This files describes API changes in /theme/* themes, information provided here is intended especially for theme designer. === 2.2 === required changes: * use new page content placeholder "echo $OUTPUT->main_content()" instead of "echo core_renderer::MAIN_CONTENT_TOKEN" see git commit: 3b3f302855d7621405a8b93e49bd399d67a998d7 * upgrade report selectors: search for "-course-report-" and replace with "-report-"