Cisco Cisco Web Security Appliance S370 Release Notes

If the Web Security appliance currently uses IronPort URL Filters, we advise you to migrate to Cisco 
IronPort Web Usage Controls. To migrate, you must first obtain a license key for it before upgrading 
to the current version. If you do not yet have a license for Cisco IronPort Web Usage Controls, contact 
your Cisco sales representative or reseller. After migrating and upgrading, you might need to edit 
existing policies to use the new URL categories as necessary. 

For more information on migrating and obtaining a license, read the following announcement:

http://www.cisco.com/web/ironport/docs/IronPort_URL_Filtering_EoL.pdf

When you upgrade from a version of AsyncOS for Web before version 7.1, all historical data stored on 
the Web Security appliance for the on-box reports will be erased. To retain this historical data, you must 
export each report to PDF before upgrading.

Verify you read the list of known issues and limitations before you upgrade AsyncOS for Web. For a list 
of all known issues, see 

Cisco IronPort does not generally support the backward compatibility of configuration files with 
previous major releases. Minor release support is provided. Configuration files from previous versions 
may work with later releases, however, they may require modification to load. Check with Cisco IronPort 
Customer Support if you have any questions about configuration file support.

Features on AsyncOS 7.5.1 for Web are only supported by AsyncOS for Security Management version 
7.9.1 and above.

This section describes changes in behavior from previous versions of AsyncOS for Web that may affect 
the appliance configuration after you upgrade to the latest version.

You can now disable Webroot body scanning using the advancedproxyconfig scanning subcommand.

Defect: 81661