162f6398bea8de3f5f1f17455aacc8a51f11d06c
brianlee
  Mon Jun 28 14:54:15 2021 -0700
Adding the announcement about v3 versioning of the trackDb doc refs #26598

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     <div class="col-sm-3">
       <ul>
         <li><a href="#2005">2005 News</a></li>
         <li><a href="#2004">2004 News</a></li>
         <li><a href="#2003">2003 News</a></li>
         <li><a href="#2002">2002 News</a></li>
         <li><a href="#2001">2001 News</a></li>
       </ul>
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 </div>
 
 <!-- ============= 2021 archived news ============= -->
 <a name="2021"></a>
 
+<h2>June 28, 2021 &nbsp;&nbsp; Version 3 of Track Database Definition Document</h2>
+<p>
+The <a href="help/trackDb/trackDbHub.html" target="_blank">Track Database Definition Document</a>
+defining hub settings has been updated from version two to version three. This document primarily
+serves as a library of settings that users can refer to when they are setting up and configuring
+their own track hubs. The update in the version is to account for two new sections that highlighted
+for the new <a href="help/bigLolly.html">bigLolly</a> type specialized for variant data and the new
+<a href="help/vcf.html#trio" >vcfPhasedTrio</a> type specialized for phased VCF data.</p>
+<p>
+The new settings for these types are included in their relevant
+sections such as <code>vcfChildSample</code> and
+<code>vcfUseAltSampleNames</code> for the new <a href="help/trackDb/trackDbHub.html#vcfPhasedTrio"
+target="_blank">vcfPhasedTrio format</a>, or <code>lollySizeField</code> and <code>lollyField</code>
+for the new  <a href="help/trackDb/trackDbHub.html#bigLolly" target="_blank">bigLolly format</a>
+with full descriptions in the document.</p>
+<p>
+The Track Database Definition Document also serves a second function beyond defining settings as
+providing a versioned specification for those sites that support and display data from track hubs
+such as Ensembl and NCBI. See this <a href="http://genome.ucsc.edu/blog/how-portable-is-your-track-hub-use-hubcheck-to-find-out/"
+target="_blank">blog post</a> to learn more about this second element of the document and using the
+hubCheck utility to gain an idea of how your hub's settings might work on different sites.</p>
+
 <a name="062421"></a>
 <h2>June 24, 2021 &nbsp;&nbsp; New REVEL missense scores track for hg38 and hg19</h2>
 <p>
 The UCSC Genome Browser has just added the REVEL tracks to hg38 and hg19, 
 a much requested clinical dataset, now visualized and interactive with our tools. 
 REVEL scores predict the pathogenicity of missense variants for every possible 
 basepair change across the entire genome's coding sequences. 
 This dataset bases its scores on 13 individual tools
 to produce high predictive performance of common and rare mutations. To learn more about the
 REVEL dataset, please visit their site below:</p>
 <ul>
   <li><a href="https://sites.google.com/site/revelgenomics/" target="_blank">
   https://sites.google.com/site/revelgenomics</a></li>
 </ul>
 <p>