Changed way how feed is built: use format_xml_elements() instead of theming
Updated all preprocess functions to be compatible with format_xml_elements() element format
Removed function views_rss_htmlspecialchars() and all calls to it - this is not done automatically by format_xml_elements()
Updated views_rss_rewrite_relative_paths() to handle multiple elements and arrays of subelements
Updated element definitions to account for updated/removed preprocess functions
Added hook_views_rss_feed_alter()
Element values are no longer going through any theme() function
Removed theme callbacks: views_view_views_rss_fields and views_view_views_rss_field
Removed template files: views-view-views-rss-fields.tpl.php and views-view-views-rss-field.tpl.php
Added option for item element to output terms from hierarchical vocabularies together with their parents (and optionally with vocabulary name) as slash-delimited string
Moved core formatters into separate file views_rss_core.field.inc
Added new field handler/RSS field formatter for "All taxonomy terms"
views_rss_core_preprocess_category() no longer used for feed items