- `kubectl prune v2`: Switched annotation from `contains-group-resources` to `contains-group-kinds`,
  because this is what we defined in the KEP and is clearer to end-users. Although the functionality is
  in `alpha`, we will recognize the prior annotation. This migration support will be removed in `beta`/`GA`. ([#118942](https://github.com/kubernetes/kubernetes/pull/118942), [@justinsb](https://github.com/justinsb))

'\000'
'\007'
'\377'
'\x07'
'\xff'
'\u12e4'
'\U00101234'
'\''         // rune literal containing single quote character
'aa'         // illegal: too many characters
'\k'         // illegal: k is not recognized after a backslash
'\xa'        // illegal: too few hexadecimal digits
'\0'         // illegal: too few octal digits
'\400'       // illegal: octal value over 255
'\uDFFF'     // illegal: surrogate half