Acquia Drupal 1.2.57 (Drupal 6.30 core from Pressflow) contains the following updates:

Security updates
* Updated the FileField module to 6.x-3.12 (https://drupal.org/node/2194103). This also fixes an access bypass security issue described in DRUPAL-SA-CONTRIB-2014-015 (https://drupal.org/node/2194639).
* Updated the Tagadelic module to 6.x-1.5 (https://drupal.org/node/2188887). This also fixes a cross site scripting security issue described in DRUPAL-SA-CONTRIB-2014-018 (https://drupal.org/node/2194671).
* Updated the Webform module to 6.x-3.20 (https://drupal.org/node/2194181). This also fixes a Information disclosure security issue described in DRUPAL-SA-CONTRIB-2014-009 (https://drupal.org/node/2187453).