What is new in version 2.1.x
Added information about format support.
New service Deezer. (Closes: LP:1010117, LP:1066300)
Extensions: Almost all extensions are enabled by default.
Notifications extension: Added support for actions and resident notifications. (Closes: LP:968619)
Last.fm extension: Added switches to disable scrobbling for particular services. (Closes: LP:1049474)
Added a few keyboard shortcuts: Go back
Service selector is opened in a separate window and uses native GTK+ widgets instead of web view. GTK+ zoom level is respected and non-free screenshots are not loaded. (Closes: LP:1076137, LP:1076134)
User interface: Added option to prefer dark GTK+ theme.
Context menu of a web view is populated with custom actions.
Removed UI modes "toolbar only" and "both toolbar and menubar". Main menu reorganized.
MPRIS extension: Renamed to Remote Player Interface.
Install Nuvola Player 2.1 on ubuntu
Open the terminal and run the following commands
sudo add-apt-repository ppa:nuvola-player-builders/stable
sudo apt-get update
sudo apt-get install nuvolaplayer