introduce -Wdeprecated

[bison.git] / NEWS

diff --git a/NEWS b/NEWS
index bd47608b551782d521d8140b3ff3b89b1588846d..74afbfacab1c1ceabea40264a079fda97fe9aa54 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -6,12 +6,19 @@ GNU Bison NEWS
 
 *** Obsolete features
 
-  Support for YYFAIL is removed, as announced since Bison 2.4.2.
+  Support for YYFAIL is removed (deprecated in Bison 2.4.2).
   Support for yystype and yyltype (instead of YYSTYPE and YYLTYPE)
-  is removed, as announced in Bison 1.875.
+  is removed (deprecated in Bison 1.875).
+  Support for YYPARSE_PARAM is removed (deprecated in Bison 1.875).
 
 ** Warnings
 
+*** Deprecated constructs
+
+  A new warning category, 'deprecated', is used to flag obsolete constructs
+  whose support will be discontinued.  It is enabled by default.  These
+  warnings used to be reported as 'other' warnings.
+
 *** Warning categories are now displayed
 
   For instance:
@@ -35,18 +42,17 @@ GNU Bison NEWS
     3.28-34: warning: type <type3> is used, but is not associated to any symbol
     4.28-34: warning: type <type4> is used, but is not associated to any symbol
 
-*** Undeclared symbols
+*** Undefined but unused symbols
 
-  Bison used to raise an error for %printer and %destructor directives for
-  undefined symbols.
+  Bison used to raise an error for undefined symbols that are not used in
+  the grammar.  This is now only a warning.
 
     %printer    {} symbol1
     %destructor {} symbol2
+    %type <type>   symbol3
     %%
     exp: "a";
 
-  This is now only a warning.
-
 *** Useless destructors or printers
 
   Bison now warns about useless destructors or printers.  In the following
@@ -84,13 +90,13 @@ GNU Bison NEWS
 
 ** C++ skeletons improvements
 
-*** parser header (%defines) is no longer mandatory (lalr1.cc)
+*** The parser header is no longer mandatory (lalr1.cc, glr.cc)
 
-  In which case, if needed, the support classes are defined in the generated
-  parser, instead of additional files (location.hh, position.hh and
-  stack.hh).
+  Using %defines is now optional.  Without it, the needed support classes
+  are defined in the generated parser, instead of additional files (such as
+  location.hh, position.hh and stack.hh).
 
-*** locations are no longer mandatory (lalr1.cc, glr.cc)
+*** Locations are no longer mandatory (lalr1.cc, glr.cc)
 
   Both lalr1.cc and glr.cc no longer require %location.
 
@@ -142,6 +148,22 @@ GNU Bison NEWS
 * Noteworthy changes in release ?.? (????-??-??) [?]
 
 
+* Noteworthy changes in release 2.6.2 (2012-08-03) [stable]
+
+** Bug fixes
+
+  Buffer overruns, complaints from Flex, and portability issues in the test
+  suite have been fixed.
+
+** Spaces in %lex- and %parse-param (lalr1.cc, glr.cc)
+
+  Trailing end-of-lines in %parse-param or %lex-param would result in
+  invalid C++.  This is fixed.
+
+** Spurious spaces and end-of-lines
+
+  The generated files no longer end (nor start) with empty lines.
+
 * Noteworthy changes in release 2.6.1 (2012-07-30) [stable]
 
  Bison no longer executes user-specified M4 code when processing a grammar.