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oVirt 4.5.7 is now generally available
by Jean-Louis Dupond 13 Jan '26

13 Jan '26

*oVirt 4.5.7 is now generally available* The oVirt Project is pleased to announce the availability of the 4.5.7 release as of January 13 2026. oVirt is a free open-source distributed virtualization solution, designed to manage your entire enterprise infrastructure. oVirt uses the trusted KVM hypervisor and is built upon several other community projects, including libvirt, Gluster, PatternFly, and Ansible. This release is now available on x86_64 architecture for: oVirt Node NG (based on CentOS Stream 9) CentOS Stream 9 CentOS Stream 10 RHEL 9 and derivatives RHEL 10 and derivatives To everyone using the oVirt Node NG we urge you to switch over to another way of using the product for ensured stability and security due to the way of how that product is structured. To find out how to interact with oVirt developers and users and ask questions, visit our community page. All issues or bugs should be reported via oVirt GitHub. If you’d like to try oVirt as quickly as possible, follow the instructions on the Download page. For complete installation, administration, and usage instructions, see the oVirt Documentation. For a general overview of oVirt, read the About oVirt page. To learn about features introduced before 4.5.7, see the release notes for previous versions. IMPORTANT If you are going to install on RHEL or derivatives please follow Installing on RHEL first. NOTE It is important that for installs on RHEL 10 and derivates that version 10.0-4 (or newer) of centos-release-ovirt45 is used. What’s New in 4.5.7? New releases in 4.5.7 Contributors New cpu’s What’s New in 4.5.7? CentOS 10 and AlmaLinux 10 support. Fixed CVE-2024-7259 Introduced new CPU’s Bumped external dependencies. Implemented new way of deploying to maven central. All Java code is now built on Java 21 and compatible with Java 11. Reconnect faster to host after reboot, instead of static 10 minutes adapted to connect when host is back online. On boot of VM have a spare of NumOfPciExpressPorts PCIe ports available instead of a fixed number. Add the optional attach_wgt flag to the vm start endpoint. This will auto attach the virtio-win iso to the vm. Ability to add tags to templates via UI in the administration panel. Add operating system description to host api object. Added option for user to decide preference of vnc console invocation. Added Windows 2025 and RHEL 10 to OS list. Improve isLiveDelete check on VM. Dropped deprecated packages. Dropped Ceph, Cinderlib and collectd in Centos 10 due to not available. Added new DC/Cluster level (4.8). Cluster level 4.8 now uses pc-q35-rhel9.6.0 machine type and enables discard-no-unref by default. Added ability to alter video device through API. Set audio value to ich9 starting from rhel7 on Q35. When a VDS network error occurs during VM start, set the VM status to “Unknown” instead of letting it fall through to “Down”. This to prevent duplicate VM deployments. Ability to update QoS on running VM’s when a QoS profile has been modified or when QoS was changed on a vNIC profile Many more changes were implemented in the newest releases of the oVirt packages and can be read about in detail down below. New releases in 4.5.7 ovirt-engine-4.5.7 cockpit-ovirt-0.16.3 ovirt-hosted-engine-setup-2.7.2 ovirt-node-ng-4.4.3 ovirt-engine-extension-aaa-ldap-1.5.0 otopi-1.10.5 ovirt-engine-ui-extensions-1.3.8-1 imgbased-1.2.26 ovirt-engine-metrics-1.6.3 ovirt-engine-extension-aaa-jdbc-1.3.1 ovirt-engine-keycloak-15.0.2-7 engine-db-query-1.6.5 ovirt-host-4.5.1-1 ovirt-engine-extensions-api-1.0.2 ovirt-log-collector-4.5.1 ovirt-engine-extension-aaa-misc-1.1.2 ovirt-dependencies-4.5.7 ovirt-setup-lib-1.3.4 ovirt-engine-build-dependencies-4.5.7 ovirt-web-ui 1.9.4 vdsm v4.50.6.1 vdsm-jsonrpc-java v1.7.4 python-ovirt-engine-sdk4 4.6.3 ovirt-engine-api-metamodel 1.3.11 ovirt-engine-api-model 4.6.1 ovirt-ansible-collection 3.2.1 ovirt-dwh 4.5.10 ovirt-hosted-engine-ha v2.5.2 mom 0.6.5 ovirt-engine-sdk-ruby 4.6.1 ovirt-engine-sdk-java 4.6.0 ovirt-provider-ovn 1.2.36 ovirt-engine-nodejs-modules 2.3.21 ovirt-vmconsole 10.0.10 terraform-provider-ovirt v2.2.0 ovirt-engine-sdk 4.5.1 ioprocess v1.4.3 userstorage 0.5.3 ovirt-tinycore-linux v13.13 ovirt-engine-wildfly 24.0.1-3 ovirt-jboss-modules-maven-plugin 2.0.4 Contributors 33 people contributed to this release: Arthur Verschaeve (Contributed to: ovirt-site) Artur Socha (Contributed to: vdsm-jsonrpc-java) Brian King (Contributed to: mom) Brooklyn Dewolf (Contributed to: vdsm) Eli Marcus (Contributed to: ovirt-site) Frank Wall (Contributed to: ovirt-site) Geoff O’Callaghan (Contributed to: ovirt-site, ovirt-node-ng-image, ovirt-appliance) Jasper Berton (Contributed to: ovirt-engine, vdsm, ovirt-web-ui, ovirt-engine-sdk, ovirt-site, cockpit-ovirt, ovirt-engine-sdk-java, mom, ovirt-engine-sdk-ruby, ovirt-provider-ovn, ovirt-engine-api-model, ovirt-hosted-engine-setup, python-ovirt-engine-sdk4, ovirt-engine-sdk-go, java-client-kubevirt, ovirt-engine-extension-aaa-ldap, ovirt-engine-api-metamodel, ovirt-engine-ui-extensions, imgbased, ovirt-engine-metrics, releng-tools, ovirt-engine-extension-aaa-jdbc, ovirt-engine-keycloak, ovirt-hosted-engine-ha, engine-db-query, ovirt-cockpit-sso, ovirt-lldp-labeler, ovirt-engine-extensions-api, ovirt-log-collector, ovirt-engine-nodejs-modules, ovirt-engine-extension-aaa-misc, ovirt-jboss-modules-maven-plugin, ovirt-dependencies, ovirt-setup-lib, ovirt-engine-build-dependencies) Jean-Louis Dupond (Contributed to: