MC1392568 High Major change
Microsoft Defender for Endpoint: Support for Amazon Linux 2 (ARM64) retiring October 31, 2026
Summary AI-generated
Support for Microsoft Defender for Endpoint on Amazon Linux 2 (ARM64) will retire effective October 31, 2026; updates and support will end for this platform.
Suggested actions AI-generated
- Identify devices running Amazon Linux 2 (ARM64) with Defender for Endpoint
- Prevent upgrades beyond version 101.25122.0004
- Plan and complete migration to a supported Linux distribution for MDE before October 31, 2026
Written by Azure OpenAI (gpt-4.1) from the text of the post below. It can be incomplete or wrong; the original post is authoritative.
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Original post from Microsoft
Updated September 23, 2026: We have updated this post as a reminder. Thank you for your patience.
[What and Why]
We are retiring support for Microsoft Defender for Endpoint (MDE) on Amazon Linux 2 (AL2) running on ARM64 architecture, effective October 31, 2026.
[Schedule]
- Retirement effective: October 31, 2026
- After this date, support and updates will no longer be available.
[Impact on Your Organization]
Who is affected
- Organizations using Microsoft Defender for Endpoint on Amazon Linux 2 (ARM64)
- Organizations using AL2 on AMD64/x86_64 are not affected
Platforms/Services
- Microsoft Defender for Endpoint
- Amazon Linux 2 (ARM64)
What will happen
- Defender versions released after this build will not install on AL2 (ARM64) due to platform incompatibility.
- Version 101.25122.0004 is the last supported version for this platform.
- After October 31, 2026:
- No security updates
- No bug fixes
- No technical support
- Devices remaining on this platform may:
- Miss new features, detection improvements, and protection enhancements
- Be exposed to increased security and stability risks over time
[Action Required / Recommendations]
Action required by October 31, 2026.
Admins should:
- Identify devices running Amazon Linux 2 (ARM64) with Defender for Endpoint.
- Prevent upgrades beyond version 101.25122.0004 on those devices.
- Plan migration to a supported Linux distribution for MDE.
- Complete migration before October 31, 2026.
No action is required for devices running Amazon Linux 2 on AMD64/x86_64 architectures.
[Compliance Considerations]
No compliance considerations identified. Review as appropriate for your organization.
Additional details from Microsoft
- Summary
- Support for Microsoft Defender for Endpoint on Amazon Linux 2 (ARM64) will retire on October 31, 2026. After this date, no updates or support will be provided. Organizations must identify affected devices, prevent upgrades beyond version 101.25122.0004, and migrate to a supported Linux distribution before the deadline.