v4.5.0

What's Changed

• docs: migrate documentation site from VitePress to Astro Starlight by @knowledgecode in #123
• feat: add defaultDate option to parse/isValid for partial date string support by @knowledgecode in #124

Major Changes

• New defaultDate option: parse() and isValid() now accept a defaultDate object (ParsedComponents) to supply fallback values for date/time components missing from the format string — useful for parsing time-only, month-day, or other partial date strings
• ParsedComponents interface: Extracted from PreparseResult into parser.ts as a standalone, reusable interface; PreparseResult now extends it
• Validation improvement: isValid() validates defaultDate components (e.g. an out-of-range H in defaultDate returns false); leap-day validation now respects a defaultDate.Y context
• Precedence rule: defaultDate.Z (timezone offset in minutes) takes precedence over the timeZone option when both are present

Full Changelog: v4.4.0...v4.5.0

v4.4.0

What's Changed

• Bump flatted from 3.3.4 to 3.4.2 by @dependabot[bot] in #120
• Bump picomatch from 4.0.3 to 4.0.4 by @dependabot[bot] in #121
• feat: release v4.4.0 — new plugins, utilities, and docs improvements by @knowledgecode in #122

Major Changes

• New utility functions: getDaysInMonth, getISOWeek, getISOWeekYear added to public API
• New plugins: week (ISO 8601 week formatting), quarter (quarter-of-year), timestamp (Unix timestamp seconds/milliseconds)
• Bug fixes: timezone name mapping corrections (Falkland, Greenland, Hawaii-Aleutian, Macao, and 10+ additions)
• Docs: CDN usage examples added to README, formatting improved across all pages

Full Changelog: v4.3.1...v4.4.0

v4.3.1

What's Changed

• Bump minimatch from 10.2.2 to 10.2.4 by @dependabot[bot] in #118
• Bump version to 4.3.1 and update dependencies by @knowledgecode in #119

Full Changelog: v4.3.0...v4.3.1

v4.3.0

What's Changed

• Add IANA timezone string support to all date manipulation functions (addDays, addMonths, addYears, parse, format, etc.)
• Fix timezone offset range and month boundary handling in isValid
• Update documentation to reflect v4.3.0 API changes

Full Changelog: v4.2.0...v4.3.0

v4.2.0

What's Changed

• Bump preact from 10.27.1 to 10.28.2 by @dependabot[bot] in #115
• v4.2.0: Add timezone features and improve code organization by @knowledgecode in #116

Major Changes

• Consolidated timezone imports: Added a new date-and-time/timezone entry point allowing import of multiple timezones from a single module
• IANA timezone name string support: The format() function now accepts IANA timezone name strings (e.g., 'Asia/Tokyo') in addition to TimeZone objects

Full Changelog: v4.1.2...v4.2.0

v4.1.2

What's Changed

• Bump glob from 11.0.3 to 11.1.0 by @dependabot[bot] in #111
• Bump mdast-util-to-hast from 13.2.0 to 13.2.1 by @dependabot[bot] in #112
• Fix plugin import examples and update terminology in docs by @knowledgecode in #113
• Update dependencies and improve code quality by @knowledgecode in #114

Full Changelog: v4.1.1...v4.1.2

v4.1.1

What's Changed

• Bump vite from 5.4.20 to 5.4.21 by @dependabot[bot] in #108
• Bump js-yaml from 4.1.0 to 4.1.1 by @dependabot[bot] in #109
• Release 4.1.1: Add type definitions and update dependencies by @knowledgecode in #110

Full Changelog: v4.1.0...v4.1.1

v4.1.0

What's Changed

• Support literal square brackets in format strings by @knowledgecode in #107

Full Changelog: v4.0.5...v4.1.0

v4.0.5

What's Changed

• Bump vite from 5.4.19 to 5.4.20 by @dependabot[bot] in #105
• Release 4.0.5: Update plugin description and dependencies by @knowledgecode in #106

Full Changelog: v4.0.4...v4.0.5

v4.0.4

What's Changed

• Fix esbuild security vulnerability by @knowledgecode in #104

Full Changelog: v4.0.3...v4.0.4