P2589R1 static operator[]

Fixes NB CA 065 (C++23 CD).

Author: tkoeppe

source/overloading.tex

@@ -3430,8 +3430,8 @@
 
 \pnum
 A \defnadj{subscripting}{operator function}
-is a function named \tcode{\keyword{operator}[]}
-that is a non-static member function with an arbitrary number of parameters.
+is a member function named \tcode{\keyword{operator}[]}
+with an arbitrary number of parameters.
 It may have default arguments.
 For an expression of the form
 \begin{ncsimplebnf}

source/preprocessor.tex

@@ -1829,7 +1829,7 @@
 \defnxname{cpp_inline_variables}                  & \tcode{201606L} \\ \rowsep
 \defnxname{cpp_lambdas}                           & \tcode{200907L} \\ \rowsep
 \defnxname{cpp_modules}                           & \tcode{201907L} \\ \rowsep
-\defnxname{cpp_multidimensional_subscript}        & \tcode{202110L} \\ \rowsep
+\defnxname{cpp_multidimensional_subscript}        & \tcode{202211L} \\ \rowsep
 \defnxname{cpp_named_character_escapes}           & \tcode{202207L} \\ \rowsep
 \defnxname{cpp_namespace_attributes}              & \tcode{201411L} \\ \rowsep
 \defnxname{cpp_noexcept_function_type}            & \tcode{201510L} \\ \rowsep