Emby Server 4.5.3 is currently rolling out. Here are the highlights.
New Search Experience
New search for mobile and desktop layouts. Improvements over previous search:
There's now a Top Results section which provides a truly global search, something we didn't have before
You can see all the different types of items that matched the search, and filter by type
The type categories are now ordered by search relevance, whereas previously they were just hard-coded