Fabien Potencier

CVEs have not been issued yet unfortunately. Waiting for them to start the release cycle.

As an OSS maintainer, my new rule is that anything a frontier model can find with some reasonable effort is a 0-day. Hence why I'm now shipping security releases on public holidays.

@chris__gilroy @GromNaN @Shyim97 Same models. LLMs can be more focus on new problems when "reasoning about" a version with some security issues already fixes. They can also build on the previous findings and sometimes find "incomplete fixes". I've also spent MANY hours steering my agent, that makes a difference.

@GromNaN @Shyim97 @fabpot Oh I totally get not helping per se, just didn’t see how it’s a big deal when they could just start using that model tomorrow to sling stuff at it. Keep up the great work!

#symfony #twig New security releases are scheduled for tomorrow.

During the last few weeks, the #Symfony core team has been hard at work fixing a long list of vulnerabilities for both #Symfony and #Twig. Today, we're publishing that work in the biggest security patch releases ever. Bare with us and wish us luck 🍀

Hola #Barcelona 👋🏖️ Join us for an exclusive #Symfony & #PHP #meetup 🍻 in the heart of the Eixample 📍 Carrer de Pau Claris, 194 📅 June 25 at 18:00 🎤 @derrabus Build Apps that Welcome Change 🎤 @chr_hertel Building on top of Symfony #AI Sign up 👉 tinyurl.com/yyze72v6

We are aware of the recently disclosed copy.fail vulnerability (CVE-2026-31431) and want to assure our customers that Upsun systems are not affected. The module targeted by this vulnerability is disabled in our platform. We run hardened Linux kernels in which we only enable the components required for our services, minimizing the attack surface. As such, there is no risk of exploitation, and no action is required on your part. We remain committed to the security of our products and will continue to monitor for any developments. If you have any questions or concerns, please do not hesitate to contact our support team. ✨

@khatriafaz @fabpot @jeffrey_way @ashleyhindle @jon_bossenger Yes, it will be streamed on the PHP Annotated YouTube channel by @brendt_gd. Please register on the event landing page to receive a reminder closer to the stream date. You can also click “Notify me” directly on the stream page if that’s more convenient: youtube.com/live/NR9L0zwXJ…

🚀 Introducing the Symfony Tui Component ➡️ symfony.com/blog/introduci…

Here is the PR github.com/symfony/symfon…

As an OSS maintainer, merging older maintained branches up can be challenging in case of conflicts. As agents are now good at following instructions and resolving conflicts, I've just created a SKILL for #symfony that automates most of the work (but keeping the human in the loop)

💻 Pour cette édition #Symfony_Live Paris 2026, Fabien Potencier (@fabpot) enchaîne deux talks ! ⚡ Cette session : "Développer un Coding Agent en PHP : dans les coulisses du "Harness"” ! #PHP #Symfony #TechEvent

The new Symfony TUI lets you create games in the terminal. Put your best AI agent to work and submit your own! github.com/GromNaN/symfon…

Le #symfony_live commence avec la (re) présentation du composant terminal de @symfony par @fabpot

Deployed a new version of ai.symfony.com today - a bit more welcoming for starters to get into Symfony AI I hope :)

My favorite activity when coding: remove code My new favorite activity with my coding agents: let them remove code they generated 😂 Also, I like removing cruft from AGENTS.md or SKILLS.md files Writing code is also about removing code 😀

🤖Fabien Potencier: Keynote à #Symfony_Live Paris 2026 ! “Développer un Coding Agent en PHP : dans les coulisses du 'Harness'” Rendez-vous le 26 mars ! 👀✨ #Symfony #PHP #IA #CodingAgent symfony.com/blog/symfonyli…

💻 Les TUI sont de retour ! Fabien Potencier présente a SymfonyLive Paris: “Concevoir des TUI en PHP : le composant Symfony Terminal” Ne manquez pas ce moment ! #Symfony #PHP #DX #Terminal symfony.com/blog/symfonyli…

In 2013, @fabpot started a challenge of creating a Symfony app with only 1 file and 200 lines of code. Today, I showcase how far we get with modern Symfony in my latest blogpost: wouterj.nl/2026/02/200-li…