I am working on a project in eclipse Juno. And I see that Eclipse has a latest version as Luna. Can I directly Shift my Juno Project to Luna.? or do I have to make some changes.?
This depends on how large your project is, and how many technologies it uses.
I did this for an enterprise project, and the steps were pretty straightforward:
If all is okay, then switch JDK7 to JDK8, and change the workspace compiler to 1.8