jiff-tzdb-platform

This release features support for wasm32-unknown-unknown. That is, when Jiff's new js crate feature is enabled, Jiff will automatically use JavaScript APIs to determine the current time and time zone.

Enhancements:

• #58: Add WASM support and a new PLATFORM.md guide.

This release features a few new APIs that a need for arose while experimenting with actually using Jiff in real projects. Namely, the jiff::fmt::strtime module now has %f and %.f directives for parsing and formatting fractional seconds. And both jiff::fmt::rfc2822 and jiff::fmt::strtime now have support for skipping weekday checks during parsing. (Previously, Jiff required that an English weekday be consistent with the date parsed, and there was no way to opt out. While this is still the default behavior, callers can disable this check.)

Enhancements:

• #52: Improve documentation for Span getter methods.
• #53: Add support for skipping weekday checking when parsing datetimes.
• #55: Add support for fractional seconds in jiff::fmt::strtime.

Bug fixes:

• #49: Fix informational regex describing ISO 8601 format.
• #51: Explicitly allow new deny-by-default lint ambiguous_negative_literals.

This is a new semver compatible release. The principle addition are APIs for converting between a jiff::Span and a std::time::Duration. Specifically, there are now TryFrom<Span> for Duration and TryFrom<Duration> for Span trait implementations. There is also a Span::to_duration, which requires a relative date, for converting spans with non-uniform units (like months) to a Duration.

Enhancements:

• #21, #40: Adds APIs for converting between Span and std::time::Duration.

Bug fixes:

• #36: Saturating arithmetic for Timestamp panics with day-or-greater units.
• #38: Fix some bugs in the micro-benchmarks.
• #39: Document that the RFC 2822 parser is not technically fully spec compliant.

The initial release of Jiff.