# Release X.Y (202?-??-??) * The `repeat` and `enforce-determinism` options have been removed since they had been broken under many circumstances for a long time. * You can now use [flake references] in the [old command line interface], e.g. [flake references]: ../command-ref/new-cli/nix3-flake.md#flake-references [old command line interface]: ../command-ref/main-commands.md ``` # nix-build flake:nixpkgs -A hello # nix-build -I nixpkgs=flake:github:NixOS/nixpkgs/nixos-22.05 \ '' -A hello # NIX_PATH=nixpkgs=flake:nixpkgs nix-build '' -A hello ``` * Allow explicitly selecting outputs in a store derivation installable, just like we can do with other sorts of installables. For example, ```shell-session $ nix-build /nix/store/gzaflydcr6sb3567hap9q6srzx8ggdgg-glibc-2.33-78.drv^dev` ``` now works just as ```shell-session $ nix-build glibc^dev` ``` does already.