ephemeris 1.0.0-beta.6

Idiomatic Dart bindings for the Taiyin ephemeris C API.

1.0.0-beta.6

• Update the native source baseline to Taiyin 1.0.0-beta.8.
• Bind the Ziwei add/remove JSON option-module C ABI used by the optional Ziwei package.

1.0.0-beta.5

• Bundle and automatically load the regenerated lite TSC1 fixed-star catalog. It contains 2,057 stars and 12,242 aliases, including every HIP star used by Stellarium's Chinese and western-zodiac line figures.
• Allow applications to disable all packaged runtime data, including the lite catalog, with RuntimeOptions(loadPackagedData: false).
• Update the native source baseline to Taiyin 1.0.0-beta.6.

1.0.0-beta.4

• Update the bundled native baseline to Taiyin 1.0.0-beta.5.
• Allow solar apparent calculations with Shapiro delay enabled to skip the Sun's excluded self-deflector instead of failing on singular geometry.

1.0.0-beta.3

• Separate the fixed civil-clock UTC offset from a mean-solar meridian used to assign new moons and solar terms to calendar days.
• Make local/instant convenience conversions independent of EOP when a local astronomical calendar uses a meridian day boundary.

1.0.0-beta.2

• Update the bundled native baseline to Taiyin 1.0.0-beta.4 and C ABI 10.
• Add the historical-China, standard-China, and locally reconstructed astronomical Chinese-calendar modes.
• Canonicalize exact integer-hour chart clocks only at Chinese-metaphysics boundaries while leaving general astronomy time conversions unchanged.

1.0.0-beta.1

• Promote the package line to beta after stabilizing the split native-module, isolate-concurrency, result-flag, and time-conversion APIs.
• Update the bundled native baseline to Taiyin 1.0.0-beta.3, including the smoothed early Delta-T transition.
• Document the separately downloadable full-range DE441 OPM2 data release.

1.0.0-alpha.2

• Add DateTime.toUtcJulianDate() and utcJulianDateFromUnixMicroseconds() as central epoch-based adapters.
• Add readable Julian-date aliases and local-calendar time conversion helpers.
• Report missing/out-of-range EOP and unavailable leap-second data with EarthOrientationDataError and LeapSecondDataError.
• Add automatic TAI/TT/UT1/TDB-to-UTC and UTC/TAI/TT/TDB-to-UT1 conversion helpers, plus UT1 and UTC calendar-formatting helpers for event results.
• Reject inserted leap seconds reached from TAI, TT, or TDB when they cannot be represented by UtcJulianDate; resolve the indistinguishable UT1 coordinate to the following midnight. Keep historical TT/TDB-to-UT1 fallback independent of UTC leap-second coverage.

1.0.0-alpha.1

• Require Taiyin C ABI 9 and regenerate the native FFI bindings.
• Return OperationResult<T> named records from native calculations, exposing call-scoped ResultFlags without relying on mutable last-call state.
• Add typed native exception subclasses while preserving result flags and diagnostics on failures.
• Add high-level BaZi and Ziwei result records with aggregated calendar, time-scale, and extension flags.
• Align worker-isolate ownership with the core architecture through Ephemeris.attach().createContext(); attaching never reinitializes the process-wide runtime.
• Update the pinned modular native libraries to Taiyin 1.0.0-beta.1.
• Split the pinned native distribution into core, BaZi, and Ziwei modules; extension packages now load their own module lazily.
• Remove BaZi/Ziwei from the core capability enum; extension availability is determined by loading the corresponding package-owned native module.
• Add concurrent multi-isolate BaZi and Ziwei integration tests.
• Cover positions, event search, eclipses, and Chinese-calendar conversion in one concurrent worker-isolate regression, and document the ownership matrix.