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Server Release 4.10.3

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Before Upgrading See the CircleCI server 4.10 release notes and upgrade guide for this release. If you mirror images to a private registry or run an air-gapped install, copy the new NGINX image before you upgrade. See Configuration Changes below.

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Also shipped Nov 6, 2026CircleCI in November 2026 →

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Functions now available in beta

CircleCI launched Functions in beta, allowing developers and AI agents to define, version, pin, and reuse CI environment setup modules via CLI and MCP server.

Beta
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Improved commit status links and failure details

We’ve updated the commit statuses CircleCI posts to your VCS to make it faster to see which run failed and why, for both people and AI agents. More descriptive status URLs Status links previously used the format https://circleci.com/{project-slug}/{build-number} .

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Server Release 4.9.8

Before Upgrading See the CircleCI server 4.9 release notes and upgrade guide for this release. If you mirror images to a private registry or run an air-gapped install, copy the new NGINX image before you upgrade. See Configuration Changes below.

Update
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