Follow these steps if the product has not been previously installed in this instance of Eclipse/IDE.
In Eclipse, click Help > Install New Software...
Get the update site location from the product download page.
On the download page, right-click on the Update Site URL button and
copy the link location to your clipboard.
Click on the product you wish to install to go to the download page:
Follow these steps if the product has been previously installed in this instance of Eclipse using the update site and you just want to update to get the latest build.
In Eclipse, click Help > Check for Updates...
If updates are available, a dialog comes up asking for confirmation. Click Next then Finish to continue.
When prompted to restart Eclipse, click Yes to restart.