Each version of Pressflow is API-compatible with the same major Drupal version. For example, Pressflow 6 is compatible with all Drupal 6 modules. Pressflow 6 also integrates the SimpleTest system from Drupal 7 and the CDN support patch.
Simply applying the change from SA-CORE-2014-002 doesn't acctually work on pressflow.
The cause is that function page_get_cache() is different than core, and instead we need to use the pressflow-APi addition drupal_page_is_cacheable() which will make the change more similar to the SA fix for Drupal 7
Simply applying the change from SA-CORE-2014-002 doesn't acctually work on pressflow.
The cause is that function page_get_cache() is different than core, and instead we need to use the pressflow-APi addition drupal_page_is_cacheable() which will make the change more similar to the SA fix for Drupal 7