ovirt-engine, vdsm, terraform-provider-ovirt, ovirt-web-ui, ovirt-engine-sdk, ovirt-ansible-collection, cockpit-ovirt, ovirt-engine-sdk-java, ovirt-node-ng-image, ovirt-appliance, ovirt-imageio, mom, ovirt-engine-sdk-ruby, ovirt-provider-ovn, ovirt-engine-api-model, ovirt-hosted-engine-setup, python-ovirt-engine-sdk4, ovirt-engine-sdk-go, ovirt-system-tests, java-client-kubevirt, ovirt-engine-extension-aaa-ldap, otopi, vdsm-jsonrpc-java, ovirt-engine-api-metamodel, ovirt-engine-ui-extensions, imgbased, ovirt-release, ovirt-openvswitch, ovirt-engine-metrics, ovirt-vmconsole, ovirt-engine-extension-aaa-jdbc, ovirt-dwh, ovirt-engine-keycloak, ost-images, ovirt-hosted-engine-ha, engine-db-query, ovirt-cockpit-sso, ioprocess, buildcontainer, ovirt-engine-extensions-api, ovirt-log-collector, ovirt-engine-nodejs-modules, ovirt-engine-extension-aaa-misc, ovirt-jboss-modules-maven-plugin, ovirt-dependencies, ovirt-engine-wildfly, ovirt-setup-lib, userstorage, ovirt-tinycore-linux, ovirt-resources-upload-action, ovirt-build-dependencies, ovirt-engine-build-dependencies) Anton (Contributed to: ovirt-imageio) Jiri Slezka (Contributed to: ovirt-engine) Joschokvc (Contributed to: ovirt-engine-extension-aaa-jdbc) José Enrique Gutiérrez Mazón (Contributed to: vdsm) Juan Hernandez (Contributed to: ovirt-engine-sdk-ruby, ovirt-engine-api-metamodel) Keenan Brock (Contributed to: ovirt-engine-sdk-ruby) Lev Veyde (Contributed to: ovirt-site) Marc Dequènes (Duck) (Contributed to: ovirt-site) Marcin Sobczyk (Contributed to: vdsm, ovirt-system-tests, ovirt-vmconsole, ost-images) Martin Necas (Contributed to: ovirt-ansible-collection) Martin Perina (Contributed to: ovirt-engine-extension-aaa-ldap, ovirt-engine-extension-aaa-misc) Maxime Besson (Contributed to: terraform-provider-ovirt) Michael Trapp (Contributed to: vdsm) Michalskrivanek (Contributed to: ovirt-node-ng-image, ovirt-appliance, ovirt-system-tests) Peter Boden (Contributed to: ovirt-engine, vdsm, ovirt-ansible-collection, ovirt-provider-ovn, ovirt-engine-api-model, ovirt-system-tests, otopi, vdsm-jsonrpc-java, ovirt-vmconsole, releng-tools, ovirt-dwh, ost-images, ovirt-tinycore-linux, ovirt-engine-build-dependencies) Puhamihai (Contributed to: terraform-provider-ovirt) Raaghav Wadhawan (Contributed to: ovirt-engine) Sandro Bonazzola (Contributed to: ovirt-site, 512-byte-vm, ovirt-node-ng-image, ovirt-engine-sdk-ruby, python-ovirt-engine-sdk4, ovirt-system-tests, ovirt-engine-api-metamodel, imgbased, ovirt-release, ovirt-dwh, ost-images, ovirt-host, ioprocess, safelease, upload-rpms-action, checkout-action, ovirt-engine-build-dependencies) Sergii Kuzko (Contributed to: vdsm) Shubhaoracle (Contributed to: vdsm, ovirt-ansible-collection) Stanislav Melnichuk (Contributed to: ovirt-engine, ovirt-dwh, ovirt-engine-extension-aaa-misc, ovirt-engine-build-dependencies) Tomáš Golembiovský (Contributed to: mom) Vic Demuzere (Contributed to: ovirt-engine-sdk-go) Yedidyah Bar David (Contributed to: ovirt-dwh) New cpu’s Intel: Sapphire Rapids Server Secure Sapphire Rapids Server (all security features mentioned in v2 on qemu) AMD: EPYC Milan Secure EPYC Milan (all security features mentioned in v2 on qemu) EPYC Rome EPYC Rome v2 (all features mentioned in v2 on qemu) EPYC Genoa IBM: POWER10

