diff options
Diffstat (limited to 'doc/manual/release-notes.xml')
| -rw-r--r-- | doc/manual/release-notes.xml | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/doc/manual/release-notes.xml b/doc/manual/release-notes.xml index 46c540b8789d..727a3e4a6179 100644 --- a/doc/manual/release-notes.xml +++ b/doc/manual/release-notes.xml @@ -38,9 +38,13 @@ paths.</para></listitem> - <listitem><para>TODO: <varname>allowedReferences</varname> for - checking the set of references in the output of a - derivation.</para></listitem> + <listitem><para>Derivations can specify the new special attribute + <varname>allowedReferences</varname> to enforce that the references + in the output of a derivation are a subset of a declared set of + paths. For example, if <varname>allowedReferences</varname> is an + empty list, then the output must not have any references. This is + used in NixOS to check that generated files such as initial ramdisks + for booting Linux don’t have any dependencies.</para></listitem> <listitem><para>TODO: semantic cleanups of string concatenation @@ -54,8 +58,11 @@ <command>nix-store --register-validity</command>.</para></listitem> - <listitem><para>TODO: magic <varname>exportReferencesGraph</varname> - attribute.</para></listitem> + <listitem><para>The new attribute + <varname>exportReferencesGraph</varname> allows builders access to + the references graph of their inputs. This is used in NixOS for + tasks such as generating ISO-9660 images that contain a Nix store + populated with the closure of certain paths.</para></listitem> <listitem><para>TODO: option <option>--max-silent-time</option>, @@ -109,8 +116,10 @@ disambiguation (<command>nix-env -qaA</command>).</para></listitem> - <listitem><para>TODO: substitutes table is gone, registering - substitutes is now much faster.</para></listitem> + <listitem><para>The substitutes table has been removed from the + database. This makes operations such as <command>nix-pull</command> + and <command>nix-channel --update</command> + <emphasis>much</emphasis> faster.</para></listitem> <listitem><para><command>nix-prefetch-url</command> now has a |