EMR clusters on an unsupported release — End of Support passed Sep 1, 2026 — End of Life Sep 1, 2027

AWSDeprecations & retirementsTeam planSeverity: highaws.emr

Active Amazon EMR clusters on releases 2.x – 5.35 or 6.0 – 6.5, which reached End of Support on September 1, 2026 and End of Life on September 1, 2027

What LeftSize checks

Find active Amazon EMR clusters on releases that reached End of Support on 2026-09-01.

Why it matters

Missed retirement and end-of-support dates turn into forced upgrades, outages or extended support charges at a moment you did not choose.

What you get in the GitHub issue

LeftSize runs this check from a scheduled GitHub Action with a read-only identity in your AWS account and opens one issue per scope, updated on every scan. The issue includes:

  • The affected resources, grouped per subscription, resource group or account and region
  • Background on why it was flagged and when it is a false positive
  • Cost and operational impact of fixing it
  • Alternative approaches and their trade-offs
  • Step-by-step remediation with safety checks
  • Ready-to-run fix scripts (CLI, PowerShell or Terraform where available)
  • Snooze, ignore or report a finding with a comment on the issue
Install LeftSizeIncluded in the Team and Business plans.

Official references