<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Storage Formats — Bazaar 2.6.0 documentation</title>
<link rel="stylesheet" href="../_static/default.css" type="text/css" />
<link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
<script type="text/javascript">
var DOCUMENTATION_OPTIONS = {
URL_ROOT: '../',
VERSION: '2.6.0',
COLLAPSE_INDEX: false,
FILE_SUFFIX: '.html',
HAS_SOURCE: true
};
</script>
<script type="text/javascript" src="../_static/jquery.js"></script>
<script type="text/javascript" src="../_static/underscore.js"></script>
<script type="text/javascript" src="../_static/doctools.js"></script>
<link rel="shortcut icon" href="../_static/bzr.ico"/>
<link rel="top" title="Bazaar 2.6.0 documentation" href="../index.html" />
<link rel="up" title="Bazaar User Reference" href="index.html" />
<link rel="next" title="Patterns" href="patterns-help.html" />
<link rel="prev" title="End of Line Conversion" href="eol-help.html" />
</head>
<body>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="patterns-help.html" title="Patterns"
accesskey="N">next</a></li>
<li class="right" >
<a href="eol-help.html" title="End of Line Conversion"
accesskey="P">previous</a> |</li>
<li><a href="http://bazaar.canonical.com/">
<img src="../_static/bzr icon 16.png" /> Home</a> | </li>
<a href="http://doc.bazaar.canonical.com/en/">Documentation</a> | </li>
<li><a href="../index.html">Table of Contents (2.6.0)</a> »</li>
<li><a href="index.html" accesskey="U">Bazaar User Reference</a> »</li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body">
<div class="section" id="storage-formats">
<h1>Storage Formats<a class="headerlink" href="#storage-formats" title="Permalink to this headline">ΒΆ</a></h1>
<p>To ensure that older clients do not access data incorrectly,
Bazaar’s policy is to introduce a new storage format whenever
new features requiring new metadata are added. New storage
formats may also be introduced to improve performance and
scalability.</p>
<p>The newest format, 2a, is highly recommended. If your
project is not using 2a, then you should suggest to the
project owner to upgrade.</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">Some of the older formats have two variants:
a plain one and a rich-root one. The latter include an additional
field about the root of the tree. There is no performance cost
for using a rich-root format but you cannot easily merge changes
from a rich-root format into a plain format. As a consequence,
moving a project to a rich-root format takes some co-ordination
in that all contributors need to upgrade their repositories
around the same time. 2a and all future formats will be
implicitly rich-root.</p>
</div>
<p>See <a class="reference internal" href="current-formats-help.html"><em>Current Storage Formats</em></a> for the complete list of
currently supported formats. See <a class="reference internal" href="other-formats-help.html"><em>Other Storage Formats</em></a> for
descriptions of any available experimental and deprecated formats.</p>
</div>
</div>
</div>
</div>
<div class="sphinxsidebar">
<div class="sphinxsidebarwrapper">
<h4>Previous topic</h4>
<p class="topless"><a href="eol-help.html"
title="previous chapter">End of Line Conversion</a></p>
<h4>Next topic</h4>
<p class="topless"><a href="patterns-help.html"
title="next chapter">Patterns</a></p>
<h3>This Page</h3>
<ul class="this-page-menu">
<li><a href="../_sources/user-reference/formats-help.txt"
rel="nofollow">Show Source</a></li>
</ul>
<div id="searchbox" style="display: none">
<h3>Quick search</h3>
<form class="search" action="../search.html" method="get">
<input type="text" name="q" />
<input type="submit" value="Go" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
<p class="searchtip" style="font-size: 90%">
Enter search terms or a module, class or function name.
</p>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="patterns-help.html" title="Patterns"
>next</a></li>
<li class="right" >
<a href="eol-help.html" title="End of Line Conversion"
>previous</a> |</li>
<li><a href="http://bazaar.canonical.com/">
<img src="../_static/bzr icon 16.png" /> Home</a> | </li>
<a href="http://doc.bazaar.canonical.com/en/">Documentation</a> | </li>
<li><a href="../index.html">Table of Contents (2.6.0)</a> »</li>
<li><a href="index.html" >Bazaar User Reference</a> »</li>
</ul>
</div>
<div class="footer">
© Copyright 2009-2011 Canonical Ltd.
Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.2.3.
</div>
</body>
</html>
