This is all the (publicly accessible) info the iTunes database has, they are adding a release date field at some point but it's not there yet.
"wrapperType": "track",
"kind": "song",
"artistId": 464296584,
"collectionId": 1655349115,
"trackId": 1655349125,
"artistName": "Lana Del Rey",
"collectionName": "Did you know that there's a tunnel under Ocean Blvd",
"trackName": "A&W",
"collectionCensoredName": "Did you know that there's a tunnel under Ocean Blvd",
"trackCensoredName": "A&W",
"artistViewUrl": "https://music.apple.com/us/artist/lana-del-rey/464296584?uo=4",
"collectionViewUrl": "https://music.apple.com/us/album/a-w/1655349115?i=1655349125&uo=4",
"trackViewUrl": "https://music.apple.com/us/album/a-w/1655349115?i=1655349125&uo=4",
"artworkUrl30": "https://is3-ssl.mzstatic.com/image/thumb/Music113/v4/7c/c4/e5/7cc4e501-6b09-b379-bb54-a40de4615aa3/22UM1IM33313.rgb.jpg/30x30bb.jpg",
"artworkUrl60": "https://is3-ssl.mzstatic.com/image/thumb/Music113/v4/7c/c4/e5/7cc4e501-6b09-b379-bb54-a40de4615aa3/22UM1IM33313.rgb.jpg/60x60bb.jpg",
"artworkUrl100": "https://is3-ssl.mzstatic.com/image/thumb/Music113/v4/7c/c4/e5/7cc4e501-6b09-b379-bb54-a40de4615aa3/22UM1IM33313.rgb.jpg/100x100bb.jpg",
"collectionExplicitness": "explicit",
"trackExplicitness": "explicit",
"discCount": 1,
"discNumber": 1,
"trackCount": 16,
"trackNumber": 4,
"trackTimeMillis": 433916,
"country": "USA",
"currency": "USD",
"primaryGenreName": "Pop",
"contentAdvisoryRating": "Explicit",
"isStreamable": false