Go_West wrote:
That's so not true, new products leak all the time.
Looks like the feature I'm talking about is already in existence but in true Apple fashion, it's available only in a few countries: 118249 France and Germany are in the EU so they don't even have that excuse..
It is not a new product that has leaked, it is a feature, just like others that rolls out by region and Apple does not usually offer a timeline of when to expect the feature in each region. You can see here that when the feature was first made available in mid May, it launched in Australia and New Zealand.

And was also noted in press releases in the region at that time:
https://www.theverge.com/news/668369/apple-music-transfer-tool-library-playlists
Since then additional regions have been added. If you cannot wait for your region, you can certainly use the standalone SongShift app, which is who Apple partnered with for the feature to be integrated in Apple Music.