4.0.0-alpha2

Added

• Add Uuid::fromDateTime() to create version 1 UUIDs from instances of
  \DateTimeInterface.
• Add Generator\NameGeneratorInterface to support alternate methods of
  generating bytes for version 3 and version 5 name-based UUID. By default,
  ramsey/uuid uses the Generator\DefaultNameGenerator, which uses the standard
  algorithm this library has used since the beginning. You may choose to use the
  new Generator\PeclUuidNameGenerator to make use of the new
  uuid_generate_md5() and uuid_generate_sha1() functions in ext-uuid version
  1.1.0.

Changed

• Add fromDateTime() method to UuidFactoryInterface.
• Change UuidInterface::getHex() to return a Ramsey\Uuid\Type\Hexadecimal instance.
• Change UuidInterface::getInteger() to return a Ramsey\Uuid\Type\IntegerValue instance.

Fixed

• Round microseconds to six digits when getting DateTime from v1 UUIDs. This
  circumvents a needless exception for an otherwise valid time-based UUID.