Before Wasp 0.12 we only supported Node.js 18 and we based our tests in the CI on using the Node.js 18.
From Wasp 0.12 we support Node.js >= 18 and our tests should check if our code works for at least one other version > 18 to ensure things like this: https://github.com/wasp-lang/wasp/issues/1833 don't slip by.
Before Wasp 0.12 we only supported Node.js 18 and we based our tests in the CI on using the Node.js 18.
From Wasp 0.12 we support Node.js >= 18 and our tests should check if our code works for at least one other version > 18 to ensure things like this: https://github.com/wasp-lang/wasp/issues/1833 don't slip by.