Remove the historical 21L (BA.2-rooted) GISAID build variant#1211
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The nextstrain-gisaid-21L profile produced a BA.2-rooted GISAID build that is no longer maintained or documented and is superseded by the main open/GISAID builds. With GISAID flat-file updates having ended, this variant has no live purpose. Removes the self-contained profile (nextstrain_profiles/nextstrain-gisaid-21L/, including its prefilter.smk and builds) and its scheduled workflow (.github/workflows/rebuild-gisaid-21L.yml). Nothing else references it. Note this only removes the *build variant*; the Nextstrain clade "21L" (BA.2) and the sars-cov-2-21L Nextclade dataset remain fully intact in the clade definitions and config. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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victorlin
approved these changes
Jun 29, 2026
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Fourth in the pandemic-era cruft cleanup series (after #1208, #1209, #1210).
Motivation
The
nextstrain-gisaid-21Lprofile produced a BA.2 (clade 21L)-rooted GISAID build. It's undocumented (absent fromdev_docs.md), no longer maintained, and superseded by the main open/GISAID builds. With GISAID flat-file updates having ended, it has no live purpose.What's removed
nextstrain_profiles/nextstrain-gisaid-21L/— the entire self-contained profile (builds.yaml,config.yaml,prefilter.smk,exclude-clades.tsv,include.txt, description)..github/workflows/rebuild-gisaid-21L.yml— its scheduled rebuild workflow.Scope note
This removes only the build variant. The Nextstrain clade
21L(BA.2) and thesars-cov-2-21LNextclade dataset option are untouched — they remain in the clade definitions (defaults/clades.tsv,emerging_lineages.tsv, etc.) and config reference.Verification
dev_docs,redirects.yaml, README, or other-workflow references tonextstrain-gisaid-21L/rebuild-gisaid-21L/ncov_gisaid_21L).Test plan
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