Update README

README.md

@@ -27,7 +27,7 @@ composer require brick/date-time-doctrine
 Requirements
 ------------
 
-This library requires PHP 7.4 or later.
+This library requires PHP 8.1 or later.
 
 Project status & release process
 --------------------------------
@@ -36,7 +36,7 @@ The current releases are numbered `0.x.y`. When a non-breaking change is introdu
 
 **When a breaking change is introduced, a new `0.x` version cycle is always started.**
 
-It is therefore safe to lock your project to a given release cycle, such as `0.3.*`.
+It is therefore safe to lock your project to a given release cycle, such as `0.4.*`.
 
 If you need to upgrade to a newer release cycle, check the [release history](https://github.com/brick/date-time-doctrine/releases) for a list of changes introduced by each further `0.x.0` version.