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Changelog

[0.0.5] - 2026-02-24

Added

  • Timezone aware coersion of unaware datetime parameters from DTSTART
  • Python binding capability expanded to support improved testing

Changed

  • RRULE tests aligned with icalendar.org examples (explicit UTC UNTIL, corrected expectations)
  • RRULE tests now load TZIDs from ical_timezone.txt
  • Tests are now timezone aware, and more strictly verify expected bounds of RRULE generation

Fixed

  • UNTIL fixed and handling corrected for timezone-aware recurrences.
  • COUNT with EXDATEs now emits the correct number of occurrences.

[0.0.4] - 2026-02-21

Added

  • InvalidDateMode enum to control handling of invalid recurrence dates:
    • SKIP (strict RFC 5545 default)
    • BACKWARD (calendar-style fallback behavior)
  • Runtime configuration via getInvalidDateMode() / setInvalidDateMode().
  • Support for DATE-only (YYYYMMDD) values for all-day events.
  • Additional test coverage for recurrence edge cases.

Changed

  • MONTHLY and YEARLY recurrences now correctly default to DTSTART’s day and month when BY* parts are absent.
  • Improved internal counter synchronization and cascade seeking logic.
  • Refactored Arduino readuntil() to support arbitrarily long lines while preserving fixed chunk size.
  • Improved C++ STL example and documentation.

Fixed

  • Correct handling of invalid recurrence dates per RFC 5545:
    • BYMONTHDAY skips invalid days (e.g. 31 in February).
    • BYYEARDAY=366 only valid in leap years.
  • Fixed BYDAY seeking when DTSTART does not match any specified weekday.
  • Prevented crashes when optional VEVENT properties (DTEND, SUMMARY) are missing.
  • Corrected internal date comparison logic and year/day validation bugs.

[0.0.3] - 2025-07-31

Changed

  • Updated Docker development environment to better support pull request contributions.

[0.0.2] - 2025-01-27

Changed

  • Version updates in library.json, library.properties, and setup.py to force Arduino Library Manager refresh.
  • Merged improvements and fixes from contributors.

Fixed

  • Added missing <stdexcept> include.
  • Improved line folding support per RFC 5545.
  • String handling fixes for ESP32 compatibility.
  • Removed rogue characters and whitespace handling issues.
  • General parser robustness improvements.

Added

  • Python test for line folding behavior.
  • Support for RFC 5545 line folding (content lines beginning with whitespace are unfolded correctly).

[0.0.1] - 2020-09-20

Added

  • Initial public release.
  • Basic iCalendar parsing support.
  • Arduino compatibility.
  • Inclusion in Arduino Library Manager.