> ## Documentation Index
> Fetch the complete documentation index at: https://docs.arc.cdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# April 2026 (26.1.9515)

> Release notes for CData Arc April 2026 (build 26.1.9515).

## Overview

Watch this video to see a summary of what's new in this release:

[https://www.youtube.com/embed/95DjPDF0mL4](https://www.youtube.com/embed/95DjPDF0mL4)

## Key Features

### Added

* Added [Git Version Control](https://docs.arc.cdata.com/26.4/self-hosted/en/getting-started/administration/git-version-control.md) support to enable versioning of Arc configurations through integration with Git repositories. This Enterprise-only feature allows teams to track changes, collaborate on configurations, and synchronize settings across environments.
* Added [Tamper Evident Logging](https://docs.arc.cdata.com/26.4/self-hosted/en/getting-started/administration/activity.md#tamper-evident-logging) to provide cryptographic verification that audit logs have not been modified, ensuring audit trail integrity for compliance requirements.
* Added dynamic EDI partner relationship tracking for EDI connectors to better manage and visualize trading partner connections.
* Added the ability to [download and update CData drivers](https://docs.arc.cdata.com/26.4/self-hosted/en/getting-started/administration/settings/connections.md) directly from within the application, simplifying the process of keeping drivers current.
* Added *exportDataEncryptionKey* and *importDataEncryptionKey* actions to the [Admin API](../../admin-api) to facilitate secure key transfer between environments when setting up Git Version Control.
* Added a Connectors view in the [Flows](../../flows) page to provide an alternative way to browse and manage connectors across workspaces. The legacy connectors.rst endpoint is now deprecated and will be removed in a future release.
* Added binary I/O support for the [Flow API](https://docs.arc.cdata.com/26.4/self-hosted/en/flows/flow-api.md), enabling direct handling of binary data in API requests and responses.
* Added support for the [Workspace Send](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/workspace-send.md) connector in Flow API configurations.
* Added Tracked Headers support in [Reports](https://docs.arc.cdata.com/26.4/self-hosted/en/getting-started/administration/reports.md) with a redesigned user interface for easier configuration and visualization.
* Added the ability to preview common file types (EDI, CSV, IDoc, etc.) in a "print view" in the UI, as opposed to the raw file contents.
* Added a global option to disable [SLA](https://docs.arc.cdata.com/26.4/self-hosted/en/getting-started/administration/activity.md#slas-tab) alerts.
* Added support for additional LLM providers including Gemini, Deepseek, and Ollama Cloud for AI-powered features.
* Added a *requeueMessage* action to the [Admin API](../../admin-api) for reprocessing messages.

### Changed

* Improved the way Arc encrypts sensitive values. This is enabled by default for all new installations, as well as existing Java installations that do not already have an arc.properties file. Users of Arc that do not meet this criteria should review [this page](https://docs.arc.cdata.com/26.4/self-hosted/en/getting-started/installation/custom-master-key.md) to learn how to opt-in.
* Updated the embedded Jetty web server to version 12.0.29 for improved security and performance.
* Simplified the procedure for running endpoint-only versions of Arc. As a result, the Cross-Platform Edition no longer ships with services.war. It can be generated from arc.jar, as documented [here](https://docs.arc.cdata.com/26.4/self-hosted/en/getting-started/administration/split-plane-deployment.md#setting-up-the-endpoint-only-application-2).
* The Cross-Platform Edition's arc.war now requires Java 17 or above to run. As a result, traditional WebSphere is no longer supported. Use [WebSphere Liberty](https://docs.arc.cdata.com/26.4/self-hosted/en/getting-started/installation/cross-platform-edition.md#configuration-in-websphere-liberty) instead.
* Improved the application health check routine to check available inodes on Linux systems.
* Changed the default value of the **HTTP Forwarded Header** setting to be empty to prevent spoofing attacks in environments where it is not required.
* Removed the limitations around the number of roles that can be associated with a user, and the number of policies that can be associated with a role.
* Added the ability to specify CC email addresses for the [appSendEmail](https://docs.arc.cdata.com/26.4/self-hosted/en/scripting/operations/op-app-send-email.md) operation.
* Improved report emails to more closely mirror the report that is displayed in the UI.
* Improved the performance for all incoming HTTP requests, especially for the Flow API.
* All CData drivers have been updated to v25.

