I’ve decided to create this blog entry just to share Oracle Linux and UEK releases, how those are associated and which UEK releases are available on different OL versions. So, maybe, this article could be useless for many people who already know which UEK releases are available on each OL release but, at the same time, could be helpful for many others approaching Oracle Linux:

Oracle Linux 10 – x86_64

OL ReleaseInitial UEK kernelInitial RHCK kernelUEK8 supported
OL10U1kernel-uek-6.12.0-105.51.5kernel-6.12.0-124.8.1Yes, default
OL10kernel-uek-6.12.0-100.28.2kernel-6.12.0-55.9.1.0.1Yes, default

Oracle Linux 9 – x86_64

OL ReleaseInitial UEK kernelInitial RHCK kernelUEK7 supportedUEK8 supported
OL9U7kernel-uek-6.12.0-105.51.5kernel-5.14.0-611.5.1YesYes, default
OL9U6kernel-uek-6.12.0-1.23.3.2kernel-5.14.0-570.12.1.0.1YesYes, default
OL9U5kernel-uek-5.15.0-302.167.6kernel-5.14.0-503.11.1Yes, defaultYes
OL9U4kernel-uek-5.15.0-205.149.5.1kernel-5.14.0-427Yes, defaultNo, OL9U5 req.
OL9U3kernel-uek-5.15.0-200.131.27kernel-5.14.0-362.8.1Yes, defaultNo, OL9U5 req.
OL9U2kernel-uek-5.15.0-101.103.2.1kernel-5.14.0-284.11.1Yes, defaultNo, OL9U5 req.
OL9U1kernel-uek-5.15.0-3.60.5.1kernel-5.14.0-162.6.1Yes, defaultNo, OL9U5 req.
OL9kernel-uek-5.15.0-0.30.19kernel-5.14.0-70.13.1.0.3Yes, defaultNo, OL9U5 req.

Oracle Linux 8 – x86_64

OL ReleaseInitial UEK kernelInitial RHCK kernelUEK6 supportedUEK7 supported
OL8U10kernel-uek-5.15.0-206.153.7kernel-4.18.0-544YesYes, default
OL8U9kernel-uek-5.15.0-200.131.27kernel-4.18.0-513.5.1YesYes, default
OL8U8kernel-uek-5.15.0-101.103.2.1kernel-4.18.0-477.10.1YesYes, default
OL8U7kernel-uek-5.15.0-3.60.5.1kernel-4.18.0-425.3.1YesYes, default
OL8U6kernel-uek-5.4.17-2136.307.3kernel-4.18.0-372.9.1Yes, defaultYes
OL8U5kernel-uek-5.4.17-2136.300.7kernel-4.18.0-348Yes, defaultYes
OL8U4kernel-uek-5.4.17-2102.201.3kernel-4.18.0-305Yes, defaultNo. OL8U5 req.
OL8U3kernel-uek-5.4.17-2011.7.4kernel-4.18.0-240Yes, defaultNo. OL8U5 req.
OL8U2kernel-uek-5.4.17-2011.1.2kernel-4.18.0-193Yes, defaultNo. OL8U5 req.
OL8U1Not Availablekernel-4.18.0-147YesNo. OL8U5 req.
OL8Not Availablekernel-4.18.0-80No. OL8U1 req.No. OL8U5 req.

Oracle Linux 7 – x86_64

OL ReleaseInitial UEK kernelInitial RHCK kernelUEK3 supportedUEK4 supportedUEK5 supportedUEK6 supported
OL7U9kernel-uek-5.4.17-2011.6.2kernel-3.10.0-1160Yes, SustainingYes, SustainingYes, SustainingYes, Extended
OL7U8kernel-uek-4.14.35-1902.300.11kernel-3.10.0-1127Yes, SustainingYes, SustainingYes, SustainingYes, Extended
OL7U7kernel-uek-4.14.35-1902.3.2kernel-3.10.0-1062Yes, SustainingYes, SustainingYes, SustainingYes, Extended
OL7U6kernel-uek-4.14.35-1818.3.3kernel-3.10.0-957Yes, SustainingYes, SustainingYes, SustainingNo. OL7U7 req.
OL7U5kernel-uek-4.1.12-112.16.4kernel-3.10.0-862Yes, SustainingYes, SustainingYes, SustainingNo. OL7U7 req.
OL7U4kernel-uek-4.1.12-94.3.9kernel-3.10.0-693Yes, SustainingYes, SustainingNo. OL7U5 req.No. OL7U7 req.
OL7U3kernel-uek-4.1.12-61.1.18kernel-3.10.0-514Yes, SustainingYes, SustainingNo. OL7U5 req.No. OL7U7 req.
OL7U2kernel-uek-3.8.13-98.7.1kernel-3.10.0-327Yes, SustainingYes, SustainingNo. OL7U5 req.No. OL7U7 req.
OL7U1kernel-uek-3.8.13-55.1.6kernel-3.10.0-229Yes, SustainingYes, SustainingNo. OL7U5 req.No. OL7U7 req.
OL7kernel-uek-3.8.13-35.3.1kernel-3.10.0-123Yes, SustainingNo. OL7U1 req.No. OL7U5 req.No. OL7U7 req.

