Version upgrade recipes

General
1

Any automated ways to assist in upgrading an old app to the current version? Maybe using

https://docs.openrewrite.org ?

2

From which versions are we talking about?

  • 8->14 impossible
  • 14->23 technically possible but really hard
  • 23->24 just use the one for Spring / Jakarta
  • 24.3->24.4 there might be one coming

Keep in mind there is tooling by Vaadin for it; if your application is big / old / important enough - it might be worth to contact them directly: Java Migration Toolkit: Automatic Code Conversion | Vaadin