The Asterisk development team has released Asterisk version 1.4.20-rc2.

This release is a release candidate for the upcoming official release of 1.4.20. It includes a fix for a SIP channel driver regression introduced in 1.4.20-rc1, among a number of other changes. For a full list of changes since the last release candidate, view the contents of the ChangeLog that is distributed with
the release.

The release candidate is available on the download site.

http://downloads.digium.com/pub/telephony/asterisk [1]

Please provide release candidate testing feedback to the asterisk-dev mailing list, or the issue tracker, http://bugs.digium.com/.

Thank you for your continued support of Asterisk!