Tag: PrestaShop 9.0

What is New in PrestaShop 9.0? Full Feature & Migration Guide

Why PrestaShop?

PrestaShop is a leading open-source e-commerce platform, known for its flexibility, powerful features, and zero licensing costs. Known for its intuitive interface, multi-language/currency support, and rich ecosystem of modules and themes, it’s ideal for SMEs creating customised online stores. PrestaShop 9.0 represents a significant milestone, delivering performance upgrades and essential architectural advancements reflecting modern development standards, scalability, and long-term maintainability.

What’s New in PrestaShop 9.0?

PrestaShop 9.0 brings complete core framework modernisation—a major leap forward, redefining how developers and store owners interact with the system.

Core Architecture Changes

Full Symfony Integration: PrestaShop 9 finalises its transition to the Symfony framework, providing a modern, stable foundation for future development. Legacy classes and outdated controllers have been deprecated or replaced, making the system more maintainable and aligned with best practices.

PHP 8.1+ Support: Requires PHP 8.1 or higher, ensuring compatibility with the latest features, improved security, and faster performance.

Doctrine DBAL: The Database Abstraction Layer improves database interactions, offering better abstraction, query building, and testability—especially beneficial for large-scale customisations.

Composer-Centric Development: Composer 2.x now plays a central role in the development workflow, handling dependency management, module integration, and autoloading seamlessly.. This simplifies version control and enhances CI/CD compatibility.

Back Office & Developer Enhancements

While focusing on backend improvements, merchants and developers will notice:

  • Faster page loads and improved server response times
  • Cleaner codebase through legacy logic removal
  • Improved modularity for cleaner, standalone modules
  • Stronger test coverage for stable, secure releases

Though UI changes are minimal, these under-the-hood updates drastically enhance store stability and maintainability.

Migration Guide: From PrestaShop 8 to 9

Method 1: One-Click Upgrade (Recommended)

Available Tools:

  • Official 1-Click Upgrade Module: Standard PrestaShop upgrade module handling version transitions automatically
  • MigrationPro: Third-party solution supporting migration with comprehensive data transfer
  • PrestaShop Migrator: Alternative one-click solution for seamless upgrades

Advantages:

  • Automated process with minimal manual intervention
  • Built-in data integrity checks
  • Reduced human error risk
  • Faster migration time
  • Automated backup creation

Autoupgrade Backup Process:

  1. BackupInitialization: Process start, clearing leftover temporary files
  2. BackupFiles: Complete backup of store files, themes, modules, images, and custom code
  3. BackupDatabase: Creates a complete backup of the entire database, including all tables and stored data.
  4. Let me know if you prefer a more concise or more detailed version.
  5. BackupComplete: Process finalisation with verification

Rollback Process: If the upgrade encounters issues, easily revert through the autoupgrade module’s “Rollback” section by selecting the backup archive and monitoring rollback progress.

Data Migration: Automatically handles transfer of products, categories, attributes, customer accounts, order history, CMS pages, configuration settings, images, and compatible module configurations.

Method 2: Manual Migration (Time-Intensive)

Fresh PrestaShop 9 installation followed by manual data migration.

Process Overview:

  1. Review Server Requirements: PHP 8.1+, MySQL 5.7+/MariaDB 10.3+, Composer 2.x, Apache/Nginx
  2. Complete Backup: Database, files, configuration, custom code
  3. Install PrestaShop 9.0: Fresh installation via Git and Composer
  4. Data Migration Strategy: Export from PS8 (products, customers, orders, CMS, configurations) and import to PS9 using native tools, third-party modules, or manual entry
  5. Module Compatibility Assessment: Audit existing modules, update compatible ones, identify alternatives for incompatible modules
  6. Theme Reconstruction: Rebuild themes using PS9’s updated architecture, adapt to Symfony requirements
  7. Comprehensive Testing: Front office (browsing, checkout, payments, mobile) and back office (product management, orders, reporting) functionality

Recommendation

Method 1(One-Click Upgrade) is strongly recommended for most merchants due to:

  • Significantly reduced migration time
  • Lower risk of data loss/corruption
  • Automated handling of complex data relationships
  • Built-in rollback capabilities
  • Professional support availability

Consider Method 2 (Manual Migration) only for specific customisation requirements necessitating a fresh installation or when automated tools are incompatible.

