Ive seen references to Pluto 1.0.x and 1.1x. What are versions 1.x used for?
Pluto 1.0.x is based off of the code base which was originally donated to the ASF by IBM. The first release candidate in this series was published on October 8, 2004. Pluto 1.0.x is only maintained for bug fixes. Pluto 1.0.1 is the portlet container embedded in all Jetspeed release up until version 2.2.0. From version 2.2.0 onward, Jetspeed embeds Pluto 2.0.x. The 1.1.x series is a refactoring/rewrite of Pluto 1.0.x. It’s entire purpose is to simplify the container and make it easier for both Portlet Developers and Portal Developers looking to embed Pluto into their portal to use Pluto. Now that Pluto 2.0.0 has been released, our team highly recommends that you migrate to it. Pluto 1.0.x development has been stagnant for some time and there are no plans to support it in the future.