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Archive GHES 3.14 and 3.15 from GHAS feature matrix (EOL 2026-04-09)#74

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Archive GHES 3.14 and 3.15 from GHAS feature matrix (EOL 2026-04-09)#74
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Summary

GHES 3.14 and 3.15 both reached their closing-down date of 2026-04-09. This PR removes those two EOL versions from the live GHAS feature matrix and updates the End of life Archive reference.

Changes

  • Removed columns for GHES 3.14 and 3.15 from all 8 feature tables in the matrix
  • Updated the "End of life Archive" link label from 2022 - 2024 GHES 3.4 - GHES 3.13 to 2022 - 2026 GHES 3.4 - GHES 3.15 to reflect that 3.14 and 3.15 are now archived
  • Historical data for 3.14 and 3.15 is preserved in: advanced-security/archive/GHAS-on-GHES-feature-matrix-2025.md

The matrix now covers GHES 3.16 through 3.20 (all currently supported versions).

Patch versions checked this run

All supported versions were reviewed for new patches since the 2026-04-03 run:

  • 3.16.16 (latest, no change)
  • 3.17.13 (latest, no change)
  • 3.18.7 (latest, no change)
  • 3.19.4 (latest, no change)
  • 3.20.0 (latest, no change)

No significant GHAS-specific feature changes in those latest patches.

Omissions (items seen but excluded per significance filter)

The following were observed in recent patch release notes but excluded as they do not meet the significance bar for the matrix:

  • Security CVE fixes in 3.16.16 / 3.17.13 / 3.18.7 / 3.19.4 (CVE-2026-3854, CVE-2026-2266, CVE-2026-3582, CVE-2026-3306) - security patches, not GHAS feature changes
  • HAProxy thread auto-scaling improvement (3.16.16 / 3.17.13 / 3.18.7 / 3.19.4) - infrastructure change, not a GHAS feature

Table validation

All markdown tables were validated to have consistent pipe counts using the prescribed awk check - no errors.

Rendered view

https://github.com/advanced-security/advanced-security-material/blob/archive-ghes-3.14-3.15-eol/GHAS-on-GHES-feature-matrix.md

Generated by Update GHAS-on-GHES Feature Matrix ·

Remove GHES 3.14 and 3.15 columns from all feature matrix tables.
Both versions reached their closing-down date of 2026-04-09.
Historical data for these versions is preserved in the archive:
advanced-security/archive/GHAS-on-GHES-feature-matrix-2025.md

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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