> ## 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).

export const companyName = "CData";

export const siteNameShort = "Arc";

export const siteName = "CData Arc";

## Overview

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

<iframe width="560" height="315" src="https://www.youtube.com/embed/95DjPDF0mL4" frameborder="0" allowfullscreen />

## Key Features

### Added

* Added [Git Version Control](../installation/git-version-control) support to enable versioning of {siteNameShort} 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](../administration/activity#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](../administration/settings/connections) 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](../../flows/flow-api), enabling direct handling of binary data in API requests and responses.
* Added support for the [Workspace Send](../../connectors/workspace-send) connector in Flow API configurations.
* Added Tracked Headers support in [Reports](../administration/reports) 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](../administration/activity#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 {siteNameShort} 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 {siteNameShort} that do not meet this criteria should review [this page](../installation/custom-master-key) 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 {siteNameShort}. As a result, the Cross-Platform Edition no longer ships with services.war. It can be generated from arc.jar, as documented [here](../administration/split-plane-deployment#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](../installation/cross-platform-edition#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](../../scripting/operations/op-app-send-email) 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](../../scripting/operations/op-sys-execute) from capturing script output during high-concurrency scenarios.

## Connectors

### Added

* Added an [AI Connector](../../connectors/ai) for integrating with AI models.
* Added the ability to set and preserve cookies in the [REST](../../connectors/rest) 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](../../connectors/csv), [TSV](../../connectors/tsv), [PSV](../../connectors/psv).
* Added support for Local File Scheme to the [ZUGFeRD](../../connectors/zugferd) connector.
* Added MessageKeys support to the [Apache Kafka](../../connectors/apachekafka) connector for better message routing and partitioning control.
* Added a **Follow Authorization Header** setting to the [REST](../../connectors/rest) connector for controlling how authorization headers are handled during redirects.
* Added a **TLS Enabled Protocols** setting for the [Email Send](../../connectors/email-send), [Email Receive](../../connectors/email-receive) and [MQTT](../../connectors/mqtt) connectors.
* Added a **Propagate Merged Cell Values** setting to the Advanced tab of the [Excel](../../connectors/excel) connector.

### Changed

* The [ICAP](../../connectors/icap) connector has moved out of Beta into Full release status.
* The [AS3](../../connectors/as3), [Batch Create](../../connectors/batch-create), [Batch Split](../../connectors/batch-split), [Box](../../connectors/box), [Copy](../../connectors/copy), [CSV](../../connectors/csv), [Dropbox](../../connectors/dropbox), [Google Drive](../../connectors/google-drive), [Google Storage](../../connectors/google-storage), [JSON](../../connectors/json), [OneDrive](../../connectors/onedrive), [PIP](../../connectors/pip), [PSV](../../connectors/psv), [RNIF](../../connectors/rnif), [S3](../../connectors/s3), [Schedule](../../connectors/schedule), [Split](../../connectors/split), [TSV](../../connectors/tsv), and [WebDAV](../../connectors/webdav) connectors were all updated to a new UI design.
* [FTP](../../connectors/ftp) 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](../../connectors/sftp-server) 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](../../connectors/script) connector to better reflect the inputs that are available according to the selected Action.
* Improved the UI for the [Script](../../connectors/script) connector to inject an [arc:push](../../scripting/keyword-reference/op-arc-push) keyword when an output attribute is clicked if none are already present.
* Improved the UI for the [REST](../../connectors/rest) connector to remember previously used Swagger URLs.
* Previously deprecated Shopify schemas have now been removed from the [Shopify](../../connectors/shopify/shopify) connector.
* The [Amazon Marketplace](../../connectors/amazon-marketplace/amazon-marketplace) 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](../../connectors/psv) connector appropriately respects the Force Cell Delimiter setting.
* Fixed an issue in [CSV Map](../../connectors/map) preventing Code View from displaying properly for some legacy configurations migrated from older versions.
* Fixed an issue in the [REST](../../connectors/rest) connector preventing the connector from promoting response headers if **Output Behavior** is set to Input Message.
* Fixed the [XML Map](../../connectors/xml-map/xml-map) connector to use the output message when evaluating macros in **Local File Scheme**.
* Fixed the [JSON](../../connectors/json) 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](../../connectors/rest), [Webhook](../../connectors/webhook), and [TCP Server](../../connectors/tcp-server) connectors.
* Fixed an issue preventing the `_message` item from being available in the [SOAP](../../connectors/soap) connector's **Service Endpoint** setting.