The table summarizes features that have changed in Version 4.0, with respect to earlier versions. See also the article about transitioning to Version 4.0.
Previous function | Version 4.0.x function |
Policy-based authorization | J2EE roles-based authorization |
JavaServer Pages (JSP) V0.91 | JavaServer Pages (JSP) V1.1 (JSP V1.0 spec compatible) |
Support for EJB V1.0 | Support for EJB V1.1 |
Servlet 2.1 | Servlet 2.2 |
ServiceInitializer interface | CustomService Support |
Connection Manager V2.0 | WebSphere Connection pooling |
UNIX native install | Java-based install including "silent" installation |
OSE Remote Support for remote request invocation | HTTP Transport Support. See also: transport administration |
Servlet Redirector Support for remote request invocation | HTTP Transport Support. See also: transport administration |
com.ibm.ejs.ns.jndi.CNInitialContextFactory (1) | com.ibm.websphere.naming.WsnInitialContextFactory |
XML parser XML4J V2.0.15 | XML parser XML4J V3.1.1 |
Support for .servlet (1) | Servlet Extensions (bundled in the .war file) |
(1) Supported for this release, new function is available now and going forward in follow-on releases.
(2) Limited availability and not supported in prior release, replacement is fully supported.
Also, InstantDB is a light-weight database provided for use by WebSphere samples only. Use of InstantDB for creation and deployment of CMP beans or persistence is not supported.