v0.2.0

Breaking changes

• new_pre_release_ids()'s arguments have been changed from id1, id2, id3, id4, id5 to ....
  This allows for more than 5 pre-release identifiers to be specified. (#8)
• mark_as_pre_release()'s ids argument no longer has a default value. (#23)
• The smvr() returns NA with a warning instead of an error when an invalid value is passed to the build argument. (#26)

Enhancements

• parse_semver(), parse_pre_release_ids(), and new_pre_release_ids() have been rewritten to significantly improve string processing performance. (#15)

Bug fixes

• Negative numbers can no longer be cast to pre_release_identifier and treated as alphanumeric values. (#16)