What is the caret sign (^) before the dependency version number in Flutter's pubspec.yaml?

Question

In the pubspec.yaml file of my Flutter project there is a caret (^) before the version number of some of the dependencies.

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Answer 1

It means that any new versions of a dependency that does not contain breaking changes will be accepted.

Dart language follows semantic versioning and uses it for package maintainers.

In layman's terms ^1.8.1 means >= 1.8.1 < 2.0.0