Basic 'Rules'

For any OSes/Hypervisors that are already EOL

'End Of Support' dates and 'Removal from Code' dates for the remaining OSes/Hypervisors.

End Of Support for management server OSes and Hypervisor OSes will be the first release after the EOL date from the 'vendor', with code removal taking place in the first release which occurs after 6 months from 'vendor' EOL date.

Published Vendor EOL Dates

Hypervisors

XenServer

'Vendor' EOLCloudStack EOSRemoval from codebase
6.2Jun-18First release after June 2018First release after Nov 2018
6.5Jun-18First release after June 2018First release after Nov 2018
7.0May-21

7.1 LTSRAug-22

7.2Mar-18

(https://www.citrix.co.uk/support/product-lifecycle/product-matrix.html)


KVM

'Vendor' EOLCloudStack EOSRemoval from codebase
CentOS 6.x

May 10th, 2017 (full updates)

November 30th 2020 (maintenance updates)

TBD: First release after June 2019
CentOS 7.x

Q4 2020 (full updates)

June 30, 2024 (maintenance updates)



RHEL 6.xMay 10, 2017 (End of Maintenance Support 1)
November 30th 2020
(Product retirement)
TBD: First release after June 2019
RHEL 7.x

Q4 of 2020 (End of Maintenance Support 1)

June 30, 2024 (Product retirement)



Ubuntu 12.04Q2 2017First release after June 20184.12.0.0+
Ubuntu 14.04Q2 2019First release after Feb 20194.12.0.0+
Ubuntu 16.04Q2 2021

Ubuntu 18.04Q2 2023

Ubuntu 20.04Q2 2025

https://wiki.centos.org/About/Product
https://access.redhat.com/support/policy/updates/errata#Life_Cycle_Dates
https://www.ubuntu.com/info/release-end-of-life


vSphere

'Vendor' EOLCloudStack EOSRemoval from codebase
4.x


5.0

Aug-2016First release after June 2018First release after Nov 2018
5.1Aug-2016First release after June 2018First release after Nov 2018
5.5Sept-2018First release after Feb 2019First release after July 2019
6.02020

6.52021

https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/support/product-lifecycle-matrix.pdf


Hyper-V

'Vendor' EOLCloudStack EOSRemoval from codebase
Windows Server 2012 R2 Sept-2018 (Mainstream)

Windows Server 2016Oct-2026 (Mainstream)

https://support.microsoft.com/en-us/lifecycle/search


Oracle VM (OVM)

'Vendor' EOLCloudStack EOSRemoval from codebase
VM 2Nov 2015First release after June 2018First release after Nov 2018
VM3 (experiential)Aug 2019

http://www.oracle.com/us/support/library/elsp-lifetime-069338.pdf

Management Server OS


'Vendor' EOLCloudStackRemoval from codebase
CentOS 6.x

May 10th, 2017 (full updates)

November 30th 2020 (maintenance updates)

TBD: First release after June 2019
CentOS 7.x

Q4 2020 (full updates)

June 30, 2024 (maintenance updates)



RHEL 6.xMay 10, 2017 (End of Maintenance Support 1)
November 30th 2020
(Product retirement)
TBD: First release after June 2019
RHEL 7.x

Q4 of 2020 (End of Maintenance Support 1)

June 30, 2024 (Product retirement)



Ubuntu 12.04Q2 2017First release after June 20184.12.0.0+
Ubuntu 14.04Q2 2019 First release after Feb 2019 4.12.0.0+
Ubuntu 16.04Q2 2021

Ubuntu 18.04Q2 2023

Ubuntu 20.04Q2 2025

https://wiki.centos.org/About/Product
https://access.redhat.com/support/policy/updates/errata#Life_Cycle_Dates
https://www.ubuntu.com/info/release-end-of-life