I'm trying to update a big project with the version below, to a version with null safe but minimizing file changes.

environment:
  sdk: ">=2.2.2 <3.0.0"

I've following dart's doc https://dart.dev/null-safety/migration-guide#step1-wait but I'm not certain that's what I'm looking for.

CodePudding user response：

May the Release Notes will help you.

At least I saw in every release some null safety update at least since 2.2.0.

CodePudding user response：

Optional no, but you can avoid al the request keyword using a ? when you declare the variables like this.

required String name;

String ? name;