For help with searching and content:
Most of the new platform (including accessibility features and enhanced support for mobile devices) were fully functional in July 2019.
As of August 2019, some of the features of the brand new platform, including the ability to create individual playlists, were planned but were not yet fully implemented.
Note: in the new platform, subject terms are not uniformly applied across the videos, so the "subject:" search feature does not necessarily retrieve all videos on a topic, and their filtering and grouping features are less comprehensive than in their previous platform. Conducting multiple keyword searches is recommended unless or until more robust tools (consistent keywords or subjects, collections and groupings, or search tools) are in place.