We suggest that all Joomla! users upgrade to this version.

Joomla! 1.0.12 features:

140+ General Bug Fixes
Several low level security fixes
A full security audit of SQL queries
SSL switchover support
Although this release contains several security fixes, as they are of a low level nature, this release is still being characterized as a Stability Release. If you are running a version of Joomla! older than 1.0.11, you should upgrade immediately to at least Joomla! 1.0.11 as that release addressed several important security issues. If you are using Joomla! 1.0.11, we recommend that you upgrade to 1.0.12 as it addresses several long standing bugs and several low level security issues.
Although this release contains several security fixes, as they are of a low level nature, this release is still being characterized as a Stability Release. If you are running a version of Joomla! older than 1.0.11, you should upgrade immediately to at least Joomla! 1.0.11 as that release addressed several important security issues. If you are using Joomla! 1.0.11, we recommend that you upgrade to 1.0.12 as it addresses several long standing bugs and several low level security issues.

Download: http://depositfiles.com/files/495235 or
http://forge.joomla.org/sf/frs/do/viewRelease/projects.joomla/frs.joomla_1_0.1_0_12?_pagenum=3