Browsing Chuvash translation

99.

If you click <menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Software Sources</guimenuitem></menuchoice> and select the <guilabel>Updates</guilabel> tab, you will notice that four update sources are available. An explanation for each of these is provided below:

100.

<emphasis role="strong">Important security updates:</emphasis> Updates which fix critical security flaws are made available through this source. It is recommended that all users leave this source enabled (it should be enabled by default).

101.

<emphasis role="strong">Recommended updates:</emphasis> Updates which fix serious software problems (which are not security flaws) are made available through this source. Most users will want to leave this source enabled as common and annoying problems are often fixed with these updates.

102.

<emphasis role="strong">Pre-released updates:</emphasis> Updates which are currently being tested before being released to everyone are provided through this update source. If you would like to help test new updates (and get fixes for problems more quickly), enable this source. Be aware that these updates may not yet be well tested; it is not recommended that you enable this source unless you are prepared to experience occasional problems.

103.

<emphasis role="strong">Unsupported updates:</emphasis> When new versions of popular software are released they are sometimes <quote>back-ported</quote> to an older version of Ubuntu so that users can benefit from new features and fixes for problems. These backports are unsupported, may cause problems when installed and should only be used by people who are in desperate need of a new version of a software package which they know has been backported.