RAD has a feature called the Product Updater which finds and installs the latest patches. To run it, from the main menu, select Help > Software Updates > IBM Rational Product Updater. It runs in a separate window and JVM. The first tab, Installed Products, shows what you've got now. The second tab, Updates, shows what's available to install. For example, mine shows that 126.96.36.199 and Interim Fix 002 are available. If you select an update, the Detailed Information pane shows what's in the update.
IBM Rational Product Updater
You can also download and install patches manually, which is necessary if you're running RAD on a machine that doesn't have an Internet connection. Unfortunately, there doesn't seem to be a master "Recommended Updates" document for RAD like there is for WebSphere Application Server, so it's a little more of a challenge to keep up with the latest patches. Two good places to look are the RAD support page and the Rational Developer V6 products page on developerWorks.
Here are the latest patches (currently):
- IBM Rational Application Developer Version 188.8.131.52 (Reference #4009346)
- Interim Fix 001 for Rational Application Developer V184.108.40.206 (Reference #4009578)
- Interim Fix 002 for Rational Application Developer V220.127.116.11 (Reference #4009705)