Upgrading & What's New in Symfony 6!

Symfony 6 is here! Newer & shinier... it smells faintly of coconut! But, exactly what is new? And what's the best path to upgrading?

Symfony 6 builds on top of Symfony 5. So if you love making huge changes like reorganizing all of your files, whelp, I'm sorry to disappoint! But even though Symfony 6 won't require you to do a ton of work to upgrade to it, it does come with some wonderful features to make life easier. Let's upgrade... then try some of those out. We'll cover:

• Upgrading to Symfony 5.4
• The new Flex command for updating recipes 🍾
• Updating all of our recipes
• Converting from "attributes" to "annotations" with Rector
• Finding & Removing deprecations
• Upgrading to Symfony 6
• ... new features!

And we won't even cover all the new features... that would take days! See Symfony.com 5.4/6.0 Features Blog for even more. Ok, let's get to work!

• Project Setup & The Plan
• Upgrading to Symfony 5.4
• Automating Upgrades with Rector
• Post-Rector Cleanups & Tweaks
• Updating the All-Important FrameworkBundle Recipe
• Recipe Upgrades with recipes:update
• Recipe Upgrades: Part 2!
• Upgrading Encore and your assets/ Setup
• Upgrading to PHP 8
• Annotations to Attributes
• Adding Property Types to Entities
• Security Upgrades
• Custom Authenticator authenticate() Method
• Password encoders -> password_hashers & debug:firewall
• Hunting Down the Final Deprecations
• Upgrading to Symfony 6.0
• Final Upgrades & Cleanups
• Form Improvements for Symfony 6
• Enhanced Docker Integration & Testing Emails