### Bug fixes

Fix a bug in the reuse of compiled rules (which sometimes got confused by inline rules).

The error message for overlapping tokens is a bit more concrete now, including an example of a string that matches both tokens.

### New features

Add support for grammar dialects.

Add support for external specializers.

Commas in precedence tag, dialect, or external token lists are now optional.

### Breaking changes

Changes the serialized parser format.