Releasesby GlyphDeprecation of `branches` data in the v1 and v1.1 project and settings APIs
CircleCI is removing the branches field from the following v1 and v1.1 endpoints on December 7, 2026 : GET /api/v1/projects GET /api/v1.1/projects GET /api/v1/project/:vcs-type/:username/:repo/settings GET /api/v1.1/project/:vcs-type/:username/:repo/settings This change applies to CircleCI cloud.
Also shipped Nov 10, 2026CircleCI in November 2026 →
Amazon Bedrock AgentCore now offers a Web Search API
AWS launched the InvokeWebSearch API on Amazon Bedrock AgentCore, enabling direct web search execution billed at $7 per 1,000 queries.
Flagship - Evaluate Flagship feature flags from Rust
Cloudflare released an official Rust SDK (`cloudflare-flagship`) for Flagship, enabling async Rust applications to evaluate feature flags via OpenFeature with remote or in-process local evaluation.
BigQuery generative AI functions support gemini-4-carbon
Google Cloud announced general availability for the gemini-4-carbon model across BigQuery generative AI functions.
Amazon OpenSearch Service announces managed cross-Region disaster recovery
AWS introduced managed cross-Region disaster recovery for Amazon OpenSearch Service, providing continuous data replication with an RPO under one minute and RTO under 20 minutes.
Amazon Bedrock adds bedrock-runtime endpoint support for Daybreak models
AWS added support for OpenAI Daybreak Red and Daybreak Blue cybersecurity models on Amazon Bedrock runtime endpoints via US and Global cross-Region inference profiles.
Gemini Enterprise: Gemini 4 Carbon available in web app, mobile app, Workflow Builder, and AI developer tools
Google Cloud generally released Gemini 4 Carbon across Gemini Enterprise web and mobile apps, Workflow Builder, and AI developer tools with multi-region availability.
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Config validation warnings will block pipelines on December 14, 2026
Starting December 14, 2026, CircleCI will treat config validation warnings as hard failures, blocking pipeline execution. Users are advised to review and fix existing warnings before this date.
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} .
Xcode 27.3 Beta 1 Available
The Xcode 27.3 Beta 1 image is now available to be used in CircleCI pipelines. The full manifest of installed software can be found here .
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.
“Rerun job with SSH” sessions can now be opened right from the CircleCI web app
You no longer need a local terminal, a copied IP address, or any allowlisting on your workstation. What’s new One address, one trusted host key. Connect with ssh ssh.circleci.com instead of a different IP and port for every job. You’ll no longer get a “do you trust this host?” warning on each SSH re-run. Works from restrictive networks.
Re-announcing the deprecation of Xcode 16.2.0 and 26.2.0
CircleCI announced that Xcode 16.2.0 and 26.2.0 images will be removed on December 7, 2026, with 24-hour brownouts conducted prior to enforcement.
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.
Server Release 4.10.2
CircleCI Server 4.10.2 includes security updates to reject compromised certificates and adds new Kong routes for the OAuth authorization server.