Symfony blog posts for December 2025

This week, we published an article about how we controlled 1,200 screens in real time with Symfony during SymfonyCon Amsterdam 2025. We also celebrated a new SymfonyCasts course on building Symfony bundles. Finally, we shared a blog post detailing 20 years of Symfony coding in numbers.

A look at 20 years of Symfony through code statistics, revealing how contributions, complexity, and long-term design choices shaped the framework.

Ever wondered what makes a great Symfony bundle? This new SymfonyCasts course takes you from an empty directory to a production-ready bundle that feels right at home in the Symfony ecosystem.

At SymfonyCon 2025, we wanted to celebrate Symfony’s 20th anniversary with a live, collective experience: 1200 developers holding up their phones while we lit up their screens in real time from the stage. To make that work reliably, we combined Symfony/PHP-FPM for the application logic with a dedicated Mercure/FrankenPHP setup for long‑lived connections, giving us both robustness and massive concurrency. This post walks through the architecture and lessons learned from turning a “simple” colored screen idea into a live demo that worked flawlessly in front of a full conference hall.

This week, Symfony released the maintenance versions 6.4.30 and 7.3.8, as well as the first patch releases of the 7.4 and 8.0 branches: 7.4.1, 8.0.1, 7.4.2, and 8.0.2. In addition, we published a free video of the Symfony AI talk from SymfonyCon Amsterdam 2025, offering an introduction to integrating AI into Symfony applications.

Enjoy Christopher Hertel’s talk “Symfony AI in Action”, now available for free! A clear, practical guide to integrating AI into Symfony and PHP projects.

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This week, development activity focused on fixing the reported bugs from the first stable releases of Symfony 7.4 and 8.0. We also published a recap of the recent SymfonyCon Amsterdam conference and shared more details about the upcoming SymfonyCon Warsaw 2026 event.

Surprise! SymfonyCon is heading back to Warsaw in 2026✨ Join developers from around the world for a full week of workshops, talks, and community magic. Save the dates and get ready for something unforgettable.

SymfonyCon Amsterdam 2025 reunited 1,200+ developers from 38 countries for a week of talks, workshops, and unforgettable community moments. A true celebration of learning, connection, and everything Symfony!