Couchbase Fulltext Search (FTS) has introduced two new features: Type Mapping and Sort. Type Mapping allows for multiple ways to distinguish document types, including using a common field as a type selector or specifying a regular expression that matches the type identifier. This enables more flexible and advanced filtering capabilities. The new Sort feature enables custom sorting of search results by specifying fields in a sort array, allowing for more control over the order of results. Additionally, FTS has changed its backend to use Moss, a simple and fast key-value storage library for Go, providing improved performance and features such as atomic mutations and concurrent readers/writers. These updates enhance the capabilities and flexibility of Couchbase FTS, making it easier to build robust search applications.