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-rw-r--r--UPGRADE.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/UPGRADE.txt b/UPGRADE.txt
index bb93234a5..c08ac09bf 100644
--- a/UPGRADE.txt
+++ b/UPGRADE.txt
@@ -1,6 +1,14 @@
Information for Upgrading From Previous Asterisk Releases
=========================================================
+IAX2:
+
+* There have been some changed to the IAX2 protocol to address the security
+ concerns documented in the security advisory AST-2009-006. Please see the
+ IAX2 security document, doc/IAX2-security.pdf, for information regarding
+ backwards compatibility with versions of Asterisk that do not contain these
+ changes to IAX2.
+
Compiling:
* The Asterisk 1.2 source code now uses C language features