The question appears as a comment on WebSphere Application Server V6.1 Announced. IBM_RAD_Customer asks:
I can't use RAD 6.0 to build applications for Websphere Application Server 6.1
Is IBM going to release Rational Application Developer 6.1?
Is RAD 6.1 available now?
Yes, RAD 6.0 does not know how to develop code for the new features in WAS 6.1, such as the new Java language features in J2SE 5.0. To develop code for those features, you'll need to use the Application Server Toolkit (InfoCenter), which is included with the WAS 6.1 install.
The latest version of RAD is
My personal opinion (because I use our products too): I wish we (IBM) would have a corresponding WSAD/RAD release for each new WAS release. We had that for 5.0, 5.1, and 6.0, which really helped development teams upgrade their environments and hit the ground running with the latest releases. But there is apparently no RAD 6.1 to go with WAS 6.1. If you wish we had RAD 6.1 so you could buy it, that's a missed sales opportunity for us, one that you might want to communicate to your IBM WebSphere/Rational salesperson, whom I'm sure will be glad to communicate this back to Rational's marketing along with actual customer names and estimates of missed sales.