      <div class="masthead">
        <p class="lead">
           <a href="index.html">
             <img src="img/asterixdb_tm.png" style="height:75px; width:auto; vertical-align:bottom; margin-top:10px;"/>
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      <nav class="navbar navbar-default">
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              <span class="sr-only">Toggle navigation</span>
              <span class="icon-bar"></span>
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            <a class="navbar-brand" href="{{ site.url }}index.html">Overview</a>
          </div>
          <div class="navbar-collapse collapse">
            <ul class="nav navbar-nav">
              <li><a href="{{ site.url }}download.html">Download</a></li>
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                  <li class="dropdown-header">Stable release</li>
                  <li><a href="{{ site.DOCS_BASE_URL }}/{{ site.STABLE_VERSION }}/index.html">Documentation for {{ site.STABLE_VERSION }}<i class="fa fa-external-link fa-sm"></i></a></li>
                  <li class="divider"></li>
                  <li class="dropdown-header">Snapshot release</li>
                  <li><a href="{{ site.UNSTABLE_DOCS_BASE_URL }}index.html">Documentation for {{ site.UNSTABLE_VERSION }}  <i class="fa fa-external-link fa-sm"></i></a></li>
                  <li class="divider"></li>
                  <li class="dropdown-header">Tutorial for SQL Users</li>
                  <li><a href="{{ site.url }}files/SQL_Book.pdf">Don Chamberlin's SQL++ for SQL Users<i class="fa fa-external-link fa-sm"></i></a></li>
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              <li><a href="{{ site.url }}about.html">About</a></li>
              <li class="dropdown">
                <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Community<span class="caret"></span></a>
                <ul class="dropdown-menu" role="menu">
                  <li><a href="{{ site.url }}community.html">Mailing Lists</a></li>
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                  <li><a href="{{ site.url }}dev-setup.html">Development Setup</a></li>
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                  <li><a href="{{ site.url }}extension.html">Extending AsterixDB</a></li>
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