> 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/8.3-eol/cortex-xdr-agent-8.3-release-information/addressed-issues-in-cortex-xdr-agent-8.3/cortex-xdr-agent-8.3.1-addressed-issues.md).

# Cortex XDR Agent 8.3.1 Addressed Issues

The following issues were resolved in this 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 recognized the real-time 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 seen as an upgrade.                     |
| CPATR-23265                        | 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-22565</p><p>(Windows)</p> | Improvement made to the Cortex XDR agent security and stability posture.                                                                                                                                        |
| CPATR-20233                        | Fixed an issue to ensure that an interrupted scheduled scan will resume scanning as close to the scheduled timeframe as possible.                                                                               |


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