> 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/release-history/2026-07.md).

# 2026-07

| UAT release   | Production release |
| ------------- | ------------------ |
| July 27, 2026 | August 10, 2026    |

We've got a helpful safeguard for you this month: Spark now checks for mapping changes when you upload an updated file, giving you an early heads-up before anything reaches your integrations.

And don't miss our latest customer spotlight and case study with Óptima Mayores, whose two-person IT team runs an entire business on Spark.

## Mapping differences highlighted on upload

When updating Spark services, Spark will inform you if the uploaded file includes new or removed mappings. This provides an additional check to the user to inform of any consequential changes to their Spark integrations and testing.​

Spark will also suggest users to choose a major version update to indicate that there are incompatible API changes. This follows [semantic versioning](https://semver.org/) guidelines.

<figure><img src="https://2714190325-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fc7fek1ZgAUH5MA3m5pH8%2Fuploads%2Fvl8bSzA1Th3808qXEnR1%2Fimage.png?alt=media&amp;token=aeb1167c-9ae1-4d28-b5fa-610c0fdd4b39" alt=""><figcaption></figcaption></figure>

## Notable Enhancements

* [Testing Center](/navigation/testing-center.md) testbed results now include expanded tables for CSV downloads.
* [Coherent Assistant](https://docs.coherent.global/assistant/) Testbed feature now supports running `Xsolve` to when making Excel-calculated testbed results. This enables verification between Excel and Spark results that include solve functions.
* [Service Documentation](/navigation/service-documentation.md) indicates last modified date including for any service versions that have been edited.
* Improvements to [Service Documentation](/navigation/service-documentation.md) and [Options](/navigation/options.md#deployment-request) screens.
* New [Neuron](/build-spark-services/neuron.md) version with formula updates.&#x20;
* 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 make 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 %}

## Version number

`v8.58.2`