Carnegie Mellon University School of Computer Science

Operating System Support Lifecycle

SCS Computing Facilities publishes this guide defining the lifecycle of our support for different operating systems. This guide is intended to help explain the support timeframe for an OS from Testing status through to End-of-Life (EOL). The guide also will incorporate new operating system versions as they are announced by the vendors.

This page contains links to the vendor/developer's own notes on release support and lifecycles. Our support lifecycle information can be found in the table below and can be downloaded in a PDF link (found below).

Please note that Apple does not officially release information on OS version releases and lifecycles in a schedule or forecast. 

Download the Support Lifecycle PDF.

SCS OS Support Statuses

Testing This platform is not yet supported by SCS Computing.
Active (Default) This platform is supported by SCS Computing and new machines will be built with this platform unless otherwise requested.
Active This platform is supported by SCS Computing and will be installed on request.
Containment This platform is currently supported by SCS Computing but no new machines will be built with this platform. Platforms in containment will receive security updates and patches for the SCS supported software components. SCS Computing Facilities will not provide new software or major revisions to existing software for these platforms.
Phasing Out SCS Computing is actively working to migrate assets away from this platform. Platforms go in to this status automatically 6 months before the SCS End of Support Date. Platforms may be placed in this status before that time.
EOL This platform is no longer supported by SCS Computing. Software support will be dropped from any asset running this platform. Other levels of support may be dropped as circumstances warrant. A valid reason is required to maintain an asset running this platform past the End of SCS Support date. All exceptions must be logged and periodically reviewed.

Support Lifecycle Guide

As of: 12 Aug 2018

OS Family Operating System Latest Update or Service Pack SCS Support Status Vendor Release Date Start of SCS Support End of SCS Support Latest Vendor EOL Date

Windows Desktop

Windows 10 N/A Active (Default) 29 Jul 2015 15 Jun 2016 14 Oct 2025 14 Oct 2025
Windows 8 8.1 Phasing Out 26 Oct 2012 1 Jan 2016 14 Jun 2016 10 Jan 2023
Windows 7 SP1 Containment 22 Oct 2009 1 Aug 2010 14 Jan 2020 14 Jan 2020
Windows Vista SP2 Phasing Out 30 Jan 2007 Feb 2007 11 Apr 2017 11 Apr 2017
Windows XP SP3 EOL 25 Oct 2001 1 Aug 2002 8 Apr 2014 8 Apr 2014

Windows Server

Windows Server 2012 R2 Active (Default) 4 Sep 2012 Oct 2012 10 Jan 2023 10 Jan 2023
Windows Server 2008 R2 Containment 27 Feb 2008 1 Mar 2008 14 Jan 2020 14 Jan 2020
Windows Server 2003 R2 EOL 24 Apr 2003 1 May 2003 14 Jul 2015 14 Jul 2015

OS X / macOS

macOS High Sierra upgrade note 10.13 Active (Default) 25 Sep 2017 5 Mar 2018 TBD ~2020
see note
macOS Sierra 10.12 Active 20 Sep 2016 1 Jan 2017 TBD ~2019
see note
OS X El Capitan 10.11 Containment 30 Sep 2015 Jun 2016 TBD ~2018
see note
OS X Yosemite 10.10 Phasing Out 16 Oct 2014 8 Jan 2015 25 Sep 2017 ~2017
see note
OS X Mavericks 10.9.5 Phasing Out 22 Oct 2013 10 Mar 2014 20 Sep 2016 ~2016
see note
OS X Mountain Lion 10.8.5 EOL 25 Jul 2012 28 Nov 2012 1 Jun 2016 ~2015
see note

Ubuntu Linux

Ubuntu 16.04 LTS
"Xenial Xerus"
16.04 Active (Default) 21 Apr 2016 1 Feb 2017 Apr 2021 Apr 2021
Ubuntu 14.04 LTS
"Trusty Tahr"
14.04 Containment 17 Apr 2014 23 Sep 2014 Apr 2019 Apr 2019
Ubuntu 12.04 LTS
"Precise Pangolin"
12.04 EOL 23 Apr 2012 6 Sep 2012 Apr 2017 Apr 2017

Fedora Linux

Fedora 14
64-bit
14 Phasing Out 2 Nov 2010 Oct 2011 12 Sep 2018 Dec 2011
Fedora 10 10 EOL 25 Nov 2008 Jul 2009 Sep 2016 Dec 2009

Unix

Solaris 10 10 Containment 31 Jan 2005 1 Sep 2008 Jan 2021 Jan 2021

Clusters

Rocks Cluster Distribution (6.x) 6.1.1 Active (Default) 1 Mar 2012 Apr 2012 30 Nov 2020 30 Nov 2020
Rocks Cluster Distribution (5.x) 5.4.3 Phasing Out 1 Mar 2008 1 Nov 2008 31 Mar 2017 31 Mar 2017

Note: Apple does not publish official EOL dates, but typically provides security updates for the current release of macOS, as well as the previous two releases.