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The Asterisk development team has released versions 1.6.0-beta2 and and 1.4.18-rc1.

The new beta for 1.6 is available for download from
http://downloads.digium.com/.  The release candidate for 1.4.18 is only
available via svn.  It is available for anyone that would like to help test
1.4.18 over the next couple of days before it gets officially released.

To download the 1.4.18 release candidate:

$ svn co http://svn.digium.com/svn/asterisk/tags/1.4.18 1.4.18-rc1

To make a tarball out of the previous checkout, do:

$ svn export 1.4.18-rc1 asterisk-1.4.18-rc1
$ rm -rf 1.4.18-rc1
$ tar -czvf asterisk-1.4.18-rc1.tar.gz asterisk-1.4.18-rc1/

Please report any issues to http://bugs.digium.com/.

Thank you for your support!