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Symfony Blog

All about Symfony releases, new Symfony features, and other important announcements

The `spaceless` filter implicitly marks its output as safe
Sandbox property allowlist bypass via the `column` filter (array_column on objects)
`template_from_string()` escapes a SourcePolicy-driven sandbox via synthesized template name
Unbounded formatter memoisation in twig/intl-extra keyed on template-controlled arguments
Possible sandbox bypass when using a source policy
May 20, 2026 #Releases ❤️ 3 🚀 1
May 20, 2026 #Releases ❤️ 2 👍 2
May 20, 2026 #Releases ❤️ 1
May 20, 2026 #Releases ❤️ 1
Twig 3.26.0 released
May 20, 2026 #Releases #Security Advisories #Twig ❤️ 2 🚀 3