This will be the last major and minor version to support Python 2.7 (#1253) and Python 3.5.
The next non-patch release should be version 4.0.0.

New Features / Improvements

• Add API.search_30_day and API.search_full_archive (#1175, #1294)
• Update allowed parameters for API.home_timeline (#1410, #1458)
  • Add trim_user, exclude_replies, include_entities
  • Remove page as erroneously documented parameter
  • Reorder count to be the first parameter
• Update allowed parameters for API.get_oembed
  • Add hide_thread, theme, link_color, widget_type, dnt
  • Remove id
• Remove API.update_profile_background_image (#1466)
• Add support for Python 3.9
• Switch from Travis CI to GitHub Actions to run tests and deploy releases (#1402)
• Update and improve various documentation

Bug Fixes

• Use mimetypes.guess_type as fallback for determining image file type (#1411)
• Use proper MIME type in Content-Type header for uploaded images
• Allow file parameter to be used again for API.media_upload (#1412, #1413)
• Allow file parameter to be used again for API.update_profile_banner, API.update_profile_image, and API.update_with_media (#1475)
• Fix User.lists, User.lists_memberships, and User.lists_subscriptions to retrieve information about the user in question rather than the authenticating user (#1443, #1444)