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All Sauce Connect Proxy versions below 4.6.0, which were supporting Private Certificates, have reached their end of life and are no longer available for download. In line with security best practices, Sauce Connect Proxy going forward will only support certificates signed by a Public Certificate Authority.

Action Required:

  • If you're running a Sauce Connect version below 4.5.0, upgrade as soon as possible to continue using Sauce Connect
  • If you're running version 4.6.0 or 4.6.1, we also strongly advise upgrading to 4.6.2 to take advantage of our latest enhancements and security updates
  • If you're using the Sauce Labs Jenkins Plugin, make sure you're using the most recent version
Sauce Connect versionsEnd of Technical SupportEnd of Life Stops Working (will no longer start tunnels)
4.5.0 and below

October 5, 2020

November 5, 2020

January 4, 2021
4.6.0 and belowOctober 5, 2020November 5, 2020March 31, 2021
4.6.2 and below

March 31, 2021

March 31, 2021

March 31, 2021

Download the latest version of Sauce Connect Proxy from the table below. For release notes on current and previous Sauce Connect Proxy versions – including features and fixes – see Sauce Connect Proxy Change Logs and recent Product Announcement. To learn more about deployment options, see System and Network Requirements for Sauce Connect Proxy.

See the following sections for more information:

What You’ll Need

Be sure to verify Sauce Connect Proxy network routes on your host machine.

macOS Catalina 10.15+ Users

To ensure compatibility with macOS Catalina 10.15+, you'll need to enable your Mac to allow apps from the App Store and identified developers.

  1. Go to System Preferences > Security & Privacy > General tab. 
  2. Under the header "Allow apps downloaded from," select the option "App Store and identified developers."

Download Sauce Connect Proxy

Latest Version: 4.6.3

Sauce Connect Proxy Download Link

SHA1 Checksum

Download Sauce Connect v4.6.3 for Mac OS 10.8+
Download Sauce Connect v4.6.3 for Windows 7+
Download Sauce Connect v4.6.3 for Linux
Download Sauce Connect v4.6.3 for Linux 32-bit

Contents of Sauce Connect Proxy Download

  1. To initiate the download, click the link in the table above appropriate for your local machine (Windows, Mac OS X, Linux).

  2. Extract contents of the .zip or .gz download.

  3. Once you've extracted the download file, you'll see a folder, which contains the following:
    1. bin directory:
      • sc.exe: Sauce Connect Proxy client executable file

    2. config_examples directory:
      • config.yml file: An example configuration file to be used with the --config-file command-line option. See Sauce Connect Proxy Command-Line Quick Reference Guide for more information.
      • systemd directory: Contains sample files for use with the systemd service manager to start and stop Sauce Connect Proxy. Consult the config_examples > systemd > file for more information.
      • upstart directory: Contains sample files for use with the upstart service manager to start and stop Sauce Connect Proxy. Consult the config_examples > upstart > file for more information.
    3. file: Sauce Connect Open Source Software Declaration
    4. license.html file: Sauce Labs, Inc. End User Agreement

Sauce Connect Proxy Logs

Once you start using Sauce Connect, a log file called sc.log will populate in your computer's directory. The location will vary, depending on your OS. For Mac OS X and Linux, the sc.log will use a tmp folder. For Windows, it'll use the current working directory.

Mac OS X

(DD Month) (Time)

Log file: /var/folders/72/tjnr5_fs4fvcb3csfjx4sw200000gn/T/sc.log

Linux (tested on Ubuntu 16.04.6)

(DD Month) (Time)

Log file: /tmp/sc.log 


(DD Month) (Time)

Log file: C:\Users\sauce_username\Downloads\sc-4.5.1-win32\sc-4.5.1-win32\sc.log

Additional Resources