PAN-OS 7.1.9-h4 Addressed Issues
The following table lists the issues that are addressed in the PAN-OS® 7.1.9-h4 release. For new features, associated software versions, known issues, and changes in default behavior, see PAN-OS 7.1 Release Information. Before you upgrade or downgrade to this release, review the information in Upgrade to PAN-OS 7.1.
Issue ID Description
PAN-81061 Fixed an issue where PA-3000 Series firewalls dropped long-lived sessions that were active during a content update followed immediately by an Antivirus or WildFire update.
PAN-75881 Fixed an issue where a regression introduced in PAN-OS 7.1.9 caused the firewall dataplane to restart in certain cases when combined with content updates. For details, including the relevance of content release version 709, refer to the associated Customer Advisory.

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