**phpList4** phpList4 is a complete Symfony-based rewrite of phpList3, modernizing the platform’s architecture, codebase, and development workflow. It is designed to improve maintainability, extensibility, performance, and developer experience while preserving phpList’s core functionality for email campaign and subscriber management. The rewrite introduces modern PHP standards, dependency management with Composer, improved APIs, and a more scalable foundation for future development. Its ecosystem consists of modular services, client libraries, and reusable Symfony bundles, including: * https://github.com/phpList/core — core application and business logic * https://github.com/phpList/rest-api — API layer for external integrations * https://github.com/phpList/web-frontend — modern frontend interface * https://github.com/phpList/base-distribution — reusable API integration package * https://github.com/TatevikGr/rss-bundle — RSS feed integration and content processing * https://github.com/TatevikGr/phplist-api-client-js — JavaScript client SDK * https://github.com/TatevikGr/phplist-api-client — PHP client library [[phplist4:installation|]]