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CNV-61645: RN for disk hotplug with virtio-blk devices #100533

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Oct 22, 2025
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CNV-61645: RN for disk hotplug with virtio-blk devices #100533

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10 changes: 7 additions & 3 deletions virt/release_notes/virt-4-20-release-notes.adoc
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Expand Up @@ -92,6 +92,8 @@ This release adds new features and enhancements related to the following compone

//CNV-63497
* When performing live migration of a VM, you can now xref:../../virt/live_migration/virt-initiating-live-migration.adoc#virt-initiating-vm-migration-web_virt-initiating-live-migration[specify the particular node for the VM to migrate to.]
//CNV-61645
* The procedure for hot plugging disks now includes an optional step for selecting a bus type. You can select the `virtio-blk` or the `virtio-scsi` bus type. The `virtio-blk` type is the default. For more information, see xref:../../virt/managing_vms/virtual_disks/virt-hot-plugging-virtual-disks.adoc#virt-hot-plugging-virtual-disks[Hot plugging VM disks].

[id="virt-4-20-monitoring_{context}"]
=== Monitoring
Expand All @@ -104,9 +106,10 @@ The guest agent ping probe is now generally available (GA). Previously, this fea
//[id="virt-4-20-documentation_{context}"]
//=== Documentation improvements

//[id="virt-4-20-notable-technical-changes_{context}"]
//=== Notable technical changes

[id="virt-4-20-notable-technical-changes_{context}"]
=== Notable technical changes
//CNV-61645
* Before this update, only the `virtio-scsi` bus type could be used for hot plugging disks. With this update, the `virtio-blk` bus type is supported as well.

[id="virt-4-20-deprecated-removed_{context}"]
== Deprecated and removed features
Expand All @@ -118,6 +121,7 @@ The guest agent ping probe is now generally available (GA). Previously, this fea
Deprecated features are included in the current release and supported. However, they will be removed in a future release and are not recommended for new deployments.

* The `OperatorConditionsUnhealthy` alert is deprecated. You can safely xref:../../observability/monitoring/managing-alerts/managing-alerts-as-an-administrator.adoc#silencing-alerts-adm_managing-alerts-as-an-administrator[silence] it.
* All hot plugged disks are persistent by default. The use of non-persistent hot plugged disks is deprecated. They will not be supported in future releases.

[id="virt-4-20-removed_{context}"]
=== Removed features
Expand Down