https://store.steampowered.com/app/1146930/Cities_Skylines__Sunset_Harbor/
More info
All developer diaries can be found right here
All video turotials can be found on our Youtube channel
Patch notes
What's this about a Content Creator Pack?
https://store.steampowered.com/app/1148022/Cities_Skylines__Content_Creator_Pack_Modern_Japan/
You know Ryuichi Kaminogi from the workshop, and now Paradox has teamed up with him to bring you the first Japanese buildings added to Cities: Skylines, bringing ornate models ranging from impressive skyscrapers to cozy udon and ramen shops. Content Creator Pack: Modern Japan includes 20 buildings and 6 props to give your city that unique feel of Japan.
https://steamcommunity.com/id/kaminogi_works/myworkshopfiles/?appid=255710
And there's a new radio station too?
https://store.steampowered.com/app/1196100/Cities_Skylines__Coast_to_Coast_Radio/