• dvc: make flufl.lock opt-in and use zc.lockfile (#2918) @efiop
• test: a couple of dir helpers fixes (#2938) @Suor
• checkout: test: refactor to dir helpers (#2934) @pared
• commit: test: refactor to dir helpers (#2932) @pared
• snap: remove plugs (incompatible with classic) (#2939) @casperdcl
• use cache dir as a default remote when importing from local repo (#2915) @maykulkarni
• import-url: add directories to examples (#2907) @efiop
• test: move: convert to dir helpers (#2926) @pared