- Adds extensive class fields support: new rule options, updates to existing rules (complexity, no‑undef, no‑unused‑vars, etc.), and parser enhancements for class fields and class‑related syntax.
- Introduces multiple breaking changes: reserved words disallowed in ES3, removal of meta.docs.category, strict package exports, required meta for fixable rules and suggestions, dropping Node 10/13/15, and removal of codeframe/table format...
- Includes numerous documentation updates, bug fixes, and sponsor README synchronization across the project.