* Allow Secret & ConfigMap keys to contain caps, dots, and underscores ([#25458](https://github.com/kubernetes/kubernetes/pull/25458), [@errm](https://github.com/errm))
* allow watching old resources with kubectl ([#27392](https://github.com/kubernetes/kubernetes/pull/27392), [@sjenning](https://github.com/sjenning))

pkg compress/flate, type ReadError struct, Err error
pkg compress/flate, type ReadError struct, Offset int64
pkg compress/flate, type Reader interface { Read, ReadByte }
pkg compress/flate, type Reader interface, Read([]uint8) (int, error)
pkg compress/flate, type Reader interface, ReadByte() (uint8, error)
pkg compress/flate, type WriteError struct
pkg compress/flate, type WriteError struct, Err error

will no longer return `ErrWaitTimeout` - use the `Interrupted(error) bool` helper to replace checks for `err == ErrWaitTimeout`, or compare specifically to context errors as needed. A future release will make the `ErrWaitTimeout` error private and callers must use `Interrupted()` instead. If you are returning `ErrWaitTimeout` from your own methods, switch to creating a location specific `cause err` and pass it to the new method `wait.ErrorInterrupted(cause) error` which will ensure `Interrupted()` returns...

pkg log/syslog (freebsd-386-cgo), method (*Writer) Debug(string) error
pkg log/syslog (freebsd-386-cgo), method (*Writer) Emerg(string) error
pkg log/syslog (freebsd-386-cgo), method (*Writer) Err(string) error
pkg log/syslog (freebsd-386-cgo), method (*Writer) Info(string) error
pkg log/syslog (freebsd-386-cgo), method (*Writer) Notice(string) error
pkg log/syslog (freebsd-386-cgo), method (*Writer) Warning(string) error

","duration","_this","this","called","$","one","Util","setTimeout","triggerTransitionEnd","getUID","prefix","Math","random","document","getElementById","getSelectorFromElement","element","selector","getAttribute","hrefAttr","trim","querySelector","err","getTransitionDurationFromElement","transitionDuration","css","transitionDelay","floatTransitionDuration","parseFloat","floatTransitionDelay","split","reflow","offsetHeight","trigger","supportsTransitionEnd","Boolean","isElement","obj","nodeType",...

"xml","outerCache","nodeIndex","start","parent","useCache","diff","firstChild","lastChild","pseudo","args","setFilters","idx","matched","not","matcher","compile","unmatched","has","lang","elemLang","hash","location","root","focus","activeElement","err","safeActiveElement","hasFocus","href","tabIndex","enabled","checked","selected","selectedIndex","empty","nextSibling","header","button","_matchIndexes","lt","gt","nth","radio","checkbox","file","password","image","submit","reset","parseOnly","toke...

- Azure: check the nil error before invoke err.Error() ([#96623](https://github.com/kubernetes/kubernetes/pull/96623), [@nilo19](https://github.com/nilo19)) [SIG Cloud Provider]

pkg crypto/tls, method (*CertificateVerificationError) Unwrap() error #48152
pkg crypto/tls, type CertificateVerificationError struct #48152
pkg crypto/tls, type CertificateVerificationError struct, Err error #48152
pkg crypto/tls, type CertificateVerificationError struct, UnverifiedCertificates []*x509.Certificate #48152
pkg crypto/x509, func SetFallbackRoots(*CertPool) #43958
pkg debug/elf, const R_LARCH_32_PCREL = 99 #54222

pkg log/syslog (netbsd-arm64-cgo), method (*Writer) Debug(string) error
pkg log/syslog (netbsd-arm64-cgo), method (*Writer) Emerg(string) error
pkg log/syslog (netbsd-arm64-cgo), method (*Writer) Err(string) error
pkg log/syslog (netbsd-arm64-cgo), method (*Writer) Info(string) error
pkg log/syslog (netbsd-arm64-cgo), method (*Writer) Notice(string) error
pkg log/syslog (netbsd-arm64-cgo), method (*Writer) Warning(string) error

- Failed to provision volume with StorageClass "azurefile-premium": failed to create share andy-mg1121-dynamic-pvc-1a7b2813-d1b7-11e8-9e96-000d3a03e16b in account f7228f99bcde411e8ba4900: failed to create file share, err: storage: service returned error: StatusCode=400, ErrorCode=InvalidHeaderValue, ErrorMessage=The value for one of the HTTP headers is not in the correct format. ([#69718](https://github.com/kubernetes/kubernetes/pull/69718), [@andyzhangx](https://g...