Team Mambo has released 4.6.4, codename "Sunrise", as a maintenance and security release. Mambo 4.6.4 fixes some serious security vulnerabilities affecting all earlier versions of 4.6. It is recommended that all 4.6+ users update to 4.6.4 as soon as possible.
Instructions for upgrading are included in the release, which you can download from the Mambo Code Forge here.
Please see the Security Forum for details of these security issues.
The full announcement, including Release Notes, is available on The Source. Please ensure that you read the announcement.
Mambo 4.6.4 is released with a known issue that affects some sites running SEF. In some cases, the base href setting is not working correctly. Full details of this (including a temporary workaround) are available in the announcement on The Source. Due to the security issues that were found in all versions of Mambo 4.6 prior to 4.6.4 the team was not prepared to delay the release until this bug could be fixed. The Mambo Team will, however, be fixing the base href issue soon.
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