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Laravelのバージョニングの意味

>Laravel's versioning scheme maintains the following convention: paradigm.major.minor. Major framework releases are released every six months (February and August), while minor releases may be released as often as every week. Minor releases should never contain breaking changes.
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> When referencing the Laravel framework or its components from your application or package, you should always use a version constraint such as 5.7.*, since major releases of Laravel do include breaking changes. However, we strive to always ensure you may update to a new major release in one day or less.
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> Paradigm shifting releases are separated by many years and represent fundamental shifts in the framework's architecture and conventions. Currently, there is no paradigm shifting release under development.