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NEWS and README update

For the next version, which should be fairly soon.


diff --git a/NEWS b/NEWS
index bc14a8b..161fe6d 100644
--- a/NEWS
+++ b/NEWS
 Note also the list of incompatibilities in the README file.
+Changes from 5.1.1 to 5.2
+The new module zsh/param/private can be loaded to allow the shell
+to define parameters that are privatel to a function scope (i.e. are
+not propagated to nested functions called within this function).
+The parameter flag ${(P)...} is now more useful when it appears in
+a nested expansion.  For example,
+  typeset -A assoc=(one un two deux three trois)
+  name=assoc
+  print ${${(P)name}[one]}
+now prints "un".  In previous versions of the shell the value of the
+substitution was fully expanded on return from ${(P)name}, making
+associative array subscripting difficult.  As a side effect, flags
+for formatting appearing in the inner substitution now affect the
+substitution of the name (into "assoc" in this case), which is not
+normally useful: flags that should apply to the value must be in the
+outer substitution.
+The GLOB_STAR_SHORT option allows the pattern **/* to be shortened to
+just ** if no / follows. so **.c searches recursively for a file whose
+name has the suffix ".c".
+The effect of the WARN_CREATE_GLOBAL option has been significantly
+extended, so expect it to cause additional warning messages about
+parameters created globally within function scope.
 Changes from 5.1 to 5.1.1
diff --git a/README b/README
index 9571521..e05be50 100644
--- a/README
+++ b/README
@@ -32,8 +32,16 @@ Zsh is a shell with lots of features.  For a list of some of these, see the
 file FEATURES, and for the latest changes see NEWS.  For more
 details, see the documentation.
-Incompatibilites between 5.0.8 and 5.1
+Incompatibilities between 5.1 and 5.2
+The behaviour of the parameter flag (P) has changed when it appears
+in a nested parameter group, in order to make it more useful in
+such cases.  A (P) in the outermost parameter group behaves as
+before.  See NEWS for more.
+Incompatibilities between 5.0.8 and 5.1
 The default behaviour when text is pasted into an X Windows terminal has
 changed significantly (unless you are using a very old terminal emulator

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