job controller back-off logic is now decoupled from workqueue. In case of parallelism > 1, if there are multiple new failures in a reconciliation cycle, all the failures are taken into account to compute the back-off. Previously, the back-off kicked in for all types of failures; with this change, only pod failures are taken into account. If the back-off limits exceeds, the job is marked as failed immediately; before this change, the job is marked as failed in the next back-off. ([#114768](https:...

For the 1.8 release, SIG Multicluster focussed on expanding the set of
Kubernetes primitives that our Cluster Federation control plane
supports, expanding the number of approaches taken to multi-cluster
management (beyond our initial Federation approach), and preparing
to release Federation for general availability ('GA').

- Added `apiextensions_apiserver_update_ratcheting_time` metric for tracking time taken during requests by feature `CRDValidationRatcheting`. ([#121462](https://github.com/kubernetes/kubernetes/pull/121462), [@alexzielenski](https://github.com/alexzielenski))