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Fabien Potencier

@fabien.potencier.org
1.8K followers 36 following 40 posts

@Symfony Founder and Project Lead @upsun CPTO

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Fabien Potencier @fabien.potencier.org · 15/08/2026
Small vacation project: a #Symfony LSP server. To be announced next Monday, but just for you, here is the GitHub repo: github.com/symfony/lang... and the link for the VS Code native integration: marketplace.visualstudio.com/items?itemNa... Yes, heavily written by LLMs :)
github.com
Releases · symfony/language-tools
Symfony-aware completion, navigation and diagnostics through the Language Server Protocol - symfony/language-tools
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Upsun @upsun.com · 23/06/2026
AI made engineers faster. It didn't make teams faster. The constraint was never typing; it was everything around it. The SDLC is being rewritten, and we'd like to rewrite it with you. That's why we're introducing Upsun Dispatch. 🚀 Launching September 2026 👉 Read the story: upsun.com/blog/introdu...
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Fabien Potencier @fabien.potencier.org · 15/06/2026
Great teaser for the upcoming #PHP documentary. Super happy to be part of it. #symfony
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Fabien Potencier @fabien.potencier.org · 12/06/2026
Nowadays I barely write code without an LLM, and my OSS contribs has gone through the roof. Look at #Twig. Steve Yegge's 8 levels of AI-assisted development described my last 2 years exactly. But at the org level, challenges are different. So I tried to map an org scale: upsun.com/blog/8-stage...
t.co
8 Stages of AI Engineering Maturity for Teams | Upsun
Most teams already use AI. The question is whether your org is moving together. A framework for taking your whole team from chaos to autonomous agents.
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Upsun @upsun.com · 09/06/2026
Most engineering teams already use AI. The real gap is whether the whole org is moving together. @fabien.potencier.org maps 8 stages of AI maturity, from leadership silence to autonomous agents. See where your team stands 👉 upsun.com/blog/8-stage...
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Fabien Potencier @fabien.potencier.org · 24/05/2026
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.
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Fabien Potencier @fabien.potencier.org · 24/05/2026
#symfony #twig New security releases are scheduled for tomorrow.
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Fabien Potencier @fabien.potencier.org · 20/05/2026
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 🍀
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Symfony @symfony.com · 26/03/2026
🔥 On démarre la journée à #Symfony_Live Paris 2026 ! Fabien Potencier, @fabpot ouvre le bal avec “Concevoir des TUI en PHP” 💻✨ TUI, Symfony Terminal, et même une PR en live 👀🚀 Let’s go Paris! 🇫🇷🔥 #Symfony #PHP #TechEvent
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Symfony @symfony.com · 26/03/2026
💻 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
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Fabien Potencier @fabien.potencier.org · 11/03/2026
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 😀
agents.md
AGENTS.md
AGENTS.md is a simple, open format for guiding coding agents. Think of it as a README for agents.
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Symfony @symfony.com · 06/03/2026
🤖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/symfonylive-paris-…
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Fabien Potencier @fabien.potencier.org · 09/02/2026
I like when both the agent and me think the same at about the same time. I was about to send it a steer message saying "Stop over-engineer the solutions" when it "thought" the same "Let me undo my overengineered approach and keep it simple. The original ..."
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Symfony @symfony.com · 30/01/2026
Hardening Symfony: Recent Security Improvements ➡️ symfony.com/blog/hardening-symfony-…
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Symfony @symfony.com · 21/01/2026
Join #Symfony in London, UK! 💻✨💂 A #MeetUp with great talks, tips from the Core Team, and Symfony community 🙌 🎤 On stage: ➡️Nicolas Grekas: “A Year of Symfony!” 🚀 ➡️Yannick Chenot: “Escaping the Code Maze” 🧩 📍WeWork, 90 York Way, London N1 (Floor 7) 🎟️Tickets: www.meetup.com/symfony/even... #PHP
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Fabien Potencier @fabien.potencier.org · 18/01/2026
2026 might be the year every developer wants to build their own agent (coding, personal, ...). A bit like frameworks 10/15 years ago. Great learning exercise and highly recommend as a weekend project.