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oVirt 4.5.7 - Testing
by Jean-Louis Dupond 19 Dec '25

19 Dec '25

Hi, It's been some month since previous announcement. But the moment we've been waiting for is here! *I am happy to announce that oVirt 4.5.7 is finally build and ready for testing in our testing repository!* You can install the version by installing the `centos-release-ovirt45-testing` package and activate the testing repository by issueing `dnf config-manager --set-enabled centos-ovirt45-testing` This should work on CentOS 9 and 10, but also on AlmaLinux 9 and 10. If there are questions, feel free to reach out on our Matrix channel: https://matrix.to/#/#ovirt:ovirt.tech Currently we are preparing the release notes, and when no major bugs pop-up, the release will happen soon! *Changes?* Some important/good to know changes since 4.5.6: - Support for new Intel and AMD CPU's - Fixed 2 cases where corruption could occur - CentOS 10 and AlmaLinux 10 support! - PCI slot improvements - New machine type - Cluster version 4.8 - All Java code build on Java21 and compatible with Java11+ - And much more! Thanks Jean-Louis

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oVirt - project update
by Jean-Louis Dupond 23 Sep '25

23 Sep '25

Hi everyone! It's been a while since something was announced. But in the background, a lot of work has been done! Since RedHat fully stepped down from the oVirt development, my team did an awesome job to take the development into our hands and continue building a strong product. A lot of steps were taken to just make everything working again. From CI pipelines to build processes to fixing deprecated components etc. Next to that, we dropped all support for CentOS 8, as this OS is EOL. *CentOS Stream 10 / EL 10* But next to just the house keeping, we also did a lot of effort to make the project fully building on CentOS Stream 10 (and also on EL 10). The ovirt-engine (and all other java codebases) now build on OpenJDK 21 instead of OpenJDK 11. This because OpenJDK 21 is available on both CentOS 9 as CentOS 10. This way the code can be built on the same version for both OS'es. Still the code is built with release target 11, so you can run it on OpenJDK 11+. Next to the Java code, all the python code was reviewed and python-six/python-nose was removed and replaced with native Python 3 code and PyTest. This to make the code more future proof. Also all the needed dependencies were added to the oVirt VIRT SIG to have all oVirt dependencies available on CentOS 10. *Testing* As everything builds on CentOS 9 and CentOS 10 now, everyone that wants can easily test the current master version of oVirt. You can find the fresh builds on COPR: https://copr.fedorainfracloud.org/coprs/ovirt/ovirt-master-snapshot/ Please note that you need EPEL enabled on CentOS/RHEL 10 builds. As we don't build all our dependencies ourselves when they are available in EPEL. The CentOS 9 builds should work smoothly. The CentOS 10 builds should work ... :) But bugs are expected. Therefor it's very helpful if you spend some time testing the new builds, and if you hit any issue, please report it with the needed logs/errors/reproducing steps. This will help us resolving those issues! *Deprecated?* Some things are most likely going to be deprecated or are already removed in CentOS 10 builds: _Cinderlib_ Cinderlib is not maintained anymore, and not available anymore on CentOS 10. Therefor we decided to drop the support for cinderlib in CentOS 10. You will still be able to use it on CentOS 9. We are looking for some alternative, more updates on this when available :) _GlusterFS_ As we all know, GlusterFS is also (quite) in maintenance mode. Packages for GlusterFS are not available on CentOS 10 anymore. So GlusterFS support is dropped on CentOS 10! _CollectD_ CollectD was used in oVirt to gather metrics of the hosts etc. As this is neither available on CentOS 10, this has also been removed as a requirement on CentOS 10. _ovirt-node-ng_ The oVirt node ISO images are currently only partially tested and build not very frequently. This because the technology used to build those images might need a refresh. But next to that, we feel like the advantages of having an oVirt node ISO is fairly small. And it even has some major disadvantages, like the fact you need to wait for a new ISO to receive a security update. Therefor we are thinking of just deprecating ovirt-node-ng ISO's. You can just install a fresh RHEL/CentOS/Alma/Rocky/... and install the ovirt packages on it. *Chat* Some months ago we also introduced a new way of communication, Matrix! You can find us and other users on https://matrix.to/#/#ovirt:ovirt.tech Feel free to join, and have a discussion or help each other out with issues! *Next?* Currently we try to focus on some testing of the current builds and fix the issues that arise. Once we feel comfortable, we will create a new release for testing. Without any major issue, that will be our next oVirt 4.5 release. *Help* There are still a lot of things that need love, can get improved, etc. if you want to help, feel free to reach out. Or just send in some PR's :) There are easy things (like the website itself https://github.com/oVirt/ovirt-site) that can use some attention. Or you can help adding translations via our new Weblate setup on https://translate.ovirt.tech/. *THANKS!* Next to that I also want to thank Sandro from RedHat to assist us with questions or with reaching the right people! And of course all the other people that send in PR's, helped us in the background, upgraded the mailinglist, etc :) If there are questions, comments, whatever. Feel free to join us on Matrix, and open the discussion. Let's have a great future ahead! Jean-Louis

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Welcome Jean-Louis Dupond to the oVirt Board
by Sandro Bonazzola 15 Jan '25

15 Jan '25

On behalf of the oVirt Board I’m thrilled to announce an exciting new addition: Jean-Louis Dupond. Jean-Louis brings a wealth of experience, expertise, and passion for open-source virtualization, making him an exceptional fit for the oVirt community. Read the full announce on the oVirt blog at https://blogs.ovirt.org/2025/01/welcome-jean-louis-dupond-to-the-ovirt-boar… -- Sandro Bonazzola

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Reminder: CentOS Stream 8 is now EOL
by Sandro Bonazzola 20 Jun '24

