= Migration From 0.5 Version To 0.6 Version =

== What's New and/or Changed ==

=== New pjnath Library ===

There is a new {{{pjnath}}} library for NAT traversal helper, containing ICE and new STUN implementation. This library is platform independent, and it depends only on {{{pjlib}}} and {{{pjlib-util}}}.

If the application is based on {{{pjsua-lib}}}, then you will have to add {{{pjnath}}} library to your link process.


=== Win32 IP Helper ===

PJLIB now has {{{ip_helper.h}}} file to enumerate local interface and local routing (needed by ICE).


== Migrating Your Application ==

=== All Applications ===

If your application is based on PJSUA-LIB, you need to add '''PJNATH''' in your input library,

=== All Windows and WinCE Applications ===

What need to change:
 * On Windows and WinCE, the new IP helper abstraction requires application to link with '''IPHLPAPI.LIB'''. Note that IPHLPAPI.LIB is not shipped with Visual Studio 6 so you need to download Platform SDK to get this library. See the section about Visual Studio 6 below.


=== Visual Studio 6 ===

If you're using Visual Studio 6, you need to:
 * download '''Platform SDK''' from MSDN, and 
 * add relevant include and library directory to VS6 options, '''after''' the standard Visual Studio 6 include and library path.

This is required because Iphlpapi.[h|lib] is not shipped with Visual Studio 6.