Download Package Control and use the Package Control: Install Package command from the command palette. The command palette is opened via ctrl+shift+p on Windows and Linux, and cmd+shift+p on OS X.
Once you run the Package Control: Install Package command, a list of packages will appear. Type in SVN and hit enter. Using Package Control ensures Sublime SVN will stay up to date automatically.
Without a license, Sublime SVN runs in evaluation mode. This mode includes full functionality and there is no time limit, however, continued usage requires the purchase of a license. A reminder will appear every so often.
The Sublime SVN package uses the Subversion command line client svn to run commands. Users of OS X 10.8 (Mountain Lion) and Linux will need to install Subversion manually.
Sublime SVN includes Subversion 1.6, 1.7 and 1.8 for Windows. OS X 10.6 and 10.7 include Subversion. If you do have Subversion installed, but Sublime SVN is not recognizing it, please see the svn_binary_path setting.
As of OS X 10.8, Apple decided to no longer include Subversion with the default install of the OS. Subversion must be downloaded and installed separately. Wandisco provides so-called "Vanilla Subversion", (the standard svn command-line client) for free. Please visit the following link and install Subversion 1.7.x for OS X 10.8.x. Subversion 1.6.x can be substituted if required.
Depending on what distribution of Linux you run, the command to install Subversion will differ slightly. Each of these commands must be run from your Terminal.
Once installed, you may need to restart Sublime Text for the command line client to be properly detected.
If you are having trouble with the stable version (v1.7.0) of SVN, please use the instructions below to install the testing version (v1.7.1-alpha1), which includes a number of bug fixes.