I hesitated about raising such question in here. But I can't get any response from PDT project even if filing critical bug for it.
PDT team announced PDT 3.1 was released with Juno simultaneous release. PDT 3.1 also is listed in highlighted Juno project
list. But none of Eclipse users knows how to install it.
I would like to believe it's just a bug, however nobody of PDT project takes action for it. In my understanding all projects of Eclipse.org are open source, everybody can browse the latest source code even under developing. I'm astonished that I can't find any commit related to PDT 3.1 from its source repository. Looks like PDT 3.1 doesn't have any public nightly build and integration build. I only find a build for 3.0 in Hudson.
I'm wondering whether Eclipse.org/EPL allows a project under it that is not really open source and just declared its new release. Hope experienced people help resolve my doubts.