0.9.3 introduces action helpers. As part of this change, the following methods have been removed as they are now encapsulated in the redirector action helper:
setRedirectCode(); useZend_Controller_Action_Helper_Redirector::setCode().setRedirectPrependBase(); useZend_Controller_Action_Helper_Redirector::setPrependBase().setRedirectExit(); useZend_Controller_Action_Helper_Redirector::setExit().
Read the action helpers documentation for more information on how to retrieve and manipulate helper objects, and the redirector helper documentation for more information on setting redirect options (as well as alternate methods for redirecting).