### Fixed

* Improved the handling of IPv6 addresses when auto-generating Base Url.
* Improved the cleanup routine to better handle very large volumes of files, especially when archiving to S3.
* Updated the JRE that ships with the Cross-Platform Edition to resolve security vulnerabilities.
* Updated the Redis driver to improve performance and fix memory leaks that could occur in some situations.
* Resolved an issue preventing [sysExecute](https://docs.arc.cdata.com/26.4/self-hosted/en/scripting/operations/op-sys-execute.md) from capturing script output during high-concurrency scenarios.

## Connectors

### Added

* Added an [AI Connector](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/ai.md) for integrating with AI models.
* Added the ability to set and preserve cookies in the [REST](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/rest.md) connector.
* Added the ability to override AI prompts in the mapping editor for customizing AI-assisted mapping behavior.
* Added a new UI for uploading test files in connectors that support it: [CSV](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/csv.md), [TSV](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/tsv.md), [PSV](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/psv.md).
* Added support for Local File Scheme to the [ZUGFeRD](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/zugferd.md) connector.
* Added MessageKeys support to the [Apache Kafka](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/apachekafka.md) connector for better message routing and partitioning control.
* Added a **Follow Authorization Header** setting to the [REST](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/rest.md) connector for controlling how authorization headers are handled during redirects.
* Added a **TLS Enabled Protocols** setting for the [Email Send](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/email-send.md), [Email Receive](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/email-receive.md) and [MQTT](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/mqtt.md) connectors.
* Added a **Propagate Merged Cell Values** setting to the Advanced tab of the [Excel](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/excel.md) connector.

### Changed

* The [ICAP](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/icap.md) connector has moved out of Beta into Full release status.
* The [AS3](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/as3.md), [Batch Create](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/batch-create.md), [Batch Split](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/batch-split.md), [Box](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/box.md), [Copy](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/copy.md), [CSV](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/csv.md), [Dropbox](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/dropbox.md), [Google Drive](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/google-drive.md), [Google Storage](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/google-storage.md), [JSON](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/json.md), [OneDrive](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/onedrive.md), [PIP](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/pip.md), [PSV](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/psv.md), [RNIF](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/rnif.md), [S3](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/s3.md), [Schedule](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/schedule.md), [Split](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/split.md), [TSV](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/tsv.md), and [WebDAV](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/webdav.md) connectors were all updated to a new UI design.
* [FTP](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/ftp.md) connectors now require the size of downloaded files to be no greater than 3x the size reported by the file listing by default.
* Improved the logging for the [SFTP Server](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/sftp-server.md) connector to recognize repeated log events and aggregates them into a single message.
* Improved logging for OAuth based connections.
* Improved the UI for the [Script](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/script.md) connector to better reflect the inputs that are available according to the selected Action.
* Improved the UI for the [Script](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/script.md) connector to inject an [arc:push](https://docs.arc.cdata.com/26.4/self-hosted/en/scripting/keyword-reference/op-arc-push.md) keyword when an output attribute is clicked if none are already present.
* Improved the UI for the [REST](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/rest.md) connector to remember previously used Swagger URLs.
* Previously deprecated Shopify schemas have now been removed from the [Shopify](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/shopify/shopify.md) connector.
* The [Amazon Marketplace](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/amazon-marketplace/amazon-marketplace.md) connector's Update Inventory, Submit Vendor Order Acknowledgement, Submit Vendor Shipment Confirmations, and Submit Vendor Payments actions now require the Vendor Central schema.

### Fixed

* The [PSV](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/psv.md) connector appropriately respects the Force Cell Delimiter setting.
* Fixed an issue in [CSV Map](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/map.md) preventing Code View from displaying properly for some legacy configurations migrated from older versions.
* Fixed an issue in the [REST](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/rest.md) connector preventing the connector from promoting response headers if **Output Behavior** is set to Input Message.
* Fixed the [XML Map](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/xml-map/xml-map.md) connector to use the output message when evaluating macros in **Local File Scheme**.
* Fixed the [JSON](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/json.md) connector to validate that number types are actually numbers.
* Fixed an issue preventing the `_message` item from being available in custom events provided by the [REST](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/rest.md), [Webhook](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/webhook.md), and [TCP Server](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/tcp-server.md) connectors.
* Fixed an issue preventing the `_message` item from being available in the [SOAP](https://docs.arc.cdata.com/26.4/self-hosted/en/connectors/soap.md) connector's **Service Endpoint** setting.


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