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Fabien Potencier @fabien.potencier.org · 09/01/2026
2025: LLMs augments Fabien's ability to deliver better and faster 💪 2026: Fabien augments LLMs to help them do a better job 🏃 2027: Is Fabien still needed? 😱
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Symfony @symfony.com · 24/12/2025
🌟 Symfony AI v0.1.0 - First Tagged Release ➡️ symfony.com/blog/symfony-ai-v0-1-0-…
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Fabien Potencier @fabien.potencier.org · 23/12/2025
I had to work hard to help Claude do a good job, but apparently, it enjoyed the experience 🤣 "This has been a great collaborative optimization session - each suggestion made the code cleaner and more efficient. Thanks for the excellent insights!"
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Wouter de Jong @wouterj.bsky.social · 17/12/2025
wouterj.nl/2025/12/symfony-20-year To celebrate 20 years of Symfony, I've crunched a bunch of numbers and share some memories of Symfony development since the 2.0 release in 2011.
wouterj.nl
Symfony 20 year!
This year, Symfony celebrates its 20 year anniversary. Let’s dive into some statistics of years of making web development history.
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Symfony @symfony.com · 11/12/2025
🎥 Enjoy Christopher Hertel's talk for FREE! Christopher Hertel breaks down practical, real-world AI in “Symfony AI in Action”. Watch now! + All Replays are available now too! #Symfony #PHP #AI #SymfonyCon symfony.com/blog/symfonycon-amsterd…
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Fabien Potencier @fabien.potencier.org · 06/12/2025
This morning, I woke up energized and eager to code. Two years ago, I presented a Terminal component at #SymfonyCon, but never published it due to its flawed design. I've now started over with a better plan to address these challenges. Let's see how far I can go. #symfony
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Fabien Potencier @fabien.potencier.org · 27/11/2025
Today, at SymfonyCon, we're celebrating 20 years of #Symfony in Amsterdam! Thank you all for your support.
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Yonel Ceruto @yceruto.bsky.social · 09/11/2025
Symfony 7.4 brings a cleaner way to define console inputs: command arguments and options can now be mapped directly to PHP classes and enums using attributes like `#[MapInput]`, `#[Argument]`, and `#[Option]`. Type-safe, structured input for your CLI commands 🎉🍕🥓 #Symfony #PHP #DX
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Symfony @symfony.com · 05/11/2025
🎉 Something epic is coming for Symfony’s 20th anniversary… 📖 A comic book telling the story of Symfony, 20 years in the making, like never before. Can you guess what it is? #Symfony #DevCommunity #PHP
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Fabien Potencier @fabien.potencier.org · 27/10/2025
I will be speaking at @dotaiconf next week. You can still secure your seat. Use the SPEAKER15 promo code to get 15% off 😉
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Fabien Potencier @fabien.potencier.org · 15/10/2025
20 years ago, #Symfony was publicly released as a #PHP Open-Source project. Thank you all for your support along the years.
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Symfony @symfony.com · 13/10/2025
This week, Symfony proudly celebrates 20 incredible years of innovation, friendship, and open-source passion — we’ve created a special page to relive the memories and thank everyone who made this journey possible: symfony.com/20years 🫶 symfony.com/blog/celebrating-20-yea…
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Symfony @symfony.com · 06/10/2025
#SymfonyCon Amsterdam 2025: Regular tickets end this Wednesday — secure your seat before prices go up! ⏳ Join us for 4 days of talks, workshops, and community vibes! Grab your ticket now 👉 symfony.com/blog/symfonycon-amsterd…
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Upsun @upsun.com · 23/09/2025
🎉 We are very excited and proud to announce that today, Platform.sh officially becomes Upsun, the cloud application platform humans and robots love 🎉 bit.ly/46ArX8S #Upsun #News #TechNews
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Fabien Potencier @fabien.potencier.org · 19/09/2025
Back from the #APIPlatformCon in Lille. Great vibes there! Here is my talk slides: How AI agents are changing the way we should build APIs: speakerdeck.com/fabpot/how-a...
speakerdeck.com
How AI agents are changing the way we should build APIs
How AI agents are changing the way we should build APIs
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Symfony @symfony.com · 05/09/2025
🙌 Symfony to Provide the Official MCP SDK ➡️ symfony.com/blog/symfony-to-provide…
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Fabien Potencier @fabien.potencier.org · 28/08/2025
This is a sad day for the entire #symfony community. My thoughts and love are with Leann and Beckett.
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Symfony @symfony.com · 27/08/2025
📢 The #SymfonyCon Amsterdam 2025 workshop lineup is live! 🔥 2 days with top Symfony experts! 📅 Nov 25–26 🎟️ Save your spot now: live.symfony.com/2025-amsterdam-con… symfony.com/blog/symfonycon-amsterd…
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Fabien Potencier @fabien.potencier.org · 16/08/2025
Join our first #Symfony #AI hackathon!
