- EAV Contact Entry Storage with automatic background migration
- Listings backward compatibility with v6.3.x data structure
- SQL injection security fixes (Action Scheduler cleanup, TRUNCATE)
- WP-Cron fallback for reliable background processing
- ESLint v9 upgrade + 50+ lint warnings fixed
- Translation escaping fixes (esc_html__() consistency)
- Requires WordPress 6.4+, PHP 7.4+

See docs/changelog.md for full history.