For those sticking to Ubuntu Tweak for cleaning system caches, the 0.8.8 release is still available for install in Ubuntu 16.10 via a third-party PPA.
Ubuntu Tweak is simple tool for configuring Ubuntu Desktop settings, it is no longer under maintenance since May 2016. The last release is Ubuntu Tweak 0.8.8, and it’s still available in third party repositories for Ubuntu 16.04 and Ubuntu 16.10.
Install Ubuntu Tweak in Ubuntu 16.10:
While Ubuntu Tweak is stuck at version 0.8.8, there’s no future updates, so download the .deb directly from the PPA link below:
Click expand the Yakkety packages and download the “ubuntu-tweak-0.8.8-5~yakkety_all.deb” package:
Finally click to install the package via Ubuntu Software. Or run command (Ctrl+Alt+T) in terminal to install the package via dpkg:
sudo dpkg -i ~/Downloads/ubuntu-tweak_0.8.8-*.deb; sudo apt -f install
Once installed, launch the software from Unity Dash / App Launcher and enjoy!