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Symfony @symfony.com · 06/08/2025
👾 Code. Collaborate. Contribute. Join us in Amsterdam on Nov 29 for Symfony Hackday! We’ll onboard newcomers, work on the roadmap, and strengthen the community 💪 Don’t miss it! symfony.com/blog/symfonycon-amsterd…
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Symfony @symfony.com · 17/07/2025
🎉 SymfonyCon Amsterdam 2025 is coming! All practical info : venue, schedule, travel, and more, is now available. 📥 Get it here or in the QR code below: 👉 live.symfony.com/2025-amsterd... Can’t wait to see you there! 🧡 #SymfonyCon #SymfonyConAmsterdam2025
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Tobias Nyholm @nyholm.bsky.social · 11/07/2025
If you want to help a big open source project form the beginning. Have a look here. Symfony AI just became public with a lot of cool stuff but it is a bit rough on the edges. Help us make it shine in the next few weeks
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Symfony @symfony.com · 11/07/2025
🚀 Kicking off the Symfony AI Initiative ➡️ symfony.com/blog/kicking-off-the-sy…
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Tobias Nyholm @nyholm.bsky.social · 07/07/2025
This is one of the best release notes I've read this year. github.com/PHP-CS-Fixer... Congratulations to the release of PHP 8.4 support <3
github.com
Release v3.80.0 Alexander · PHP-CS-Fixer/PHP-CS-Fixer
Long-awaiting official support for PHP 8.4 in PHP-CS-Fixer is finally here 🥳! We know, it's long overdue, but for a reason... Let us explain a bit, for transparency and clean atmosphere around the ...
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Symfony @symfony.com · 27/06/2025
⏳ Call for Papers still open! This is your Chance to Speak at SymfonyCon Amsterdam 2025! 📅 Deadline: July 16, 2025 📝 Submit your talk or workshop now, we want to hear from you! 🙌 New to speaking? Our mentoring program is here to help. 💼 Travel, hotel & speaker gift! #SymfonyCon
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Yonel Ceruto @yceruto.bsky.social · 14/06/2025
Building multistep forms with Symfony FormFlow will be easier, more flexible, and DX-first. Directly integrated into the Form component! Here’s the Symfony 7.4 PR: github.com/symfony/symf... Want to try it out? Play with the demo app 👇 github.com/yceruto/form... #Symfony #PHP #DX #FormFlow
github.com
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Symfony @symfony.com · 29/05/2025
🌟 Symfony 7.3 curated new features ➡️ symfony.com/blog/symfony-7-3-curate…
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platform.sh @platform.sh · 14/05/2025
🎉 We're proud to announce that @fabien.potencier.org has been appointed Chief Technology Officer at Platform.sh, succeeding co-founder @damientournoud.bsky.social 🎉 Read the full announcement here 👉 brnw.ch/21wSE2T
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Symfony @symfony.com · 08/05/2025
🚀 New in Symfony 7.3: JsonPath Component ➡️ symfony.com/blog/new-in-symfony-7-3…
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Antoine Bluchet @soyuka @soyuka.me · 07/05/2025
Like always @blackfire.io helped a lot measuring the impact of the new @symfony.com JsonStreamer component! Serialization's share of the total request fell from 83% to 45% thanks to streaming – achieving an awesome 70% time saving and 50% memory reduction!
1k items apiplatform collection with serializer 1k items apiplatform collection with jsonstreamer
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Symfony @symfony.com · 25/04/2025
Introducing A Streaming AMQP Transport for Symfony Messenger ➡️ symfony.com/blog/introducing-a-stre…
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weaverryan.bsky.social @weaverryan.bsky.social · 17/03/2025
SymfonyDay Chicago is starting! SO many people have come to nerd out about Symfony and support us. It’s crazy! ❤️
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Fabien Potencier @fabien.potencier.org · 17/03/2025
We're all ready to start #Symfony Day Chicago conference at Google. Very exciting!
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Symfony @symfony.com · 10/03/2025
2025, what a year for the PHP community! 🎉 30 years of #PHP, 25 years of #AFUP, 20 years of #Symfony, 10 years of @api-platform.com – let’s celebrate together! 🎂 Join @afup.org, @sensiolabs.com, @les-tilleuls.coop & Symfony this year’s events for special talks, retrospectives, and more! 🫶
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