Oracle Linux 6 – x86_64

OL ReleaseInitial UEK kernelInitial RHCK kernelUEK2 supportedUEK3 supportedUEK4 supported
OL6U10kernel-uek-4.1.12-124.16.4kernel-2.6.32-754Yes, SustainingYes, SustainingYes, Sustaining
OL6U9kernel-uek-4.1.12-61.1.28kernel-2.6.32-696Yes, SustainingYes, SustainingYes, Sustaining
OL6U8kernel-uek-4.1.12-37.4.1kernel-2.6.32-642Yes, SustainingYes, SustainingYes, Sustaining
OL6U7kernel-uek-3.8.13-68.3.4kernel-2.6.32-573Yes, SustainingYes, SustainingNo. OL6U8 req.
OL6U6kernel-uek-3.8.13-44.1.1kernel-2.6.32-504Yes, SustainingYes, SustainingNo. OL6U8 req.
OL6U5kernel-uek-3.8.13-16.2.1kernel-2.6.32-431Yes, SustainingYes, SustainingNo. OL6U8 req.
OL6U4kernel-uek-2.6.39-400.17.1kernel-2.6.32-358Yes, SustainingNo. OL6U5 req.No. OL6U8 req.
OL6U3kernel-uek-2.6.39-200.24.1kernel-2.6.32-279Yes, SustainingNo. OL6U5 req.No. OL6U8 req.
OL6U2kernel-uek-2.6.32-300.3.1kernel-2.6.32-220Yes, SustainingNo. OL6U5 req.No. OL6U8 req.
OL6U1kernel-uek-2.6.32-100.34.1kernel-2.6.32-131.0.15No. OL6U2 req.No. OL6U5 req.No. OL6U8 req.
OL6kernel-uek-2.6.32-100.28.5kernel-2.6.32-71No. OL6U2 req.No. OL6U5 req.No. OL6U8 req.

Extended Support – Oracle Linux Extended Support may be offered for certain supported Oracle Linux program releases after Oracle Linux Premier Support expires. When Oracle Linux Extended Support is offered, it is generally available for the terminal codeline release of a program.

Sustaining Support – Sustaining Support will be available after Premier Support expires. As program releases under Sustaining Support are no longer fully supported, information and skills regarding those releases may be limited.

Oracle Linux Lifetime support policies are available through the Lifetime Support Policy: Coverage for Oracle Open Source Service Offerings document. Oracle Linux Support levels details, that includes Premier, Basic, Extended and Sustaining, are available through the Oracle Open Source Support Policies document.

Oracle Linux ISO Downloads are public available for free at http://yum.oracle.com/oracle-linux-isos.html

NB: RHCK acronym stands for Red Hat Compatible Kernel.

Oracle Linux also supports aarch64 architecture:

Oracle Linux 10 – aarch64

OL ReleaseInitial UEK kernelInitial RHCK kernelUEK8 supported
OL10U1 – aarch64kernel-uek-6.12.0-105.51.5Not AvailableYes, default
OL10 – aarch64kernel-uek-6.12.0-100.28.2Not AvailableYes, default

Oracle Linux 9 – aarch64

OL ReleaseInitial UEK kernelInitial RHCK kernelUEK7 supportedUEK8 supported
OL9U7 – aarch64kernel-uek-6.12.0-105.51.5Not AvailableYesYes, default
OL9U6 – aarch64kernel-uek-6.12.0-1.23.3.2Not AvailableYesYes, default
OL9U5 – aarch64kernel-uek-5.15.0-302.167.6Not AvailableYes, defaultYes
OL9U4 – aarch64kernel-uek-5.15.0-205.149.5.1Not AvailableYes, defaultNo, OL9U5 req.
OL9U3 – aarch64kernel-uek-5.15.0-200.131.27Not AvailableYes, defaultNo, OL9U5 req.
OL9U2 – aarch64kernel-uek-5.15.0-101.103.2.1Not AvailableYes, defaultNo, OL9U5 req.
OL9U1 – aarch64kernel-uek-5.15.0-3.60.5.1Not AvailableYes, defaultNo, OL9U5 req.
OL9 – aarch64kernel-uek-5.15.0-0.30Not AvailableYes, defaultNo, OL9U5 req.

