- @Crell's tweet at SymfonyCon
- Silex issue #1578
- Official Announcement
- A Threnody for Silex
- OpenCFP converting to Symfony 4
- BoltCM converting to Symfony 4
- Kevin's book: Building Web Applications with Silex 2
- Short guide explaining how to migrate from Silex to Symfony 4+ Flex
- @frankdejonge
- Battle Log: Symfony Routing performance considerations.
- Cilex
- Beau's PR for console applications
- Threnody Definition
- Universal Paperclips