* src/scan-skel.l: Output the base name parts of the parser and

[bison.git] / NEWS

diff --git a/NEWS b/NEWS
index fbbda02775dc88bb4f7ade1d3ede7d1d8d4c45af..90cc34715c608fb239359a6aa5aaa0cacafbf730 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -5,6 +5,10 @@ Changes in version 2.1a:
 
 * DJGPP support added.
 
+* %require "VERSION"
+  To specify that the grammar file depends on features implemented in
+  Bison version VERSION or higher.
+
 * lalr1.cc: The token and value types are now class members.
   The tokens where defined as free form enums and cpp macros.  YYSTYPE
   was defined as a free form union.  Both are now class members:
@@ -13,8 +17,11 @@ Changes in version 2.1a:
 
   If you do not want or can update to this scheme, the directive
   `%define "global_tokens_and_yystype" "1"' triggers the global
-  definition of tokens and YYSTYPE.
+  definition of tokens and YYSTYPE.  This change is suitable both
+  for previous releases of Bison, and this one.
 
+  If you wish to update, then make sure older version of Bison will
+  fail using `%require "2.1a"'.
 
 Changes in version 2.1, 2005-09-16: