Warning: You are browsing the documentation for version 2.3 which is not maintained anymore.
If some of your projects are still using this version, consider upgrading.
So a new Symfony release has come out and you want to upgrade, great! Fortunately, because Symfony protects backwards-compatibility very closely, this should be quite easy.
There are three types of upgrades, all needing a little different preparation:
- Upgrading a Patch Version (e.g. 2.6.0 to 2.6.1)
- Upgrading a Minor Version (e.g. 2.5.3 to 2.6.1)
- Upgrading a Major Version (e.g. 2.7.0 to 3.0.0)
- Upgrading a Third-Party Bundle for a Major Symfony Version