Releasesby GlyphAPI Change: Pipeline Error Response Format Update
API Change: Pipeline Error Response Format Update We’ve updated how pipeline errors are returned in the CircleCI API. What’s changing Previously, related lines from a single config error were returned as separate objects in the errors array: "errors": [ { "type": "config-deprecated-syntax", "message": "Error calling workflow: 'build-test-deploy'" }, {...
Also shipped Sep 21, 2026CircleCI in September 2026 →
BigQuery Studio query results pane shows recent run history
The Query results pane now shows a short history of recent runs for a query, including multi-statement queries, without switching to the Job history tab. It is generally available.
The query history system table is now generally available
The system.query.history system table is now generally available. Use it to access account-wide records for queries run on SQL warehouses or serverless compute, including execution status, duration metrics, and query source. See Query history system table reference .
Cortex AI Function Evaluation for measuring quality (Public Preview)
Snowflake Cortex AI Function Evaluation is now available in public preview, enabling customers to measure the output quality, cost, and token usage of custom AI Functions and Cortex AI calls against labeled datasets.
Cortex AI Function Optimization for more efficient AI implementations (Public Preview)
Snowflake Cortex AI Function Optimization is now available in public preview, enabling customers to automatically search across prompts and models for improved implementations of custom AI Functions.
Cortex Agents Compact API (Preview)
The Cortex Agents Compact API is now available in preview. Use the agent:compact endpoint to summarize a conversation and pass the compact representation to subsequent agent:run requests. Compacting conversation history reduces token consumption and helps conversations stay within the model context window.
You can now use the AlloyDB Columnar Engine as a read-optimized, in-memory cache for HNSW vector indexes
You can now use the AlloyDB Columnar Engine as a read-optimized, in-memory cache for HNSW vector indexes. This feature is generally available ( GA ). It accelerates vector search performance and increases queries per second (QPS) for vector workloads. For more information, see Accelerate queries with the Columnar Engine .
More from CircleCIEvery CircleCI release →
Xcode 27.1 Beta 1 Available
The Xcode 27.1 Beta 1 image is now available to be used in CircleCI pipelines. The full manifest of installed software can be found here .
Native GitHub Actions YAML Workflow Support , Preview
Native GitHub Actions YAML Workflow Support , Open Preview CircleCI now supports running GitHub Actions YAML-defined workflows directly on CircleCI compute. This is an open preview release. Some GitHub Actions features are not yet supported, and Linux runners are currently the only supported execution environment.
Deprecation: Bitbucket Data Center Support Effective October 1, 2026
CircleCI will end support for Bitbucket Data Center (BBDC) as a VCS integration on October 1, 2026. Reason for change: BBDC adoption has remained minimal, and Atlassian’s recent licensing changes indicate reduced long-term commitment to the Data Center product line.
Xcode 27.2 beta Available
The Xcode 27.2 beta image is now available to be used in CircleCI pipelines. The full manifest of installed software can be found here .
Machine Runner Orchestrator Release 1.0.0
New Machine Runner Orchestrator (previously Runner Provisioner), which automatically scales self-hosted machine runner VMs to match CI demand, is now generally available (GA).
Xcode 27.0 Available
The Xcode 27.0 image is now available to be used in CircleCI pipelines. The full manifest of installed software can be found here .
CircleCI is now available on Cursor Origin, in beta
CircleCI now integrates with Cursor Origin in beta, on CircleCI Cloud. Connect an Origin repository and your existing .circleci/config.yml runs unchanged - pipelines trigger on push and pull request, with status reported back to the Origin PR.
Hosted MCP server now available
CircleCI now hosts an MCP server at https://mcp.circleci.com/v1/mcp . Point your AI assistant at that URL, sign in with OAuth2, and it can read and act on your CI. There is nothing to install and nothing to keep up to date , every client hits the same endpoint, and new tools appear the moment we ship them.