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Prometheus

v3.9.1Observability
Jan 7, 2026

OTHER 2

Prometheus v3.9.1 is a maintenance release focused on operator-facing bug fixes. The recorded fixes address an Agent startup crash and relabel keep/drop behavior in scraping.

All 2 other recorded changesfixes 2

fixes (2)

  • - [BUGFIX] Agent: fix crash shortly after startup from invalid type of object. #17802
  • - [BUGFIX] Scraping: fix relabel keep/drop not working. #17807
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