Releasesby IbisIntroducing Gen2 Arm Resource Classes (Beta)
BetayesterdayUnverifiedAdded Oct 14, 2026
Gen2 Arm resource classes for Docker and Linux VM / Remote Docker are now available in Beta on CircleCI, delivering priority access to newer-generation Arm CPUs that are up to 94% faster than gen1 for your Linux workloads, at a lower credit cost.
Topics: Pricing, Performance
More CircleCI releases
Every CircleCI releaseSmarter Testing is now generally available
Smarter Testing is now generally available for all Cloud customers. Since beta, teams have used test impact analysis, dynamic test splitting, and automatic rerun of failed tests to run fewer tests, run them faster, and get signal sooner, while maintaining full confidence. What’s included Smarter Testing is a comprehensive set of testing capabilities.
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The Xcode 27.1 image is now available to be used in CircleCI pipelines. The full manifest of installed software can be found here .
Machine Runner Orchestrator Release 1.0.1
New Run runner VMs on spot nodes to cut compute costs, without failing jobs when a node is reclaimed. Set runner.enableUnsafeRetries on a resource class, and a job that is still running when its VM shuts down is retried on another VM instead of failing. The job restarts from the beginning, so only enable it for jobs that are safe to run more than once.
Runner Release 3.1.13
Machine Runner: Run machine runners on spot or preemptible instances to cut compute costs, without failing jobs when an instance is reclaimed. With the new runner.enable_unsafe_retries option, a job that is still running when the runner receives SIGINT , SIGTERM or SIGHUP is retried on another runner instead of failing.
The CircleCI plugin for JetBrains IDEs: watch, debug and manage your runs without leaving the IDE
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Teardown now available for run steps
For customers needing cleanup work to run no matter how a job ends, we now support teardown steps. Add a teardown list to any run step, and CircleCI runs those steps at the end of the job, including when the job fails, is canceled, or times out.
Approve or cancel on-hold jobs directly from Slack
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Deprecation of v1 and v1.1 Trigger and Rerun APIs, February 1, 2027
CircleCI is retiring 10 legacy v1 and v1.1 API endpoints used to trigger and rerun builds. They will be removed on February 1, 2027. This extends the date previously communicated by email (November 1, 2026). After that date, requests to these endpoints return HTTP 410 Gone.
Also shipped on Oct 13, 2026
CircleCI in October 2026What's included:
- Three training methods: Supervised fine-tuning (SFT) , direct preference optimization (DPO) , and reinforcement learning with group relative policy optimization (GRPO) . Each method trains a low-rank adapter (LoRA) or the full model weights. Custom loss functions : Train with any objective you compute in PyTorch from the model's log-probabilities.
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