News and compat annotation for #28902 (sort! for multidimensional arrays).

Author: fredrikekre

NEWS.md

@@ -75,6 +75,7 @@ Standard library changes
   * `Future.copy!` has been moved to `Base` ([#29178]).
   * New `ncodeunits(c::Char)` method as a fast equivalent to `ncodeunits(string(c))` ([#29153]).
   * `mean` and `var` now handles the empty case ([#29033]).
+  * New `sort!(::AbstractArray; dims)` method that can sort the array along the `dims` dimension ([#28902]).
 
 Compiler/Runtime improvements
 -----------------------------

base/sort.jl

@@ -992,6 +992,9 @@ See [`sort!`](@ref) for a description of possible keyword arguments.
 
 To sort slices of an array, refer to [`sortslices`](@ref).
 
+!!! compat "Julia 1.1"
+    This function requires at least Julia 1.1.
+
 # Examples
 ```jldoctest
 julia> A = [4 3; 1 2]