether registration or unregistration
succeeded or failed. They have been redefined to now return success
or failure, but this means any code using these functions will need
be recompiled after upgrading to a version of Asterisk containing
these changes. In addition, the source code using these functions
should be reviewed to ensure it can properly react to failure
of registration or unregistration of its API commands.
* The ast_agi_fdprintf() API call has been renamed to ast_agi_send()
to better match what it really does, and the argument order has been
changed to be consistent with other API calls that perform similar
operations.
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