* Page URL generation now returns correct URLs for sites that have the main 'serve' view rooted somewhere other than '/'.
* Search results in the page chooser now respect the page_type parameter on PageChooserPanel.
* Rendition filenames are now prevented from going over 60 chars, even with a large focal_point_key.
* Child relations that are defined on a model's superclass (such as the base Page model) are now picked up correctly by the page editing form, page copy operations and the replace_text management command.
* Tags on images and documents are now committed to the search index immediately on saving.
If you have an import in your ``urls.py`` file like ``from wagtail.wagtailsearch import register_signal_handlers``, this must now be changed to ``from wagtail.wagtailsearch.signal_handlers import register_signal_handlers``