A feature and operational-hardening release that adds alpha scheduling capabilities, new scheduler and Helm configuration, and fixes scheduler and integration stability issues. Operators should review Kubernetes and DRA compatibility requirements, the changed DRA default, and the disclosed denial-of-service and Prometheus security fixes.
Action needed (4)
securitymediumPrometheus dependency update for GHSA-vffh-x6r8-xx99
Updates
github.to address stored XSS advisory GHSA-vffh-x6r8-xx99.com/prometheus/prometheus securitymediumAdmission webhook request body limits
The admission webhook now limits request bodies, fixing the denial-of-service risk identified by CVE-2026-44247 and GHSA-8wxp-xxp2-rcgx.
breakingDRA scheduling integration default
DRA scheduling integration is enabled by default.
breakingDRA scheduling integration default behavior
DRA scheduling integration is enabled by default to align with Kubernetes 1.34 and later behavior. Set
predicate.toDynamicResourceAllocationEnable falseto disable it.
Check if affected (2)
breakingOpt-in
SchedulingGatesQueueAdmissionApplies if you enable
SchedulingGatesQueueAdmission.SchedulingGatesQueueAdmissionis opt-in and must be enabled on both the scheduler and webhook-manager.breakingOpt-in gang-aware preemption and reclamation
Applies if you configure
gangPreemptandgangReclaimand do not configurepreemptorreclaim.Gang-aware preemption and reclamation are opt-in. Configure
gangPreemptandgangReclaimexplicitly, without using the legacypreemptandreclaimactions in the same scheduler action list.