Server-side apply now considers `.spec.defaultBackend` to be an atomic struct.  This means that any field-owner who sets values in that struct (they are mutually exclusive) owns the whole struct. For almost all users this change has no impact; for controllers that want to change the default backend port from number to name (or vice-versa), this makes it easier. ([#126207](https://github.com/kubernetes/kubernetes/pull/126207), [@thockin](https://github.com/thockin)) [SIG API Machinery]...

* Support whitespace in command path for gcp auth plugin ([#41653](https://github.com/kubernetes/kubernetes/pull/41653), [@jlowdermilk](https://github.com/jlowdermilk))
* client-go no longer imports GCP OAuth2 and OpenID Connect packages by default. ([#41532](https://github.com/kubernetes/kubernetes/pull/41532), [@ericchiang](https://github.com/ericchiang))

- Performance regression #97685 has been fixed....

pkg go/ast, type File struct
pkg go/ast, type File struct, Comments []*CommentGroup
pkg go/ast, type File struct, Decls []Decl
pkg go/ast, type File struct, Doc *CommentGroup
pkg go/ast, type File struct, Imports []*ImportSpec
pkg go/ast, type File struct, Name *Ident
pkg go/ast, type File struct, Package token.Pos
pkg go/ast, type File struct, Scope *Scope
pkg go/ast, type File struct, Unresolved []*Ident

to the compiler.
</p>

<h3 id="Program_initialization">Program initialization</h3>

<p>
The packages of a complete program are initialized stepwise, one package at a time.
If a package has imports, the imported packages are initialized
before initializing the package itself. If multiple packages import
a package, the imported package will be initialized only once.

* Conformance tests may now include disruptive tests. If you are running tests against a live cluster, consider skipping those tests tagged as `Disruptive` to avoid non-test workloads being impacted. Be aware, skipping any conformance tests (even disruptive ones) will make the results ineligible for consideration for the CNCF Certified Kubernetes program. ([#82664](https://github.com/kubernetes/kubernetes/pull/82664), [@johnSchnake](https:/...

pkg syscall (netbsd-arm64-cgo), type IfData struct, Ibytes uint64
pkg syscall (netbsd-arm64-cgo), type IfData struct, Ierrors uint64
pkg syscall (netbsd-arm64-cgo), type IfData struct, Imcasts uint64
pkg syscall (netbsd-arm64-cgo), type IfData struct, Ipackets uint64
pkg syscall (netbsd-arm64-cgo), type IfData struct, Iqdrops uint64
pkg syscall (netbsd-arm64-cgo), type IfData struct, Lastchange Timespec

* [IPVS] Introduces flag ipvs-strict-arp to configure stricter ARP sysctls, defaulting to false to preserve existing behaviors. This was enabled by default in 1.13.0, which impacted a few CNI plugins. ([#75295](https://github.com/kubernetes/kubernetes/pull/75295), [@lbernail](https://github.com/lbernail))

pkg syscall (freebsd-arm64), type IfData struct, Ibytes uint64
pkg syscall (freebsd-arm64), type IfData struct, Ierrors uint64
pkg syscall (freebsd-arm64), type IfData struct, Imcasts uint64
pkg syscall (freebsd-arm64), type IfData struct, Ipackets uint64
pkg syscall (freebsd-arm64), type IfData struct, Iqdrops uint64
pkg syscall (freebsd-arm64), type IfData struct, Lastchange Timeval

pkg syscall (darwin-arm64), type IfData struct, Ibytes uint32
pkg syscall (darwin-arm64), type IfData struct, Ierrors uint32
pkg syscall (darwin-arm64), type IfData struct, Imcasts uint32
pkg syscall (darwin-arm64), type IfData struct, Ipackets uint32
pkg syscall (darwin-arm64), type IfData struct, Iqdrops uint32
pkg syscall (darwin-arm64), type IfData struct, Lastchange Timeval32