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diff --git a/doc/manual/release-notes/rl-1.11.xml b/doc/manual/release-notes/rl-1.11.xml new file mode 100644 index 000000000000..efb03d61393f --- /dev/null +++ b/doc/manual/release-notes/rl-1.11.xml @@ -0,0 +1,148 @@ +<section xmlns="http://docbook.org/ns/docbook" + xmlns:xlink="http://www.w3.org/1999/xlink" + xmlns:xi="http://www.w3.org/2001/XInclude" + version="5.0" + xml:id="ssec-relnotes-1.11"> + +<title>Release 1.11 (2016-01-19)</title> + +<para>This is primarily a bug fix release. It also has a number of new +features:</para> + +<itemizedlist> + + <listitem> + <para><command>nix-prefetch-url</command> can now download URLs + specified in a Nix expression. For example, + +<screen> +$ nix-prefetch-url -A hello.src +</screen> + + will prefetch the file specified by the + <function>fetchurl</function> call in the attribute + <literal>hello.src</literal> from the Nix expression in the + current directory, and print the cryptographic hash of the + resulting file on stdout. This differs from <literal>nix-build -A + hello.src</literal> in that it doesn't verify the hash, and is + thus useful when you’re updating a Nix expression.</para> + + <para>You can also prefetch the result of functions that unpack a + tarball, such as <function>fetchFromGitHub</function>. For example: + +<screen> +$ nix-prefetch-url --unpack https://github.com/NixOS/patchelf/archive/0.8.tar.gz +</screen> + + or from a Nix expression: + +<screen> +$ nix-prefetch-url -A nix-repl.src +</screen> + + </para> + + </listitem> + + <listitem> + <para>The builtin function + <function><nix/fetchurl.nix></function> now supports + downloading and unpacking NARs. This removes the need to have + multiple downloads in the Nixpkgs stdenv bootstrap process (like a + separate busybox binary for Linux, or curl/mkdir/sh/bzip2 for + Darwin). Now all those files can be combined into a single NAR, + optionally compressed using <command>xz</command>.</para> + </listitem> + + <listitem> + <para>Nix now supports SHA-512 hashes for verifying fixed-output + derivations, and in <function>builtins.hashString</function>.</para> + </listitem> + + <listitem> + <para> + The new flag <option>--option build-repeat + <replaceable>N</replaceable></option> will cause every build to + be executed <replaceable>N</replaceable>+1 times. If the build + output differs between any round, the build is rejected, and the + output paths are not registered as valid. This is primarily + useful to verify build determinism. (We already had a + <option>--check</option> option to repeat a previously succeeded + build. However, with <option>--check</option>, non-deterministic + builds are registered in the DB. Preventing that is useful for + Hydra to ensure that non-deterministic builds don't end up + getting published to the binary cache.) + </para> + </listitem> + + <listitem> + <para> + The options <option>--check</option> and <option>--option + build-repeat <replaceable>N</replaceable></option>, if they + detect a difference between two runs of the same derivation and + <option>-K</option> is given, will make the output of the other + run available under + <filename><replaceable>store-path</replaceable>-check</filename>. This + makes it easier to investigate the non-determinism using tools + like <command>diffoscope</command>, e.g., + +<screen> +$ nix-build pkgs/stdenv/linux -A stage1.pkgs.zlib --check -K +error: derivation ‘/nix/store/l54i8wlw2265…-zlib-1.2.8.drv’ may not +be deterministic: output ‘/nix/store/11a27shh6n2i…-zlib-1.2.8’ +differs from ‘/nix/store/11a27shh6n2i…-zlib-1.2.8-check’ + +$ diffoscope /nix/store/11a27shh6n2i…-zlib-1.2.8 /nix/store/11a27shh6n2i…-zlib-1.2.8-check +… +├── lib/libz.a +│ ├── metadata +│ │ @@ -1,15 +1,15 @@ +│ │ -rw-r--r-- 30001/30000 3096 Jan 12 15:20 2016 adler32.o +… +│ │ +rw-r--r-- 30001/30000 3096 Jan 12 15:28 2016 adler32.o +… +</screen> + + </para></listitem> + + <listitem> + <para>Improved FreeBSD support.</para> + </listitem> + + <listitem> + <para><command>nix-env -qa --xml --meta</command> now prints + license information.</para> + </listitem> + + <listitem> + <para>The maximum number of parallel TCP connections that the + binary cache substituter will use has been decreased from 150 to + 25. This should prevent upsetting some broken NAT routers, and + also improves performance.</para> + </listitem> + + <listitem> + <para>The Nix language now supports floating point numbers. They are + based on regular C++ <literal>float</literal> and compatible with + existing integers and number-related operations. Export and import to and + from JSON and XML works, too. + </para> + </listitem> + <listitem> + <para>All "chroot"-containing strings got renamed to "sandbox". + In particular, some Nix options got renamed, but the old names + are still accepted as lower-priority aliases. + </para> + </listitem> + +</itemizedlist> + +<para>This release has contributions from Anders Claesson, Anthony +Cowley, Bjørn Forsman, Brian McKenna, Danny Wilson, davidak, Eelco Dolstra, +Fabian Schmitthenner, FrankHB, Ilya Novoselov, janus, Jim Garrison, John +Ericson, Jude Taylor, Ludovic Courtès, Manuel Jacob, Mathnerd314, +Pascal Wittmann, Peter Simons, Philip Potter, Preston Bennes, Rommel +M. Martinez, Sander van der Burg, Shea Levy, Tim Cuthbertson, Tuomas +Tynkkynen, Utku Demir and Vladimír Čunát.</para> + +</section> |