The main landing pages for Palo Alto Networks PAN-OS 11 release notes can be found on the Palo Alto Networks Technical Documentation Portal
Before you upgrade, we highly recommend reviewing the official technical documentation to understand the hardware requirements and addressed issues:
Based on the official release notes (PanOS 11.0.0 through 11.0.2-h2), here are the three most impactful bugs to watch for:
Palo Alto Networks has released several iterations of PAN-OS 11, including major versions 11.0 (codenamed "Nova"), 11.1, and 11.2, each introducing significant security and management enhancements. Quick Access Links to Release Notes
Customer Support Portal
Palo Alto Networks does not keep release notes on a static public HTML page. Instead, they host all official documentation on their and Documentation Site .
some older hardware models have reached End-of-Life (EOL)
PAN-OS 11.0 is supported on a wide range of hardware (PA-Series appliances) and virtual firewalls (VM-Series). However, and do not support PAN-OS 11.0. It is critical to check the "PAN-OS 11.0 Hardware Compatibility" matrix included in the notes.