How to install Eclipse Subversive SVN Plugin

1. Adding the required update sites to the Eclipse Update/Add-On Manager Open Eclipse and navigate to Help->Software Updates...

Switch to the Available Software tab und use the Add Site... Button to the following URL's:

http://download.eclipse.org/technology/subversive/0.7/update-site/

http://www.polarion.org/projects/subversive/download/eclipse/2.0/update-site/

Note that these URL's may change over the time. Have a look at the Eclipse project site of Subversive to get fresh URL's.

2. Selecting and installing the required components The following components needs to be checked:
Subversive SVN Connectors
Subversive SVN Team Provider
SVNKit 1.3.0 Implementation

Click Install... and restart Eclipse after installation finished.

If you are new to the whole topic, you should rtfm the documentation of the plugin