INstalling Latest Verison of Kdenlive

Greetings,

did someone installed the latest version of Kdenlive?

I tried this following the site advice and didn't work with trisquel.

For Ubuntu >= 15.04 and other *buntu based distros like LinuxMint you can download latest Kdenlive from our official PPA’s:

sudo add-apt-repository ppa:kdenlive/kdenlive-stable
sudo apt-get update
sudo apt-get install kdenlive

On top of that I couldn't remove the PPA with the instructions given

Note: you can easily remove our PPA and revert back to official distro package using:

sudo ppa-purge ppa:kdenlive/kdenlive-stable

Any suggestions?

Thanks in advance