From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alexander Litvinov <litvinov2004@gmail.com>
Subject: Re: [ANNOUNCE] GIT 1.5.2-rc3
Date: Fri, 11 May 2007 10:23:37 +0700
Organization: AcademSoft Ltd.
Message-ID: <200705111023.37676.litvinov2004@gmail.com>
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To: Junio C Hamano <junkio@cox.net>
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Hello.

> * Plumbing level subproject support.
>
>   You can include a subdirectory that has an independent git
>   repository in your index and tree objects as a
>   "subproject".  This plumbing (i.e. "core") level subproject
>   support explicitly excludes recursive behaviour.
>
>   The "subproject" entries in the index and trees are
>   incompatible with older versions of git.  Experimenting with
>   the plumbing level support is encouraged, but be warned that
>   unless everybody in your project updates to this release or
>   later, using this feature would make your project
>   inaccessible by people with older versions of git.

Is there any help onhow to use subprojects ? I did not found anything at 
Documentation/ directiory.

Thanks for help,
Alexander Litvinov.