Bison News
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-* Changes in version 2.5_rc1 (2011-05-01):
+* Changes in version 2.5.1 (????-??-??):
+
+** Minor improvements have been made to the manual.
+
+* Changes in version 2.5 (2011-05-14):
** Grammar symbol names can now contain non-initial dashes:
bison -Werror,none,yacc gram.y
-*** The `none' category now disables all Bison warnings.
+*** The `none' category now disables all Bison warnings:
Previously, the `none' category disabled only Bison warnings for
which there existed a specific -W/--warning category. However,
bison -Wnone gram.y
+** Precedence directives can now assign token number 0:
+
+ Since Bison 2.3b, which restored the ability of precedence
+ directives to assign token numbers, doing so for token number 0 has
+ produced an assertion failure. For example:
+
+ %left END 0
+
+ This bug has been fixed.
+
* Changes in version 2.4.3 (2010-08-05):
** Bison now obeys -Werror and --warnings=error for warnings about