The development team have announced the release of Joomla! 1.0.11 [ Sunbird ] which is now available for download here. and is  Critical Security Release for your CMS.

All existing Joomla! users MUST UPGRADE to this version, due to several High Level vulnerabilities that affect ALL Previous versions of Joomla! 

1.0.11 contains the following security fixes:

• 04 High Level Security Fixes
• 04 Medium Level Security Fixes
• 18 Low Level security
  
• 25 General bug fixes

For more information and to download the latest stable release please use the link below.

• 1.0.11 Download
• 1.0.11 Version Information
• 1.0.11 Changelog
  
• 1.0.11 Package File MD5 checksums