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Revision 19 as of 2019-05-26 00:41:20
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Note that if {{{APT::Default-Release}}} is set in your {{{/etc/apt/apt.conf}}} (or in any of {{{/etc/apt/apt.conf.d/*}}}), then, in order for automatic upgrades to work, it is necessary to add a similar configuration block to {{{/etc/apt/preferences}}} (see [[DebianMan:5/apt_preferences|apt_preferences(5)]] for more information): {{{ Note that if {{{APT::Default-Release}}} is set in your [[AptConf|apt configuration]], then, in order for automatic upgrades to work, some [[AptPreferences|apt pinning]] needs to be added (see [[DebianMan:5/apt_preferences|apt_preferences(5)]] for more information): {{{

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Some packages from proposed-updates may also be made available via the stable-updates mechanism. This path will be used for updates which many users may wish to install on their systems before the next point release is made, such as updates to virus scanners and timezone data. All packages from stable-updates will be included in point releases.

For Debian 9 "Stretch", in order to use packages from stretch-updates (aka stable-updates), you can add an entry to your sources.list. For example:

deb     http://deb.debian.org/debian stretch-updates main
deb-src http://deb.debian.org/debian stretch-updates main

For Debian 8 "Jessie", jessie-updates no longer exists as this suite no longer receives updates since 2018-05-17.

The next time you run apt update, the system will become aware of the packages in the (old)stable-updates section and will consider them when looking for packages to upgrade.

Note that if APT::Default-Release is set in your apt configuration, then, in order for automatic upgrades to work, some apt pinning needs to be added (see apt_preferences(5) for more information):

Package: *
Pin: release o=Debian,n=stretch-updates
Pin-Priority: 990

When a new package is made available via (old)stable-updates, this will be announced on the debian-stable-announce mailing list.

stable-updates were introduced in DebianSqueeze, to replace DebianLenny's Volatile (see announcement).

See also