45ddbc2569
Shamelessly copied from the cycle highlights Signed-off-by: René Ribaud <rribaud@redhat.com> Change-Id: Ib9de63fe4ccce24921326ef3bcfc690fd4481687
53 lines
2.7 KiB
YAML
53 lines
2.7 KiB
YAML
---
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prelude: |
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The OpenStack 2025.2 (Nova 32.0.0) release includes many new features and
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bug fixes. Please be sure to read the upgrade section which describes the
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required actions to upgrade your cloud from 31.0.0 (2025.1) to 32.0.0
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(2025.2).
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As a reminder, OpenStack 2025.2 is not a
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`Skip-Level-Upgrade Release <https://governance.openstack.org/tc/resolutions/20220210-release-cadence-adjustment.html>`_
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(starting from now, we name it a `SLURP release`) meaning that you can't
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do rolling-upgrade from 2024.2, you first need to upgrade to 2025.1.
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There are a few major changes worth mentioning. This is not an exhaustive
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list:
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- The latest Compute API microversion supported for 2025.2 is
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`v2.100 <https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#maximum-in-2025-1-epoxy-and-2025-2-flamingo>`_.
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- The libvirt guest XML now includes additional flavor and image metadata
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fields so that it can be used during troubleshooting or services like
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Ceilometer can retrieve accurate instance information directly, without
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performing extra Nova API calls.
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- Nova now supports a new default role ``manager`` which is scoped to the
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project level. This role is part of the standard role hierarchy supported
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by Keystone and allows trusted project users to perform project-level
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management tasks (e.g., live migration) without requiring full admin
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rights.
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- Service-to-service APIs now use the ``service`` role, reducing unnecessary
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privileges for cross-service communication.
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- Nova now supports one-time use passthrough devices. Such devices are
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allocated to a single instance, and when the instance is deleted,
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the device stays in a reserved state instead of becoming automatically
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available. This ensures operators can perform necessary security checks
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or hardware resets before reusing the device.
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- Completes SPICE direct consoles with USB controller config and sound device support.
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- Nova now supports QEMU’s memory balloon autodeflate and free page reporting
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features with the libvirt driver. These allow unused guest memory to be
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automatically released back to the hypervisor, improving memory efficiency
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and reducing the risk of the Out-of-Memory killer activating.
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- Added support for AMD Secure Encrypted Virtualization – Encrypted State
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(SEV-ES) with libvirt, extending confidential computing capabilities in
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Nova to protect guest memory and CPU register state.
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- Experimental feature: Nova API, metadata, and scheduler services can
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run in native threading mode as an alternative to eventlet. Please try
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it in non-production environment and share your success or failure with
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us on the openstack-discuss mailing list or via the Nova bug tracker.
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