This has been added in 2.2.

There's a caveat which is that the release year information is not populated automatically on iOS. I've added a Shortcut for it which can be found in 2.2.1 in Settings > Siri & Shortcuts > "Populate Release Years". You can set/overwrite the year manually via long-tap on Album > Get Info. And it also syncs from the Mac app (currently in Early Access).

Coming in Longplay 2.2