Post-Migration Checklist

Regardless of the chosen method:

  • Verify all critical store functions
  • Test payment and shipping integrations
  • Confirm SEO settings and URL structures
  • Update DNS and SSL certificates if needed
  • Monitor site performance and loading speeds
  • Train staff on interface changes

Final Thoughts

PrestaShop 9.0 sets a strong course toward improved speed, enhanced security, and a more developer-centric ecosystem. Although upgrading requires planning and effort, long-term benefits are considerable—better performance, cleaner code, enhanced scalability, and modern tooling.

If running an older version, evaluate the long-term value of moving to Prestashop 9. If unsure about the process or lacking in-house developers, consulting with a PrestaShop expert or certified partner is highly recommended.

Still deciding whether to switch?

If you’re unsure whether moving from PrestaShop 8 to 9 is the right step for your store, we invite you to check out our detailed comparison and expert insights.

Discover the key benefits, potential risks, and real-world impact of migrating — and make an informed decision for your business.

Explore the PrestaShop 8 vs 9 Comparison Guide

Should You Move from PrestaShop 8.1 to 9.0? A Complete Feature Comparison

With the release of PrestaShop 9.0, the platform is moving toward a more modern, performance-oriented, and developer-friendly future. However, as with any major update, merchants and developers are left with an important question: Is now the right time to migrate from PrestaShop 8.1?

In this blog, we’ll explore the key differences between PrestaShop 8.1 and 9.0. From performance upgrades to developer tools, we’ll cover everything you need to know to make an informed decision about your store’s future.

Symfony Framework Upgrade: From 4.4 to 6.4

To begin with, one of the most significant changes in PrestaShop 9.0 is the upgrade of the Symfony framework from version 4.4 to Symfony 6.4, the latest long-term support (LTS) release. This transition ensures better stability, security, and access to modern development tools.

Symfony 6.4 will be maintained with bug fixes through November 2026 and security patches until November 2027, ensuring long-term stability for evolving projects. By comparison, Symfony 4.4—used in PrestaShop 8.1—has already reached the end of its support life. Therefore, PrestaShop 9.0 becomes the smarter choice for long-term projects.

PHP Compatibility and Performance Enhancements

In addition, PrestaShop 9.0 introduces support for PHP 8.1, 8.2, and 8.3. This allows merchants to benefit from improved performance, better memory handling, and modern PHP features.

Unlike PrestaShop 8.1, which stopped at PHP 8.1, the new version embraces the latest PHP releases, representing a major step forward. As a result, PrestaShop 9.0 is better aligned with modern PHP standards and development practices. However, keep in mind that older hosting environments and custom code may require updates to ensure compatibility.

Modern API Platform for Headless Commerce

Furthermore, PrestaShop 9.0 brings a brand-new API system based on API Platform v3, dramatically improving how it interacts with external applications.

This makes it ideal for headless commerce architectures, mobile app integrations, and third-party services. In contrast, PrestaShop 8.1 relied on a legacy API, which lacked the flexibility and scalability modern developers expect. As a result, the new API system opens up a world of opportunities for automation and integration.

PrestaShop 9 debuts a completely reimagined Admin API, built using API Platform—a cutting-edge PHP framework known for its flexibility and power. This innovation marks a significant leap toward creating a more open, extensible, and developer-focused PrestaShop environment.

