> 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/8.x/8.4-eol/cortex-xdr-agent-8.4-release-information/addressed-issues-in-cortex-xdr-agent-8.4/cortex-xdr-agent-8.4.0-addressed-issues.md).

# Cortex XDR agent 8.4.0 addressed issues

The following issues were addressed in the Cortex XDR agent 8.4 release.

| Issue                              | Description                                                                                                                                                                                             |
| ---------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <p>CPATR-23540</p><p>(Linux)</p>   | Fixed an issue that may prevent agents upgrading through P2P on Linux.                                                                                                                                  |
| <p>CPATR-23516</p><p>(Windows)</p> | Improvement made to the Cortex XDR agent security and stability posture.                                                                                                                                |
| <p>CPATR-23499</p><p>(Windows)</p> | Fixed an issue where a short time lapse may have been encountered, in certain VPN solutions, before endpoint management recognizes the protection status of the XDR agent after the machine boots up.   |
| <p>CPATR-23443</p><p>(Windows)</p> | Fixed a compatibility issue with 3-party applications and Cytray.exe                                                                                                                                    |
| <p>CPATR-23360</p><p>(Linux)</p>   | Fixed an issue that may be encountered when running a clean installation with a package manager on a specific system configuration, where the clean installation may be incorrectly seen as an upgrade. |
| CPATR-23360                        | Fixed an issue so that files with special characters in the filename may be deleted with the destroy command.                                                                                           |
| CPATR-23053                        | Fixed an issue that may prevent agents from connecting when DNS resolution encounters high latency.                                                                                                     |
| <p>CPATR-22985</p><p>(Windows)</p> | Fixed an issue that may occur in rare cases when initiating an upgrade.                                                                                                                                 |
| CPATR-22317                        | Fixed an issue that may be encountered with scheduled scan times after daylight saving time changes.                                                                                                    |
| <p>CPATR-22103</p><p>(Linux)</p>   | Fixed an issue that may occur when using an unprivileged user for sandbox in Kubernetes environments.                                                                                                   |
| CPATR-21955                        | Fixed an issue to increase the agent stability.                                                                                                                                                         |
| CPATR-21703                        | Fixed an issue to improve character recognition and handling in the command execution script.                                                                                                           |
| <p>CPATR-20826</p><p>(Linux)</p>   | Reduction and cleanup of repeating logs.                                                                                                                                                                |
| <p>CPATR-20245</p><p>(Windows)</p> | Fixed an issue to improve hostname resolving in some network events.                                                                                                                                    |
| CPATR-20233                        | Fixed an issue to ensure that an interrupted scheduled scan will resume scanning as close to the scheduled timeframe as possible.                                                                       |
| <p>CPATR-19295</p><p>(Windows)</p> | Fixed an issue that may cause the agent to stop consuming events from Microsoft Windows Security Auditing after an upgrade or a fresh installation without a machine reboot.                            |


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