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BlackSTAR 1.0.0

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@github-actions github-actions released this 24 Jul 20:58
v1.0.0
cd3adb6

BlackSTAR 1.0.0

BlackSTAR 1.0.0 establishes BlackSTAR as an independently maintained,
performance-oriented successor derived from STAR 2.7.11b.

Project Contract

  • Independent semantic release versioning.
  • Explicit STAR compatibility-base and genome-format identities.
  • Maintainer-led governance, security, support, and contribution policies.
  • Dedicated issue intake for upstream-origin behavior, BlackSTAR regressions,
    compatibility, and performance.
  • Protected main development and reproducible release publication.

BlackSTAR remains unofficial and is not affiliated with or endorsed by the
original STAR authors.

Runtime and Compatibility

The STAR executable name and qualified command-line behavior remain
available. The transitional STAR --version token remains STAR-shaped for
wrapper compatibility; STAR --version-json reports the independent release,
compatibility base, executable identity, and genome format.

No alignment, index algorithm, or genome-insert behavior changed solely for the
independence transition. BlackSTAR 1.0.0 carries the qualified .2 runtime:

  • deterministic parallel full-index construction;
  • Full, Overlay, and Delta named-sequence insertion with GTF support;
  • high-thread alignment scheduling, affinity, NUMA, and transcript-copy
    improvements; and
  • strict package identity, reproducible release artifacts, and rollback tools.

Direct Official STAR Comparison

On the qualified 96-thread local-SSD host:

  • full CHM13 index generation used 51.44% less wall time, with 46.18% higher
    median peak RSS;
  • uncompressed alignment used 33.11% less wall time;
  • zcat alignment used 30.75% less wall time; and
  • cold GFP/GST Delta insertion was 31.50x faster than an official STAR full
    rebuild.

These results are workload-specific. See docs/PERFORMANCE.md and the bounded
machine-readable receipts for the complete claim boundary.

Platform

The stable target is x86-64 Linux with an OpenMP runtime. Other inherited source
paths remain unqualified.

Artifacts

The release publishes the STAR executable, deterministic archive, checksum
sidecar, build metadata, linkage metadata, SPDX 2.3 SBOM, and GitHub build
provenance. The archive and release assets retain the MIT license and upstream
attribution.

Publication does not authorize integration into an external production
pipeline.

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