* Deprecate outofdisk-transition-frequency and low-diskspace-threshold-mb flags ([#41941](https://github.com/kubernetes/kubernetes/pull/41941), [@dashpole](https://github.com/dashpole))
* Add OWNERS for sample-apiserver in staging ([#42094](https://github.com/kubernetes/kubernetes/pull/42094), [@sttts](https://github.com/sttts))

1.25rem !default;\n$rfs-unit: rem !default;\n\n@if $rfs-unit != rem and $rfs-unit != px {\n  @error \"`#{$rfs-unit}` is not a valid unit for $rfs-unit. Use `px` or `rem`.\";\n}\n\n// Breakpoint at where values start decreasing if screen width is smaller\n$rfs-breakpoint: 1200px !default;\n$rfs-breakpoint-unit: px !default;\n\n@if $rfs-breakpoint-unit != px and $rfs-breakpoint-unit != em and $rfs-breakpoint-unit != rem {\n  @error \"`#{$rfs-breakpoint-unit}` is not a valid unit for $rfs-breakpoint-unit....

  Distributions or administrators of Kubernetes may want to control that new Service CIDRs added to the cluster does not overlap with other networks on the cluster, that only belong to a specific range of IPs or just simple retain the existing behavior of only having one ServiceCIDR per cluster.  An example of a Validation Admission Policy to achieve this is:
  
  ---
  apiVersion: admissionregistration.k8s.io/v1

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.pace .pace-activity {\n  border-color: #007bff transparent transparent;\n}\n\n.pace-center-radar-primary .pace .pace-activity::before {\n  border-color: #007bff transparent transparent;\n}\n\n.pace-center-simple-primary .pace {\n  background: #fff;\n  border-color: #007bff;\n}\n\n.pace-center-simple-primary .pace .pace-progress {\n  background: #007bff;\n}\n\n.pace-material-primary .pace {\n  color: #007bff;\n}\n\n.pace-corner-indicator-primary .pace .pace-activity {\n  background: #007bff;\n}\n\n....

pkg regexp/syntax, const OpStar Op
pkg regexp/syntax, const OpWordBoundary Op
pkg regexp/syntax, const POSIX Flags
pkg regexp/syntax, const Perl Flags
pkg regexp/syntax, const PerlX Flags
pkg regexp/syntax, const Simple Flags
pkg regexp/syntax, const UnicodeGroups Flags
pkg regexp/syntax, const WasDollar Flags
pkg regexp/syntax, func Compile(*Regexp) (*Prog, error)
pkg regexp/syntax, func EmptyOpContext(int32, int32) EmptyOp