Upgrading from a Package-Based Distribution of Web Proxy Server 4.x

To upgrade from the package-based distribution of Web Proxy Server 4.0.1 (in Java ES 2005Q4), 4.0.4 (in Java ES 5) or 4.0.5 (in Java ES 5 Update 1) to version 4.0.11, apply the patches for the appropriate platform, as described in Upgrade Support in Sun Java System Web Proxy Server 4.0.11 Release Notes.

Note that the upgraded installation is not exactly equivalent to installing the file-based ZIP distribution of version 4.0.11 because it represents a package-based upgrade, not a file-based installation.