diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 1e7b1b0f77..a52736aa75 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2011-10-16  Doug Evans  <dje@google.com>
+
+	* NEWS: Document python gdb.printing.register_pretty_printer's new
+	`replace' parameter.
+
 2011-10-14  Keith Seitz  <keiths@redhat.com>
 
 	PR c++/13225
diff --git a/gdb/NEWS b/gdb/NEWS
index 1e294e02b8..eab6bdc6ac 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -15,6 +15,10 @@
 
 * Python scripting
 
+  ** The register_pretty_printer function in module gdb.printing now takes
+     an optional `replace' argument.  If True the new printer replaces any
+     existing one.
+
   ** The "maint set python print-stack on|off" command has been
      deprecated, and a new command: "set python print-stack on|off" has
      replaced it.  Additionally, the default for "print-stack" is now