• Fix: Ensure that cached wagtail_site_root_paths structures from older Wagtail versions are invalidated (Sævar Öfjörð Magnússon)
• Fix: Avoid circular import between wagtail.admin.auth and custom user models (Matt Westcott)
• Fix: Prevent error on resolving page URLs when a locale outside of WAGTAIL_CONTENT_LANGUAGES is active (Matt Westcott)