You can easily install this version if you use Anaconda by closing Spyder and then running the following commands in a system terminal (Anaconda Prompt on Windows,xtermon Linux orTerminal.appon macOS):
conda update qt pyqt
conda install -c spyder-ide spyder=4.0.0b4
Or you can use pip with this command in a system terminal (cmd.exeon Windows,xtermon Linux orTerminal.appon macOS):
pip install --pre -U spyder
Note:Do notuse this command if you are using Anaconda because it could break your installation.