+Changes in version 1.49a:
+
+* Items overflow
+ Bison no longer dumps core when there are too many items, it just
+ dies.
+
+* Token end-of-file
+ The token end of file may be specified by the user, in which case,
+ the user symbol is used in the reports, the graphs, and the verbose
+ error messages instead of `$', which remains being the defaults.
+ For instance
+ %token YYEOF 0
+ or
+ %token YYEOF 0 "end of file"
+\f
+Changes in version 1.30:
+
+* `--defines' and `--graph' have now an optionnal argument which is the
+ output file name. `-d' and `-g' do not change, they do not take any
+ argument.
+
+* `%source_extension' and `%header_extension' are removed, failed
+ experiment.
+
+* Portability fixes.
+\f
+Changes in version 1.29, 2001-09-07:
+
+* The output file does not define const, as this caused problems when used
+ with common autoconfiguration schemes. If you still use ancient compilers
+ that lack const, compile with the equivalent of the C compiler option
+ `-Dconst='. autoconf's AC_C_CONST macro provides one way to do this.
+
+* Added `-g' and `--graph'.
+
+* The Bison manual is now distributed under the terms of the GNU FDL.
+
+* The input and the output files has automatically a similar extension.