The Asterisk Development Team is pleased to announce the fourth release candidate of Asterisk 1.6.1.0. Asterisk 1.6.1.0-rc4 is available for immediate download at http://downloads.digium.com/pub/asterisk/ This release candidate improves the performance of the ast_event cache functionality, fixes issues with rwlock corruption that would cause deadlock like symptoms, fix queue weight behavior so that calls in low-weight queues are not inappropriately blocked, resolves an issue with dropped calls due to SIP re-INVITE 'glare', fixes the ability to retrieve voicemail messages from IMAP, and several other minor issues. This release also includes the change in the AST-2009-003 security advisory, which can be read at http://downloads.digium.com/pub/security/AST-2009-003.html For a full list of changes in this release candidate, please see the ChangeLog: http://svn.digium.com/svn/asterisk/tags/1.6.1.0-rc4/ChangeLog Issues found in this release candidate can be reported at http://bugs.digium.com Thank you for your continued support of Asterisk!