How to remove old cask's install file

[linhmtran168]

Today, I updated calibre with brew cask uninstall calibre && brew cask install calibre. But because the old calibre dmg was still in homebrew caches folder, brew cask did not download the new dmg and use the old one to install calibre instead. I had to manually remove the old dmg to install the new version.

Is there a way so that when i uninstall a cask, its installer file is also removed?

[vitorgalvao]

Yes, you can run brew cleanup --force -s && rm -rf $(brew --cache).

A better way to upgrade is being discussed, though, so please add your thoughts there.