* Fixes a bug that would cause affs to be mandatory for corrections and retractions.
2.3.4
* Fixes support for SciELO PS 1.8.
2.3.3
* Fixes support for SciELO PS 1.8 adding validations to affs and ref-lists.
2.3.2
* Makes the validation of the response element more flexible. * Adds more values to ``//product/product-type``. * Adds more values to ``//date/date-type``. * Adds SciELO BR specific rules.
2.3.1
* Fixes a bug that would cause error messages on all sps-1.8 documents.