cf87c27669523cb325d1d2d52e11e6f18d24504e
gperez2
  Wed Aug 26 18:36:04 2026 -0700
Announcing the gnomAD v4.1.1 and MPC tracks. Adding pennantIcons to the new and updated tracks. refs #38166 refs #37351 refs #37478

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 <p>You can sign-up to get these announcements via our 
 <a target=_blank href="https://groups.google.com/a/soe.ucsc.edu/g/genome-announce?hl=en">Genome-announce</a>
 email list. We send around one short announcement email every two weeks.</p>
 
 <p>Smaller software changes are not announced here.  A summary of the three-weekly release changes can be 
 found <a target=_blank href="https://genecats.gi.ucsc.edu/builds/versions.html">here</a>. 
 For the full list of our daily code changes head to our <a
 href="https://github.com/ucscGenomeBrowser/kent/commits/master"
 target=_blank>GitHub page</a>. Lastly, see our <a href="credits.html" target="_blank">
 credits page</a> for acknowledgments of the data we host.</p>
 
 <!-- ============= 2026 archived news ============= -->
 
 <a name="2026"></a>
 
+<a name="082626"></a>
+<h2>Aug. 26, 2026 &nbsp;&nbsp; gnomAD v4.1.1 and MPC tracks for hg38</h2>
+<p>
+We are excited to announce the updated
+<b>Genome Aggregation Database (gnomAD) v4.1.1 tracks</b> for human assembly
+hg38/GRCh38, along with a
+new <b>gnomAD MPC track</b>, both found in the <a target=_blank href="/cgi-bin/hgTrackUi?db=hg38&g=gnomadVariants">gnomAD superTrack</a>. The tracks are:</p>
+<ul>
+  <li><b><a href="/cgi-bin/hgTrackUi?db=hg38&g=gnomadVariantsV4.1" target="_blank">gnomAD v4.1.1</a></b>
+  (composite track): Shows exome and genome variants. This release revises the LOFTEE END_TRUNC
+  GERP distance threshold from -58.0 to 0.0, reclassifying about 79,920 predicted loss-of-function
+  variants from high-confidence to low-confidence.</li>
+  <li><b><a href="/cgi-bin/hgTrackUi?db=hg38&g=gnomadPLI" target="_blank">gnomAD Constraint Metrics</a></b>
+  (composite track): The v4.1.1 constraint metrics were recomputed
+  using a Bayesian framework instead of the previous frequentist approach, expanded the coverage model
+  from a depth cutoff to allele number, and now include chrX and chrY. gnomAD's recommended LOEUF
+  threshold changed from &lt;0.35 to &lt;0.45 accordingly. The two v4.1.1 subtracks:
+   <ul>
+    <li><b>Transcript LoF v4.1.1</b>: gnomAD Predicted Loss of Function Constraint Metrics By Transcript (LOEUF and pLI)</li>
+    <li><b>Transcript Missense v4.1.1</b>: gnomAD Predicted Missense Constraint Metrics By Transcript (Z-scores)</li>
+   </ul>
+  </li>
+  <li><b><a href="/cgi-bin/hgTrackUi?db=hg38&g=gnomadMpc" target="_blank">gnomAD MPC</a></b> (composite
+  track): Shows a machine-learning score that predicts which missense variants are likely to be
+  deleterious, computed from the gnomAD v4.1.1 release of 730,947 exomes. The score is shown as four
+  allele-specific tracks (A, C, G, T).</li>
+  <li><b><a href="/cgi-bin/hgTrackUi?db=hg38&g=gnomadMpcOverlaps" target="_blank">gnomAD MPC overlaps</a></b>:
+  Covering the small subset of variants (about 250,000, or 0.4% of the ~70 million scored variants)
+  that are scored against more than one transcript.</li>
+</ul>
+
+<div class="text-center" style="margin-top: 1.5em;">
+<a href="https://genome.ucsc.edu/s/gperez2/gnomADv4.1.1" target="_blank">
+<img alt="Genome Browser screenshot of the gnomAD v4.1.1 and MPC tracks" src="/images/newsArchImages/gnomadV4.1.1_MPC.png"
+width='75%'></a>
+<p class="gbsCaption"><em>gnomAD v4.1.1 exomes and genomes variants, the LoF and missense
+constraint tracks, and the four gnomAD MPC allele tracks plus MPC overlaps, at the KCNH1 locus
+on hg38.</em></p>
+</div>
+
+<p>
+For more information about the v4.1.1 update, see the <a href="https://gnomad.broadinstitute.org/news/2026-03-gnomad-v4-1-1/" target="_blank">gnomAD
+blog post</a>.</p>
+
+<p>
+We would like to thank the <a href="https://gnomad.broadinstitute.org/about" target="_blank">Genome
+Aggregation Database Consortium</a> for making these data available, and Caitlin Samocha for
+providing the MPC score data. We would also like to thank Christopher Lee, Maximilian Haeussler,
+and Gerardo Perez for their efforts on this release.</p>
+
 <a name="081126"></a>
 <h2>Aug. 11, 2026 &nbsp;&nbsp; Deleteriousness Predictions: ClinPred for hg19 and hg38</h2>
 <p>
 We are pleased to announce the release of the ClinPred pathogenicity score track for
 <a href="/cgi-bin/hgTrackUi?db=hg19&g=clinPred&position=default" target="_blank">hg19</a> and
 <a href="/cgi-bin/hgTrackUi?db=hg38&g=clinPred&position=default" target="_blank">hg38</a>.
 ClinPred is a machine-learning predictor of pathogenicity for nonsynonymous (missense)
 single-nucleotide variants, combining existing pathogenicity scores with population allele
 frequency from gnomAD. It was trained on confidently annotated disease-causing and benign
 variants from ClinVar. Pre-computed scores are provided for all possible human missense
 variants in the exome.
 </p>
 
 <p>
 Scores range from 0 to 1, with higher values indicating a greater predicted likelihood