Palo Alto Networks Customer Support has identified two issues with PAN-OS 4.1.5 release. The issues are noted below:
1. VPN tunnels between PAN-OS devices and Cisco ASA devices may not re-establish IPsec SA properly after upgrade to 4.1.5. VPN tunnels between PAN-OS devices are not affected.
2. For PA-5000 series customers:
If you have either of the above environments, we do not recommend installing 4.1.5 release. If you have these platforms/features enabled, we recommend 4.1.4 release at this time. A fix will be available in an upcoming release.
In case you have questions, please don’t hesitate to contact SecureLink for additional
information.