The latest release of Redis 5.0 introduces a new data structure called Streams, which allows storing multiple fields and string values with an automatic time-based sequence at a single key, resembling lists, hashes, sorted sets, and pub/sub patterns. This enables real-time reactions to the stream through consumer groups that allow various clients to consume a stream with their own position, making it suitable for tasks like event sourcing or unified log architecture. The release also includes new commands for sorting sets, such as removing the highest- or lowest-scoring member, as well as refinements to existing internals and a new LOLWUT command for testing purposes.