20 Jun '24

Hi, just a reminder that CentOS Stream 8 reached its end of life at the end of last month on Friday, May 31, 2024. As it has been announced by CentOS project[1], all the CentOS Stream 8 repositories are going to be archived at vault.centos.org . Who didn't update yet to CentOS Stream 9 will probably hit several errors related to this archiving: you'll need to manually adjust the repository url to point to the new location at vault.centos.org. The archiving is going to happen today [2] with the decommissioning of the nodes used by the CentOS Community Build System used for oVirt builds for Stream 8 within the CentOS Virtualization SIG. At this point, the recommendation is to upgrade to CentOS Stream 9 (or derived) as soon as practical. For those who are pushing changes to the oVirt project, please note GitHub actions may start to fail on CentOS Stream 8 (and with that, the builds for oVirt Node and oVirt Appliance). It's up to you to decide if you want to change the config there to use a different el8 distribution for running the tests or just turn off el8 and rely only on CentOS Stream 9 tests. [1] https://lists.centos.org/hyperkitty/list/announce@lists.centos.org/thread/D… [2] https://lists.centos.org/hyperkitty/list/devel@lists.centos.org/thread/P3HD… -- Sandro Bonazzola

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[ANN] oVirt 4.5.5 is now generally available
by Sandro Bonazzola 01 Dec '23

01 Dec '23

oVirt 4.5.5 is now generally available The oVirt project is excited to announce the general availability of oVirt 4.5.5, as of December 1st, 2023. Important notes before you install / upgrade If you’re going to install oVirt 4.5.5 on RHEL or similar, please read Installing on RHEL or derivatives <https://ovirt.org/download/install_on_rhel.html> f irst. Suggestion to use nightly As discussed in oVirt Users mailing list <https://lists.ovirt.org/archives/list/users@ovirt.org/thread/DMCC5QCHL6ECXN…> we suggest the user community to use oVirt master snapshot repositories <https://ovirt.org/develop/dev-process/install-nightly-snapshot.html> ensuring that the latest fixes for the platform regressions will be promptly available. This oVirt 4.5.5 release is meant to provide what has been made available in nightly repositories as base for new installations. If you are already using oVirt master snapshot you should already have received this release content. Documentation Be sure to follow instructions for oVirt 4.5! - If you want to try oVirt as quickly as possible, follow the instructions on the Download <https://ovirt.org/download/> page. - For complete installation, administration, and usage instructions, see the oVirt Documentation <https://ovirt.org/documentation/>. - For upgrading from a previous version, see the oVirt Upgrade Guide <https://ovirt.org/documentation/upgrade_guide/>. - For a general overview of oVirt, see About oVirt <https://ovirt.org/community/about.html>. What’s new in oVirt 4.5.5 Release? This release is available now on x86_64 architecture for: - oVirt Node NG (based on CentOS Stream 8) - oVirt Node NG (based on CentOS Stream 9) - CentOS Stream 8 - CentOS Stream 9 - RHEL 8 and derivatives - RHEL 9 and derivatives Experimental builds are also available for ppc64le and aarch64. See the release notes for installation instructions and a list of new features and bugs fixed. Additional resources: - Read more about the oVirt 4.5.5 release highlights: https://www.ovirt.org/release/4.5.5/ - Check out the latest project news on the oVirt blog: https://blogs.ovirt.org/ -- Sandro* Bonazzola* oVirt Project

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oVirt 4.5.4 first async update
by Sandro Bonazzola 21 Dec '22

21 Dec '22

On December 21st 2022, the following packages have been released as an async update: - oVirt Web UI 1.9.3 <https://github.com/oVirt/ovirt-web-ui/releases/tag/1.9.3> - oVirt Engine NodeJS Modules 2.3.20 <https://github.com/oVirt/ovirt-engine-nodejs-modules/releases/tag/2.3.20> - oVirt Engine UI Extensions 1.3.7 <https://github.com/oVirt/ovirt-engine-ui-extensions/releases/tag/ovirt-engi…> Regards, -- Sandro Bonazzola MANAGER, SOFTWARE ENGINEERING - Red Hat In-Vehicle Operating System Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://www.redhat.com/> *Red Hat respects your work life balance. Therefore there is no need to answer this email out of your office hours.*

