MantisBT 1.2.6 is maintenance release. This release is a recommended upgrade for all MantisBT users.
The SOAP API has received several important bug fixes and incremental improvements, exposing more of the MantisBT schema attributes.
Multiple fixes and minor improvements have been made to the built-in time tracking/billing feature.
The complete list of issues fixed in this issue is found at http://www.mantisbt.org/bugs/changelog_page.php?version_id=114