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timex v3.7.0 Release Notes

  • Potentially Breaking

    • Elixir 1.8+ is now required
    • Tzdata 1.0+ is now required
    • 🛠 If you were previously relying on ? suffixed functions to return {:error, reason} if given invalid date/time inputs (other than is_valid?), these functions now always return booleans and raise if an error with the input is encountered

    ➕ Added/Changed

    • 🔨 Refactored much of the library to delegate to the Calendar API where appropriate, we now make more of an effort to avoid duplication of the standard library functionality
    • Functions with the ? suffix now correctly raise on invalid inputs, and always return booleans. This was implicitly broken before, we need to follow convention here.
    • 📜 Local timezone handling no longer requires parsing the zoneinfo files, instead we attempt to observe the timezone name that is active and feed that into the timezone database directly. We were just using the abbreviations before, but that wasn't correct behavior at all. In the 👍 future we may want to support the system timezone database as a proper implementation of Calendar.TimeZoneDatabase, but for now we've just ✂ removed the unnecessary parsing work that was going on here.
    • Timex.today/1 which returns today's date in the provided timezone

    🛠 Fixed

    • Handling of timezones across DST. More generally we now handle gaps/ambiguity much more consistently
    • 🔨 ZoneInfo parser was refactored, now properly supports version 2/3 files, addresses some small bugs in previous code
    • 🚚 Some incorrect/redundant typespecs were removed/fixed
    • 👍 We now support alternative timezone databases for API operations that do not need to interact with the Timex.Timezone module directly. That module is still tied to tzdata for now, but in the future may be 🚚 modified to remove the direct dependency.