It won't matter much for the parts of Eclipse that we use, though it is nice to match the version we have in the labs.
To use Eclipse, you will make a "workspace". A workspace made in a newer version of Eclipse cannot be opened in an older version. You will be able to copy the program file (ie. .java file) from a project on your laptop, however, and import it into a project in a workspace for the version of Eclipse on a lab computer.
The terms workspace and project will make more sense after Lab1.