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oVirt 4.5.4 is now generally available
by Sandro Bonazzola 06 Dec '22

06 Dec '22

oVirt 4.5.4 is now generally available The oVirt project is excited to announce the general availability of oVirt 4.5.4, as of December 5th, 2022. This release unleashes an altogether more powerful and flexible open source virtualization solution that encompasses hundreds of individual changes and a wide range of enhancements across the engine, storage, network, user interface, and analytics on top of oVirt 4.4. Important notes before you install / upgrade Some of the features included in oVirt 4.5.4 require content that is available in RHEL 8.7 (or newer) and derivatives. NOTE: If you’re going to install oVirt 4.5.4 on RHEL or similar, please read Installing on RHEL or derivatives <https://ovirt.org/download/install_on_rhel.html> first. Documentation Be sure to follow instructions for oVirt 4.5! - If you want to try oVirt as quickly as possible, follow the instructions on the Download <https://ovirt.org/download/> page. - For complete installation, administration, and usage instructions, see the oVirt Documentation <https://ovirt.org/documentation/>. - For upgrading from a previous version, see the oVirt Upgrade Guide <https://ovirt.org/documentation/upgrade_guide/>. - For a general overview of oVirt, see About oVirt <https://ovirt.org/community/about.html>. What’s new in oVirt 4.5.4 Release? This release is available now on x86_64 architecture for: - CentOS Stream 8 - CentOS Stream 9 - RHEL 8.7 and derivatives - RHEL 9.1 and derivatives This release supports Hypervisor Hosts on x86_64: - oVirt Node NG based on CentOS Stream 8 - oVirt Node NG based on CentOS Stream 9 - CentOS Stream 8 - CentOS Stream 9 - RHEL 8.7 and derivatives - RHEL 9.1 and derivatives Builds are also available for ppc64le and aarch64. Known issues: - On EL9 with UEFI secure boot, vdsm fails to decode DMI data due to Bug 2081648 <https://bugzilla.redhat.com/show_bug.cgi?id=2081648> - python-dmidecode module fails to decode DMI data oVirt Node will be released as soon as GitHub Runners will be back online (Ticket opened: https://issues.redhat.com/browse/CPDEVOPS-606 ) See the release notes for installation instructions and a list of new features and bugs fixed. Additional resources: - Read more about the oVirt 4.5.4 release highlights: https://www.ovirt.org/release/4.5.4/ - Check out the latest project news on the oVirt blog: https://blogs.ovirt.org/ -- Sandro Bonazzola MANAGER, SOFTWARE ENGINEERING - Red Hat In-Vehicle Operating System Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://www.redhat.com/> *Red Hat respects your work life balance. Therefore there is no need to answer this email out of your office hours.*

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Async release for ovirt-engine (4.5.3.2) and mom (0.6.4) is now available
by Lev Veyde 26 Oct '22

26 Oct '22

The oVirt Team has just released a new version of ovirt-engine package (4.5.3.2) and mom (0.6.4) that fixes important bugs: - Bug 2137207 <https://bugzilla.redhat.com/2137207> - The RemoveDisk job finishes before the disk was removed from the DB - Bug 2137532 <https://bugzilla.redhat.com/2137532> - MoM functionality is broken in mom-0.6.3-1 - Failed to initialize MOM threads The update is already available on resources.ovirt.org and should land on oVirt mirrors within 24 hours. -- Lev Veyde Senior Software Engineer, RHCE | RHCVA | MCITP Red Hat Israel <https://www.redhat.com> lev(a)redhat.com | lveyde(a)redhat.com <https://red.ht/sig> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>

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oVirt Node 4.5.3.1 Async update
by Sandro Bonazzola 21 Oct '22

21 Oct '22

oVirt Node 4.5.3.1 Async update On October 20th 2022 the oVirt project released an async update of oVirt Node (4.5.3.1) delivering a fix for OVS/OVN package conflict issue. The update is already available on resources.ovirt.org and should land on oVirt mirrors within 24 hours. -- Sandro Bonazzola MANAGER, SOFTWARE ENGINEERING, EMEA R&D PERFORMANCE & SCALE Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://www.redhat.com/> *Red Hat respects your work life balance. Therefore there is no need to answer this email out of your office hours.*

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