> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/xdr-agent-release-notes/9.1/cortex-xdr-agent-release-information/addressed-issues/addressed-issues-911.md).

# Addressed issues in Cortex XDR agent 9.1.1

The following issues have been resolved in this release.

| ISSUE       | PLATFORM | DESCRIPTION                                                                                                             |
| ----------- | -------- | ----------------------------------------------------------------------------------------------------------------------- |
| CPATR-36823 | Windows  | Fixed an issue to improve compatibility when using Java Web Marker.                                                     |
| CPATR-36793 | Windows  | Java module improvements                                                                                                |
| CPATR-36649 | General  | Fixed an issue where an invalid hardware ID may cause an agent installation or upgrade to fail.                         |
| CPATR-36464 | Windows  | Improvement made to the Cortex XDR agent security posture.                                                              |
| CPATR-36036 | Windows  | Improvement made to the Cortex XDR agent security posture.                                                              |
| CPATR-36015 | Windows  | Fixed an issue to improve the Cortex XDR agent stability posture.                                                       |
| CPATR-35766 | macOS    | Fixed an issue to improve the Device Control feature.                                                                   |
| CPATR-35036 | Windows  | Fixed a rare issue that may be encountered during low-memory edge cases.                                                |
| CPATR-35053 | Linux    | Fixed an issue to improve the Cortex XDR agent stability posture.                                                       |
| CPATR-33194 | Linux    | Fixed an issue that may occur in Ubuntu/Debian systems where other services inadvertently restart during agent upgrade. |
| CPATR-31582 | General  | Fixed an issue to improve performance during a malware scan.                                                            |


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://cortex-docs.paloaltonetworks.com/xdr-agent-release-notes/9.1/cortex-xdr-agent-release-information/addressed-issues/addressed-issues-911.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.