I use Eclipse everyday and the ability to use it for multiple languages is crucial. Perl is one of the languages I use and there is an excellent plugin for it: EPIC. However, after installing the recently released Ganymede (3.4) release I couldn't install it.There are multiple versions of Eclipse available to download, typically I pick Classic. However, EPIC will not install on to this version. I found using Eclipse IDE for Java Developers worked fine. Hopefully any other plugins you use won't mind you using this version!
