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Site generated: 2026-03-07 00:04:06 UTC 3/7/2026, 12:04:06 AM local
Home / Circleci / Incident Details

Deprecation of Mac M1 and M2 resource classes

Resolved Scheduled Maintenance
Started
Tue, Jan 27, 2026, 12:00 AM UTC
Last Updated
Tue, Jan 27, 2026, 12:00 AM UTC
Resolved
Tue, Jan 27, 2026, 12:00 AM UTC
This maintenance window has been completed (Total duration: -1m)

AI-Powered Analysis

Impact Severity
major
Categories
compute
Affected Users
all-users
Root Cause Analysis
Deprecation of Mac M1 and M2 resource classes
Analysis performed by anthropic.claude-3-haiku-20240307-v1:0 on Fri, Mar 6, 2026, 09:03 AM UTC

Incident History

Jan 27, 00:00 UTC
Completed - The scheduled maintenance has been completed.

Jan 26, 00:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.

Dec 11, 23:10 UTC
Scheduled - As part of our ongoing infrastructure improvements, we will be deprecating Mac M1 and M2 resource classes on February 16th, 2026.

Ahead of the deprecation date, we will be performing 24-hour brownouts from 00:00:01 to 23:59:59 UTC, during which these resources will be unavailable.

You can opt out of brownouts by disabling the setting in Organization Settings > Advanced > Enable resource class brownouts. However, please note that access to these resources will be entirely removed on February 16th, 2026, regardless of brownout settings.

Please plan to transition to M4 instances (m4pro.medium and m4pro.large) ahead of the deprecation date.

M4 resources will be made available to organizations on free plans starting November 10th, 2025.

External Resources