&apt-email;
&apt-product;
<!-- The last update date -->
- <date>2015-10-15T00:00:00Z</date>
+ <date>2016-08-06T00:00:00Z</date>
</refentryinfo>
<refmeta>
Starting with version 0.6, <command>APT</command> contains code that does
signature checking of the Release file for all repositories. This ensures
that data like packages in the archive can't be modified by people who
- have no access to the Release file signing key.
+ have no access to the Release file signing key. Starting with version 1.1
+ <command>APT</command> requires repositories to provide recent authentication
+ information for unimpeded usage of the repository.
</para>
<para>
If an archive has an unsigned Release file or no Release file at all
- current APT versions will raise a warning in <command>update</command>
- operations and front-ends like <command>apt-get</command> will require
- explicit confirmation if an installation request includes a package from
- such an unauthenticated archive.
+ current APT versions will refuse to download data from them by default
+ in <command>update</command> operations and even if forced to download
+ front-ends like &apt-get; will require explicit confirmation if an
+ installation request includes a package from such an unauthenticated
+ archive.
</para>
<para>
- In the future APT will refuse to work with unauthenticated repositories by
- default until support for them is removed entirely. Users have the option to
- opt-in to this behavior already by setting the configuration option
- <option>Acquire::AllowInsecureRepositories</option> to <literal>false</literal>.
+ As a temporary exception &apt-get; (not &apt;!) raises warnings only if it
+ encounters unauthenticated archives to give a slightly longer grace period
+ on this backward compatibility effecting change. This exception will be removed
+ in future releases and you can opt-out of this grace period by setting the
+ configuration option <option>Binary::apt-get::Acquire::AllowInsecureRepositories</option>
+ to <literal>false</literal> or <option>--no-allow-insecure-repositories</option>
+ on the command line.
+ </para>
+
+ <para>
+ You can force all APT clients to raise only warnings by setting the
+ configuration option <option>Acquire::AllowInsecureRepositories</option> to
+ <literal>true</literal>. Individual repositories can also be allowed to be insecure
+ via the &sources-list; option <literal>allow-insecure=yes</literal>.
+ Note that insecure repositories are strongly discouraged and all options
+ to force apt to continue supporting them will eventually be removed.
+ Users also have the <option>Trusted</option> option available to disable
+ even the warnings, but be sure to understand the implications as detailed in
+ &sources-list;.
+ </para>
+
+ <para>
+ A repository which previously was authenticated but would loose this state in
+ an <command>update</command> operation raises an error in all APT clients
+ irrespective of the option to allow or forbid usage of insecure repositories.
+ The error can be overcome by additionally setting
+ <option>Acquire::AllowDowngradeToInsecureRepositories</option>
+ to <literal>true</literal> or for Individual repositories with the &sources-list;
+ option <literal>allow-downgrade-to-insecure=yes</literal>.
</para>
<para>