Here’s what the new Admin API offers:

  • Simplified integration with external platforms such as ERPs, CRMs, and marketing tools.
  • Automation-ready architecture that helps reduce manual store management and boosts operational efficiency.
  • RESTful structure with JSON formatting, ensuring ease of use for developers accustomed to modern API standards.
  • Future-ready modularity, allowing the system to grow and adapt with community and business demands.

It’s worth noting that the Admin API is still evolving. While the core framework is already in place, additional features and endpoints are being actively developed.

Key Hook Updates in PrestaShop 9

 PrestaShop 9 retains most of the widely used hooks from version 8 to ensure module and theme compatibility. Common front-office hooks like displayHeader, displayFooter, displayHome, and displayProductButtons remain supported. In the back office, important hooks such as displayBackOfficeHeader, displayAdminOrderMain, and displayAdminProductsExtra are still available for extending core functionality.

Alongside these, PrestaShop 9 introduces modern Symfony-based hooks like actionSymfonyResponse, actionAfterCartSave, and actionProductFormBuilderModifier. These offer a cleaner, event-driven approach to customisation and are part of the platform’s move toward a more modular, scalable structure.

Redesigned Back Office Using Symfony and Twig

Another significant improvement is the full revamp of the back office, now built with Symfony and Twig for a more modern and maintainable structure. This results in a more intuitive, mobile-friendly, and user-centred admin experience.

For store owners, the redesigned layout means easier navigation and improved productivity. For developers, the shift supports cleaner templating and reduces legacy code dependencies. On the other hand, PrestaShop 8.1 retains a more traditional interface, which may now feel outdated in comparison.

Developer-Focused Improvements

Additionally, PrestaShop 9.0 has replaced several outdated libraries used in previous versions. For example:

  • Guzzle HTTP Client → Symfony HTTP Client 
  • SwiftMailer → Symfony Mailer 

These updates result in a more secure, efficient, and future-proof module and email handling.

Moreover, the login system has been modernised. Legacy hooks have been removed, and a new actionBackOfficeLoginForm hook has been introduced, offering cleaner and more customizable authentication flows.

Transition Toward Twig Templates

Importantly, PrestaShop 9.0 also makes a bold move toward full Twig integration, gradually replacing the legacy Smarty engine. Twig is now widely used in both front and back offices, offering more readable, modular, and reusable templates.

For theme developers, this is a significant improvement. In contrast, PrestaShop 8.1’s reliance on Smarty limits flexibility and long-term maintainability.

Should You Upgrade to PrestaShop 9.0?

PrestaShop 9.0 brings major improvements—but before upgrading, make sure your store is ready to handle the change. If your themes, modules, and hosting environment are compatible—or can be easily updated—then migrating can bring notable performance and UX benefits.

Alternatively, if your current store depends heavily on legacy plugins or complex custom code, it might be wiser to wait until broader module support becomes available. Testing in a staging environment is highly recommended before committing to a full upgrade.

Migration Tips for Store Owners

Before making the switch, follow these best practices:

  • Backup your entire store, including the database and any custom files.
  • Test the upgrade in a staging environment first to avoid disrupting your live store.
  • Verify compatibility for all third-party themes and modules.
  • Monitor community feedback for bug reports and migration issues.
  • Conduct thorough testing, especially checkout, payment, and product display areas. 

Final Thoughts

PrestaShop 9.0 marks a major leap toward a modern, secure, and scalable e-commerce platform. From faster performance and updated frameworks to a cleaner developer experience, it brings meaningful benefits for merchants and developers alike.

In conclusion, while migration requires effort and planning, the long-term gains make it a worthwhile investment. Whether you’re a seasoned PrestaShop user or planning your first store, now is an excellent time to explore what version 9.0 can do for your business.

If you’re looking for a reliable solution to ensure a smooth upgrade, KnowBand offers custom module development and PrestaShop 9.0-ready extensions that can accelerate your transition. Their expert support and robust library of PrestaShop modules make them a valuable partner during major upgrades.