Migrating API and specifications
Migrating application programming interfaces (APIs) and specifications involves moving to the current Java™ component level as well as to other technologies that WebSphere® Application Server Version 8.5 supports. If your existing applications currently support different specification levels than are supported by this version of the product, it is likely that you must update at least some aspects of the applications to comply with the new specifications.
This topic is about configuration migration, such as migrating deployment managers and federated nodes in a network deployment environment. The Application Migration Toolkit for WebSphere Application Server provides support for migrating applications from previous versions of WebSphere Application Server to the latest product version. For information about migrating applications, read more about the Migration Toolkit.
In many cases, IBM® provides additional features and customization options that extend the specification level even further. If your existing applications use IBM extensions from earlier product versions, it might be necessary for you to perform mandatory or optional migration to use the same kinds of extensions in Version 8.5.
WebSphere Application Server Version 8.5 supports Java SE Development Kit (JDK) 7.
See Specifications and API documentation for a summary of the specifications and API documentation supported in current and prior product releases.
For more information on the items deprecated in WebSphere Application Server Version 8.5, see Deprecated, stabilized, and removed features.