clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
(* Title: HOL/Imperative_HOL/Imperative_HOL.thy
Author: John Matthews, Galois Connections; Alexander Krauss, Lukas Bulwahn & Florian Haftmann, TU Muenchen
*)
section {* Entry point into monadic imperative HOL *}
theory Imperative_HOL
imports Array Ref
begin
end