afdd5daeb07ccef3df67165f6d10e7abd4db21ff
lrnassar
  Thu Sep 3 14:12:39 2026 -0700
Release the ENCODE Expression tracks for mm10 and mm39. refs #37001

Drop the alpha,beta release tags from all three include lines, so the container
and the bigWig signal composite now ship to beta and public. Verified with
tdbQuery -strict at all three release levels: no errors, and the tracks are
visible at each one (320 on mm10, 3 on mm39).

Point the pennantIcon at the news archive post and give it the release date:
newsarch.html#090426 "Released Sep. 4, 2026", matching the convention used by
the other released tracks. The liftOver pennants on the mm39 subtracks are
unchanged.

Add the Sep. 4 news announcement to newsarch.html and a matching entry to
indexNews.html, dropping the oldest front-page item to stay at the six-item
limit. The announcement links to the session at
genome.ucsc.edu/s/Lou/ENCODEexpression and includes a screenshot of Gap43,
whose expression rises through development and is highest in the four neural
tissues.

Add the screenshot image, which was previously untracked.

diff --git src/hg/makeDb/trackDb/mouse/mm39/mouseDevTimecourse.ra src/hg/makeDb/trackDb/mouse/mm39/mouseDevTimecourse.ra
index 5471d6ccf2a..d7fdbb16c11 100644
--- src/hg/makeDb/trackDb/mouse/mm39/mouseDevTimecourse.ra
+++ src/hg/makeDb/trackDb/mouse/mm39/mouseDevTimecourse.ra
@@ -1,54 +1,54 @@
 track mouseDevTimecourse
 superTrack on show
 shortLabel ENCODE Expression
 longLabel ENCODE developmental time course bulk RNA-seq gene expression
 group regulation
 origAssembly mm10
 #pennantIcon 10.jpg ../goldenPath/help/liftOver.html "lifted from mm10"
-pennantIcon New red ../goldenPath/newsarch.html#TBD "Released TBD"
+pennantIcon New red ../goldenPath/newsarch.html#090426 "Released Sep. 4, 2026"
 priority 0.6
 html mouseDevTimecourse
 
     track developmentTimecourseM21mm39TPM
     parent mouseDevTimecourse
     priority 1
     type bigBarChart
     shortLabel Timecourse M21 TPM
     longLabel ENCODE mouse development time course GENCODE M21 liftover TPM
     visibility pack
     barChartUnit TPM
     barChartFacets Tissue,Timepoint
     barChartStretchToItem on
     maxWindowToDraw 10000000
     barChartMetric sample
     labelFields name,name2
     defaultLabelFields name
     bigDataUrl /gbdb/mm39/mouseDevTimecourse/mouse_development_TPM_M21_mm39.bb
     barChartCategoryUrl /gbdb/mm39/mouseDevTimecourse/mouse_development_M21.categories
     barChartStatsUrl /gbdb/mm39/mouseDevTimecourse/mouse_development_M21.facets
     singleCellColumnNames off
     origAssembly mm10
     pennantIcon 10.jpg ../goldenPath/help/liftOver.html "lifted from mm10"
     html developmentTimecourseM21mm39TPM
 
     track developmentTimecourseM21mm39FPKM
     parent mouseDevTimecourse
     priority 2
     type bigBarChart
     shortLabel Timecourse M21 FPKM
     longLabel ENCODE mouse development time course GENCODE M21 liftover FPKM
     visibility hide
     barChartUnit FPKM
     barChartFacets Tissue,Timepoint
     barChartStretchToItem on
     maxWindowToDraw 10000000
     barChartMetric sample
     labelFields name,name2
     defaultLabelFields name
     bigDataUrl /gbdb/mm39/mouseDevTimecourse/mouse_development_FPKM_M21_mm39.bb
     barChartCategoryUrl /gbdb/mm39/mouseDevTimecourse/mouse_development_M21.categories
     barChartStatsUrl /gbdb/mm39/mouseDevTimecourse/mouse_development_M21.facets
     singleCellColumnNames off
     origAssembly mm10
     pennantIcon 10.jpg ../goldenPath/help/liftOver.html "lifted from mm10"
     html developmentTimecourseM21mm39FPKM