- YAML documents separators ("---") can now be followed by whitespace and comments ("# ....") on the same line. This fixes a bug where documents starting with a comment after the separator were ignored. Other types of content on the same line will result in an error. ([#103457](https://github.com/kubernetes/kubernetes/pull/103457), [@codearky](https:/...

  must contain '^' or the '//' prefix to anchor to the start, and '$' or the port separator ':' to anchor to 
  the end. ([#112809](https://github.com/kubernetes/kubernetes/pull/112809), [@tkashem](https://github.com/tkashem)) [SIG API Machinery]

pkg os (netbsd-arm64), const PathSeparator = 47
pkg path/filepath (netbsd-arm64-cgo), const ListSeparator = 58
pkg path/filepath (netbsd-arm64-cgo), const Separator = 47
pkg path/filepath (netbsd-arm64), const ListSeparator = 58
pkg path/filepath (netbsd-arm64), const Separator = 47
pkg reflect, method (Value) IsZero() bool
pkg runtime (netbsd-arm64-cgo), const GOARCH = "arm64"
pkg runtime (netbsd-arm64-cgo), const GOOS = "netbsd"

### Other (Cleanup or Flake)

- "Removed the ability to run `kubectl exec [POD] [COMMAND]` without a `--` separator.
  The `--` separator has been recommended since the Kubernetes v1.18 release, which also deprecated the legacy way of invoking `kubectl exec`.
  

- Kubeadm: Added the `HTTPEndpoints` field to `ClusterConfiguration.Etcd.ExternalEtcd` to configure HTTP endpoints for etcd communication in v1beta4. This separates HTTP traffic (e.g., `/metrics`, `/health`) from gRPC traffic, improving access control. Mirrors etcd’s `--listen-client-http-urls` behavior; if not set, the `Endpoints` field handles both traffic types. ([#134890](https://github.com/kubernetes/k...

- Pod SecurityContext and PodSecurityPolicy supports slash as sysctl separator. ([#106834](https://github.com/kubernetes/kubernetes/pull/106834), [@mengjiao-liu](https://github.com/mengjiao-liu)) [SIG Apps, Architecture, Auth, Node, Security and Testing]

pkg os (darwin-arm64-cgo), const PathSeparator = 47
pkg path/filepath (darwin-arm64), const ListSeparator = 58
pkg path/filepath (darwin-arm64), const Separator = 47
pkg path/filepath (darwin-arm64-cgo), const ListSeparator = 58
pkg path/filepath (darwin-arm64-cgo), const Separator = 47
pkg runtime (darwin-arm64), const GOARCH = "arm64"
pkg runtime (darwin-arm64), const GOOS = "darwin"

and punctuation</i>, and <i>literals</i>.  <i>White space</i>, formed from
spaces (U+0020), horizontal tabs (U+0009),
carriage returns (U+000D), and newlines (U+000A),
is ignored except as it separates tokens
that would otherwise combine into a single token. Also, a newline or end of file
may trigger the insertion of a <a href="#Semicolons">semicolon</a>.
While breaking the input into tokens,