2.1.0

• Added type declarations to all methods
• PHP 7.1 is required

2.0.2

• Use type hint to check the type

2.0.1

• Fix PHP 8.4 deprecation warning

2.0.0

• \Arokettu\SystemClock\SystemClock was renamed to \Arokettu\Clock\SystemClock
  for deduplication in arokettu/clock

1.0.0

Initial release, extracted from arokettu/clock