Version 0.21

Released March 6, 2023

• Refactor HolidayBase::get_named, #991 (@arkid15r)
• Refactor calendars: extract to a separate module, #969 (@arkid15r)
• Refactor common.TestCase, #979 (@arkid15r)
• Refactor relative weekdays calculation: replace relativedelta, #1002 (@KJhellico)
• Fix NYSE New Year's Day observance calculation, #1000 (@KJhellico)
• Fix tox.ini typo, #994 (@mborsetti)
• Improve Argentina holidays, #988 (@PPsyrius)
• Optimize Azerbaijan observed holidays, #961 (@KJhellico)
• Optimize Malaysia observed holidays, #963 (@KJhellico)
• Optimize Nigeria observed holidays, #978 (@KJhellico)
• Update Argentina holidays. Add holidays localization: uk, #968 (@KJhellico)
• Update Chile holidays. Add localization: en_US, es, uk, #990 (@KJhellico)
• Update Ireland holidays: St. Bridget's Day, #953 (@PPsyrius)
• Update Japan holidays localization: en_US, #964 (@KJhellico)
• Update Mexico holidays, #980 (@KJhellico)
• Update PR template, #997 (@arkid15r)
• Update Saudi Arabia holidays, #962 (@KJhellico)
• Add Canada holidays localization: th, #986 (@PPsyrius)
• Add Colombia holidays localization: en_US, es, uk, #965 (@KJhellico)
• Add Monaco holidays localization: en_US, fr, uk, #966 (@KJhellico)
• Add Thailand holidays localization: en_US, th, #946 (@PPsyrius)
• Add functions for relative weekdays calculation, #989 (@KJhellico)
• Add tox-ini-fmt to .pre-commit-config.yaml, #999 (@arkid15r)
• Clean up Malaysia tests, #996 (@KJhellico)
• Clean up Thailand localization and in-line code comments, #995 (@PPsyrius)
• Clean up tests module loading, #992 (@arkid15r)
• Use the built-in library for time zone functions, #993 (@mborsetti)