> For the complete documentation index, see [llms.txt](https://docs.coherent.global/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coherent.global/whats-new.md).

# What's new?

| UAT release     | Production release |
| --------------- | ------------------ |
| August 24, 2026 | September 7, 2026  |

Expired API keys have a talent for surfacing at the worst possible moment. Spark now nudges you before a key expires, so renewals happen on your schedule instead of production's.

Plus, Coherent MCP is here. AI agents can now call the same Spark services your systems already trust.

## Notifications for API key expiry

Don't get caught out by expired API keys again!

We have a new configuration that will send a reminder when an API key is within `1`, `14`, `30` days of its expiry date. To receive these reminders, enable this in the refreshed [Tenant configuration](/tenant-administration/tenant-configuration.md).

<figure><img src="https://2714190325-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fc7fek1ZgAUH5MA3m5pH8%2Fuploads%2F1lsrWoC1YVvZ8KVEWsAk%2FScreenshot%202026-08-12%20112432.png?alt=media&amp;token=1bcfda34-4ccf-4b56-b11d-73e9ab1d7f76" alt="Enable notifications for API key expiration"><figcaption></figcaption></figure>

## More customization for API call downloads

When downloading a large volume of API calls, we have added some new customization options to limit the amount of data to download in order to reduce file sizes and improve performance.

* Metadata only download.
* Choose to keep only inputs or outputs depending on the use case.
* Select only particular outputs to include in the download.

<figure><img src="https://2714190325-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fc7fek1ZgAUH5MA3m5pH8%2Fuploads%2FYW7l5JXssKfCCGJf3aIa%2FScreenshot%202026-08-12%20122721.png?alt=media&amp;token=e08d37cc-a87a-4ba3-8282-6a3a77bae75b" alt="Download API calls"><figcaption></figcaption></figure>

## Notable Enhancements

* [Coherent Assistant](https://docs.coherent.global/assistant/) Solver feature is more aligned to the [Neuron](/build-spark-services/neuron.md) [Solve functions (Xsolve)](/build-spark-services/additional-mappings/solve-functions-xsolve.md) algorithms.
* [Coherent Assistant](https://docs.coherent.global/assistant/) Testbed feature will also automatically calculate any [Solve functions (Xsolve)](/build-spark-services/additional-mappings/solve-functions-xsolve.md) present within the workbook for more complete testing comparisons between Excel and Spark results.
* [Coherent Assistant](https://docs.coherent.global/assistant/) the previous interactive "Compare" feature is now called "Diff". The "Compare" feature performs a comparison and returns an Excel file similar to the Version Overview.
* [Options](/navigation/options.md#folder-categories) management interface has been improved and categories can now be reordered.
* [Model Context Protocol (MCP)](/integrations/model-context-protocol-mcp.md): additional tools for API Call History Download as Excel, API Call History Download all as Excel, Testing Center Randomized test case generation, Version Overview Compare.
* [Broken mention](broken://pages/ux2499Kp4BmGTS9oWD1f) API enhancements for query parameter filters.
* [Testing Center](/navigation/testing-center.md) testbed results comparison can be limited to a subset of outputs.
* [Tenant configuration](/tenant-administration/tenant-configuration.md) features permissions now use a dropdown menu for setting permissible user groups rather than free text.
* [Version Overview](/navigation/version-overview.md) service version comparison can now be done in "reverse" order.
* Security patch updates to address vulnerabilities, ensuring enhanced protection and stability of our systems.

#### A Note for [Transforms APIs](/spark-apis/transforms-api.md) users

Please review the [scheduled updates](/spark-apis/transforms-api/update-roadmap.md) to the JSON and XML parsing packages. Updates to dependent packages may take place on short notice for any vulnerability fixes.

{% hint style="warning" %}
The commonly used [JSONata](https://jsonata.org/) package in the [JSONtransforms](/spark-apis/transforms-api/jsontransforms.md) will have a major update in the September release.
{% endhint %}

## Coherent MCP is here: your Spark services, callable by AI agents

When an AI agent needs a premium, a projection, or an eligibility decision, "the language model worked it out" doesn't survive review. Coherent MCP gives agents a defensible answer: your own Spark services, exposed as tools that MCP-compatible AI clients like Claude, Cursor, and VS Code can discover and call. The AI agent handles intent and inputs; Spark executes your published logic deterministically, under the tenant permissions you already have in place.

Execution is just the start. Through Testing Center, AI agents can run testbeds, monitor them to completion, and compare result sets, so regression evidence is something you can generate mid-conversation.

Read the full post for the architecture, the tools exposed today, and when to reach for MCP over the REST API.

{% embed url="<https://www.coherent.global/blog/coherent-mcp-connects-ai-agents-to-governed-spark-calculations>" %}

## Version number

`v8.60.2`