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    PAN-OS 9.1 Release Information
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    PAN-OS 9.1 Release Information

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    End-of-Life (EoL)

    PAN-OS 9.1 Release Information

    PAN-OS® 9.1 new features, changes to default behavior, and known issues.
    Revision Date: May 23, 2024
    Review important information about Palo Alto Networks PAN-OS® 9.1 software, including new features introduced and a list of known issues, workarounds for open issues, and issues that are addressed in the PAN-OS 9.1 releases. For installation, upgrade, and downgrade instructions, refer to the PAN-OS New Features Guide.

    © 2025 Palo Alto Networks, Inc. All rights reserved.

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