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