February 24-26, 2027
Montreal, Canada
Migrating Legacy Symfony in Production
When inheriting an unmaintained legacy Symfony application, the real question is not “how to migrate”, but rather “where to start without breaking everything”.
In this talk, I share an honest retrospective of a Symfony migration carried out in production, on an aging application with limited documentation, few tests, and dependencies on components that are now obsolete.
In this talk, I share an honest retrospective of a Symfony migration carried out in production, on an aging application with limited documentation, few tests, and dependencies on components that are now obsolete.
arnaud oltra
Arkonium
A PHP/Symfony developer who grew up alongside companies of every size: early-stage startups, a near-unicorn, and everything in between. Before the code, I ran a kitchen brigade, where execution under pressure doesn't forgive improvisation.
One conviction stuck with me: craftsmanship isn't a luxury, it's what keeps the code standing when the company changes scale. Today I'm Tech Lead Architect at a Québec fintech, working on legacy applications you're not allowed to break.
