New feature in v4.8: Limit list to X minutes, hours or titles

The result list can now be cropped to just X minutes or hours, or just to X titles. But which titles should SmartPlaylist take? That's up to you: You can specify "selected by" =
"random",
"highest rating", "lowest rating",
"highest play count", "lowest play count"
"most recently played", "least recently played",
"most recently released", "least recently released",
"longest duration", "shortest duration",
"highest track #" or "lowest track #"