Supported Upgrade Paths and Strategies
Your upgrade plan depends on the Java ES release you wish to upgrade to Release 5. Java ES installer only support upgrade from Java ES 2005Q4 (Release 4). The following table describes the different upgrade paths to Release 5, their characteristics, and the upgrade strategies to be used in performing the upgrade.
Table 1–6 Upgrade Paths and Strategies|
Release |
Java ES Release |
System Characteristics |
Upgrade Strategies |
|---|---|---|---|
|
2005Q4 |
Release 4 |
Java ES 5 supports a mixture of Release 4 and Release 5 product components on a single computer.
Interoperability between Release 4 and Release 5 product components has been tested, and known interface incompatibilities are noted in the Sun Java Enterprise System 5 Release Notes for Microsoft Windows. |
The coexistence of Release 4 and Release 5 product components provides for the possibility of selectively upgrading Release 4 product components to Release 5 on a single computer or within a deployment architecture consisting of multiple computers. Release 5 installer automatically installs all required shared components. |
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