use these prefixed token names, although the grammar itself still
uses the short names (as in the sample rule given above).
+** Variable api.namespace
+
+ The "namespace" variable is renamed "api.namespace". Backward
+ compatibility is ensured, but upgrading is recommended.
+
+** Variable parse.error
+
+ The variable error controls the verbosity of error messages. The
+ use of the %error-verbose directive is deprecated in favor of
+ %define parse.error "verbose".
+
* Changes in version 2.5 (????-??-??):
** IELR(1) and Canonical LR(1) Support
These features are experimental. More user feedback will help to
stabilize them.
+** Multiple %define's for any variable is now an error not a warning.
+
** %define can now be invoked via the command line.
Each of these command-line options