</p>

<h2 id="Blocks">Blocks</h2>

<p>
A <i>block</i> is a possibly empty sequence of declarations and statements
within matching brace brackets.
</p>

<pre class="ebnf">
Block         = "{" StatementList "}" .
StatementList = { Statement ";" } .
</pre>

<p>
In addition to explicit blocks in the source code, there are implicit blocks:
</p>

<ol>

- When the `StrictIPCIDRValidation` feature gate is enabled, Kubernetes will be
  slightly stricter about what values will be accepted as IP addresses and network
  address ranges (“CIDR blocks”).
  
  In particular, octets within IPv4 addresses are not allowed to have any leading
  `0`s, and IPv4-mapped IPv6 values (e.g. `::ffff:192.168.0.1`) are forbidden.

creation of GCP Internal Load Balancers from Service objects ([#46663](https://github.com/kubernetes/kubernetes/pull/46663), [@nicksardo](https://github.com/nicksardo))

  * GCE installs will now avoid IP masquerade for all RFC-1918 IP blocks, rather than just 10.0.0.0/8. This means that clusters can be created in 192.168.0.0./16 and 172.16.0.0/12 while preserving the container IPs (which would be lost before). ([#46473](https://github.com/kubernetes/kubernetes/pull/46473), [@thockin]...

pkg syscall (darwin-arm64), type Stat_t struct, Birthtimespec Timespec
pkg syscall (darwin-arm64), type Stat_t struct, Blksize int32
pkg syscall (darwin-arm64), type Stat_t struct, Blocks int64
pkg syscall (darwin-arm64), type Stat_t struct, Ctimespec Timespec
pkg syscall (darwin-arm64), type Stat_t struct, Dev int32
pkg syscall (darwin-arm64), type Stat_t struct, Flags uint32

- For raw block CSI volumes on Kubernetes, kubelet was incorrectly calling CSI NodeStageVolume for every single "map" (i.e. raw block "mount") operation for a volume already attached to the node. This PR ensures it is only called once per volume per node. ([#112403](https://github.com/kubernetes/kubernetes/pull/112403), ...

- Removed withdrawn feature `NetworkPolicyStatus`. ([#115843](https://github.com/kubernetes/kubernetes/pull/115843), [@rikatz](https://github.com/rikatz))

pkg syscall (netbsd-arm64-cgo), type Stat_t struct, Birthtimespec Timespec
pkg syscall (netbsd-arm64-cgo), type Stat_t struct, Blksize uint32
pkg syscall (netbsd-arm64-cgo), type Stat_t struct, Blocks int64
pkg syscall (netbsd-arm64-cgo), type Stat_t struct, Ctimespec Timespec
pkg syscall (netbsd-arm64-cgo), type Stat_t struct, Dev uint64
pkg syscall (netbsd-arm64-cgo), type Stat_t struct, Flags uint32

* Fix log spam due to unnecessary status update when node is deleted. ([#45923](https://github.com/kubernetes/kubernetes/pull/45923), [@verult](https://github.com/verult))
* GCE installs will now avoid IP masquerade for all RFC-1918 IP blocks, rather than just 10.0.0.0/8.  This means that clusters can ([#46473](https://github.com/kubernetes/kubernetes/pull/46473), [@thockin](https://github.com/thockin))

- github.com/Azure/go-autorest/autorest/mocks: [v0.3.0 → v0.4.1](https://github.com/Azure/go-autorest/compare/autorest/mocks/v0.3.0...autorest/mocks/v0.4.1)
- github.com/Azure/go-autorest/autorest: [v0.9.6 → v0.11.1](https://github.com/Azure/go-autorest/compare/autorest/v0.9.6...autorest/v0.11.1)

### OpenStack

In this cycle, SIG OpenStack focused on configuration simplification through smarter defaults and the use of auto-detection wherever feasible (Block Storage API versions, Security Groups) as well as updating API support, including:

*   Block Storage (Cinder) V3 is now supported.
*   Load Balancer (Octavia) V2 is now supported, in addition to Neutron LBaaS V2.
*   Neutron LBaas V1 support has been removed.