This update site contains the following CDT releases for Helios based Eclipse. The Ecilpse Platform Runtime Binary version 3.6 is the minimum required runtime to run CDT 7.0.x.
To download, enter this URL into the Available Software Sites section of the Install New Software dialog in Eclipse. the CDT features.
The CDT master p2 repository archive is available for each release as well. Download the zip file and enter the path to it as an archive in the Install New Software dialog in Ecilpse. Please note that unzipping the master zip file into the eclipse directory will not install CDT properly.