<pclass="download-menu">There are <aclass="reference external"href="http://buildbot.pypy.org/nightly/trunk/">nightly binary builds</a> available. Those builds are not always
as stable as the release, but they contain numerous bugfixes and
performance improvements.</p>
<p>Here are the various binaries of <strong>PyPy 1.9</strong>that we provide for x86 Linux,
Mac OS/X or Windows.</p>
<p>Here are the binaries of the current release — <strong>PyPy 1.9</strong>— (<aclass="reference external"href="https://bitbucket.org/pypy/pypy/src/default/pypy/doc/release-1.9.0.rst">what's
new in PyPy 1.9?</a>) for x86 Linux, Mac OS/X or Windows.</p>
<ulclass="download-menu simple">
<li>Download<ul>
<li><aclass="reference internal"href="#default-with-a-jit-compiler">Default (with a JIT Compiler)</a></li>
(you need the <aclass="reference external"href="http://www.microsoft.com/en-us/download/details.aspx?id=5582">VS 2008 runtime libraries vcredist_x86.exe</a>)
<li><aclass="reference external"href="https://bitbucket.org/pypy/pypy/downloads/pypy-1.9-win32.zip">Windows binary (32bit)</a> (you may need the <aclass="reference external"href="http://www.microsoft.com/en-us/download/details.aspx?id=5582">VS 2009 runtime library installer vcredist_x86.exe</a>)</li>
</ul>
<p>If your CPU is really old, it may not have SSE2. In this case, you need
to <aclass="reference internal"href="#translate">translate</a> yourself with the option <ttclass="docutils literal"><spanclass="pre">--jit-backend=x86-without-sse2</span></tt>.</p>