I just noticed a new form of
With in its documentation:
specifies that all occurrences of the symbol $x$ in $expr$ should be replaced by $x_0$.
Note the lack of braces around first argument. I can see this also in documentation center of v10.2.
But when I try to use it, I get the standard error message, as in previous versions.
$Version With[x = y, x] (* "10.2.0 for Linux x86 (64-bit) (July 6, 2015)" *)
With::lvlist: Local variable specification x=y is not a List. >>
(* With[x = y, x] *)
Is this another symptom of documentation driven development?
Reported to WRI as [CASE:3390526]