1) Allow non-existing files as targets for `dvc metrics add`; 2) Support HTTP(s) as external dependency and remote(pull/fetch/status only); 3) Fix bug in `dvc checkout` confirmation prompt;
0.20.8
1) Support `dvc status --with-deps`;
0.20.7
1) Fix bug in interactive mode for `dvc pipeline show --ascii` on Windows;
1) Spawn background process to fetch updates; 2) Ask user for confirmation when deleting files on checkout; 3) Bug fixes;
0.20.4
1) Checkout no longer removes the whole directory, and checks individual files instead; 2) Automatically ignoring temporary state files; 3) Increase state db size limit from 10M to 100M entries;