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105 lines
3.4 KiB
XML
105 lines
3.4 KiB
XML
<section xmlns="http://docbook.org/ns/docbook"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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version="5.0"
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xml:id="ssec-relnotes-1.11">
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<title>Release 1.11 (2015-01-05)</title>
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<para>This is primarily a bug fix release. It also has a number of new
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features:</para>
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<itemizedlist>
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<listitem>
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<para><command>nix-prefetch-url</command> can now download URLs
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specified in a Nix expression. For example,
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<screen>
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$ nix-prefetch-url -A hello.src
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</screen>
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will prefetch the file specified by the
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<function>fetchurl</function> call in the attribute
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<literal>hello.src</literal> from the Nix expression in the
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current directory, and print the cryptographic hash of the
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resulting file on stdout. This differs from <literal>nix-build -A
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hello.src</literal> in that it doesn't verify the hash, and is
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thus useful when you’re updating a Nix expression.</para>
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<para>You can also prefetch the result of functions that unpack a
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tarball, such as <function>fetchFromGitHub</function>. For example:
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<screen>
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$ nix-prefetch-url --unpack https://github.com/NixOS/patchelf/archive/0.8.tar.gz
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</screen>
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or from a Nix expression:
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<screen>
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$ nix-prefetch-url -A nix-repl.src
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</screen>
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</para>
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</listitem>
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<listitem>
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<para>The builtin function
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<function><nix/fetchurl.nix></function> now supports
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downloading and unpacking NARs. This removes the need to have
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multiple downloads in the Nixpkgs stdenv bootstrap process (like a
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separate busybox binary for Linux, or curl/mkdir/sh/bzip2 for
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Darwin). Now all those files can be combined into a single NAR,
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optionally compressed using <command>xz</command>.</para>
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</listitem>
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<listitem>
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<para>Nix now supports SHA-512 hashes for verifying fixed-output
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derivations, and in <function>builtins.hashString</function>.</para>
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</listitem>
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<listitem>
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<para>
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The new flag <option>--option build-repeat
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<replaceable>N</replaceable></option> will cause every build to
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be executed <replaceable>N</replaceable>+1 times. If the build
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output differs between any round, the build is rejected, and the
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output paths are not registered as valid. This is primarily
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useful to verify build determinism. (We already had a
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<option>--check</option> option to repeat a previously succeeded
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build. However, with <option>--check</option>, non-deterministic
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builds are registered in the DB. Preventing that is useful for
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Hydra to ensure that non-deterministic builds don't end up
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getting published to the binary cache.)
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</para>
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</listitem>
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<listitem>
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<para>Improved FreeBSD support.</para>
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</listitem>
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<listitem>
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<para><command>nix-env -qa --xml --meta</command> now prints
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license information.</para>
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</listitem>
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<listitem>
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<para>The maximum number of parallel TCP connections that the
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binary cache substituter will use has been decreased from 150 to
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25. This should prevent upsetting some broken NAT routers, and
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also improves performance.</para>
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</listitem>
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<listitem>
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<para>All "chroot"-containing strings got renamed to "sandbox".
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In particular, some Nix options got renamed, but the old names
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are still accepted as lower-priority aliases.
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</para>
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</listitem>
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</itemizedlist>
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<para>This release has contributions from TODO.</para>
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</section>
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