{"id":"kubernetes-4db858081023","seq":2508,"kind":"release","title":"Kubernetes v1.37: etcd RangeStream Cuts Memory Use on Large List Reads","url":"https://kubernetes.io/blog/2026/09/01/kubernetes-v1-37-etcd-range-stream/","permalink":"https://vulnpulse.app/items/kubernetes-4db858081023","summary":"I am excited to announce that etcd RangeStream is graduating to beta in Kubernetes v1.37. Paired with etcd v3.7, it reduces the memory the API server and etcd need to read a large collection, and makes peak usage more predictable. The cost of large reads The API server serves most list and watch requests from its in-memory watch cache. Populating that cache requires reading a resource's full state from etcd, at startup and on every re-initialization. For a resource with many objects, or large ones, such as Pods, that read is expensive. The API server already paginated these reads, asking etcd…","severity":null,"techs":["kubernetes"],"cves":[],"tags":[],"source":{"id":"kubernetes","name":"Kubernetes Blog"},"published_at":"2026-09-01T18:30:00.000Z","fetched_at":"2026-10-21T16:17:46.867Z"}