Oracle Linux 8 – aarch64

OL ReleaseInitial UEK kernelInitial RHCK kernelUEK6 supportedUEK7 supported
OL8U10 – aarch64kernel-uek-5.15.0-206.153.7Not AvailableYesYes, default
OL8U9 – aarch64kernel-uek-5.15.0-200.131.27Not AvailableYesYes, default
OL8U8 – aarch64kernel-uek-5.15.0-101.103.2.1Not AvailableYesYes, default
OL8U7 – aarch64kernel-uek-5.15.0-3.60.5.1Not AvailableYesYes, default
OL8U6 – aarch64kernel-uek-5.4.17-2136.307.3Not AvailableYes, defaultYes
OL8U5 – aarch64kernel-uek-5.4.17-2136.300.7Not AvailableYes, defaultNo. OL8U6 req.
OL8U4 – aarch64kernel-uek-5.4.17-2102.201.3Not AvailableYes, defaultNo. OL8U6 req.
OL8U3 – aarch64kernel-uek-5.4.17-2011.7.4Not AvailableYes, defaultNo. OL8U6 req.
OL8U2 – aarch64kernel-uek-5.4.17-2011.1.2Not AvailableYes, defaultNo. OL8U6 req.

Oracle Linux 7 – aarch64

OL ReleaseInitial UEK kernelInitial RHCK kernelUEK5 supportedUEK6 supported
OL7U9 – aarch64kernel-uek-5.4.17-2011.6.2Not availableYes, SustainingYes, Sustaining
OL7U8 – aarch64kernel-uek-5.4.17-2011.0.7Not AvailableYes, SustainingYes, Sustaining
OL7U7 – aarch64kernel-uek-4.14.35-1902.3.2Not AvailableYes, SustainingNo
OL7U6 – aarch64kernel-uek-4.14.35-1818.3.3Not AvailableYes, SustainingNo
OL7U5 – aarch64kernel-uek-4.14.35-1818.0.9Not AvailableYes, SustainingNo

Related to the Kernel I also want to specify something important related to the UEK acronym and releases associated:

Kernel ReleaseUEK AcronymOracle Linux 6Oracle Linux 7Oracle Linux 8Oracle Linux 9Oracle Linux 10
6.17.0UEK-NextNot AvailableNot AvailableNot Availablex86_64 aarch64x86_64 aarch64
6.12.0UEK8Not AvailableNot AvailableNot Availablex86_64 aarch64x86_64 aarch64
5.15.0UEK7Not AvailableNot Availablex86_64 aarch64x86_64 aarch64Not Available
5.4.17UEK6Not Availablex86_64 aarch64x86_64Not AvailableNot Available
4.14.35UEK5Not Availablex86_64Not AvailableNot AvailableNot Available
4.1.12UEK4x86_64x86_64Not AvailableNot AvailableNot Available
3.8.13UEK3x86_64x86_64Not AvailableNot AvailableNot Available
2.6.39UEK2x86_64Not AvailableNot AvailableNot AvailableNot Available
2.6.32UEKx86_64Not AvailableNot AvailableNot AvailableNot Available

On the following table, for each UEK Update Acronym, you can find the Major Kernel Release associated:

Kernel AcronymKernel Major ReleaseKernel Release Date
UEK8U16.12.0-10*June, 2025
UEK86.12.0April, 2025
UEK7U35.15.0-30*September, 2024
UEK7U25.15.0-20*October, 2023
UEK7U15.15.0-10*April, 2023
UEK75.15.0June, 2022
UEK6U35.4.17-2136October, 2021
UEK6U25.4.17-2102March, 2021
UEK6U15.4.17-2036November, 2020
UEK65.4.17-2011March, 2020
UEK5U54.14.35-2047.5*February, 2021
UEK5U44.14.35-2025.4*September, 2020
UEK5U34.14.35-1902.30*March, 2020
UEK5U24.14.35-1902June, 2019
UEK5U14.14.35-1844December, 2018
UEK54.14.35-1818June, 2018
UEK4U74.1.12-124April, 2018
UEK4U64.1.12-112December, 2017
UEK4U54.1.12-103August, 2017
UEK4U44.1.12-94April, 2017
UEK4U3N/AN/A
UEK4U24.1.12-61August, 2016
UEK4U14.1.12-37April, 2016
UEK44.1.12-32January, 2016
UEK3U73.8.13-118November, 2015
UEK3U63.8.13-98July, 2015
UEK3U53.8.13-68March, 2015
UEK3U43.8.13-55January, 2015
UEK3U33.8.13-44August, 2014
UEK3U23.8.13-35May, 2014
UEK3U13.8.13-26February, 2014
UEK33.8.13-16October, 2013
UEK2U52.6.39-400.209.1September, 2013
UEK2U42.6.39-400.109.1July, 2013
UEK2U32.6.39-400February, 2013
UEK2U22.6.39-300October, 2012
UEK2U12.6.39-200June, 2012
UEK22.6.39-100March, 2012

Further information:

I’ll do my best to keep those information updated and, in the meanwhile, feel free to leave your comments here.