v4.0.1

4.0.1 (2026-07-07)

Bug Fixes

• gate PVT satellites on decoding completeness (8fe32d4)

v4.0.0

4.0.0 (2026-07-07)

• feat!: enrich PVT solution with IFB reference bands, units, and course over ground (6a528ce)

BREAKING CHANGES

• PVTSolution gains a course_over_ground field, so the exported
  struct's positional-constructor arity/order and field layout change. Several fields
  are now Unitful quantities rather than bare Float64 metres: time_correction, the
  inter_system_biases values and SatInfo.residual are typeof(1.0m). And
  inter_frequency_biases is now Dict{Symbol,InterFrequencyBias} — read .value
  (a typeof(1.0m)) and .reference (the anchor band) instead of a bare Float64.
  Consumers doing arithmetic must handle the units (e.g. ustrip(u"m", x)), and
  positional construction and reflection-based code must be updated. Reading via
  keyword construction and the accessor fields is otherwise unaffected.

Co-Authored-By: Claude Opus 4.8 (1M context) noreply@anthropic.com

v3.1.0

PositionVelocityTime v3.1.0

Diff since v3.0.0

Merged pull requests:

• build(deps): allow Tracking 3 (#49) (@giove-a)

v3.0.0

3.0.0 (2026-07-05)

• feat!: multi-GNSS PVT with GPS L2C/L5/L1C and Galileo E5a (a968fff)

BREAKING CHANGES

• PVTSolution.sats is now a
  Dictionary{Tuple{Symbol,Int},SatInfo} (was Dict{Int,SatInfo}); index it
  with get_sat_info(pvt, signal, prn). SatInfo gains a residual field and
  calc_DOP takes the user position and primary clock index. The
  get_gdop/get_pdop/get_hdop/get_vdop/get_tdop accessors are removed;
  read DOP from the dop field instead (e.g. pvt.dop.GDOP).
  get_num_used_sats is removed: with sats keyed by (signal, PRN),
  length(pvt.sats) counts measurements, not satellites.
  get_frequency_offset is removed: compute it inline as
  pvt.relative_clock_drift * base_frequency.
  PVTSolution.reference_system and the inter_system_biases keys are now
  GNSSSignals.TimeSystem values (GPST()/GST()), not :GPS/:Galileo symbols.
  Requires GNSSSignals 3.3 and GNSSDecoder 3.6.

Co-Authored-By: Claude Opus 4.8 (1M context) noreply@anthropic.com
Co-Authored-By: Claude Fable 5 noreply@anthropic.com

v2.2.0

2.2.0 (2026-06-23)

Features

• support GNSSDecoder 2 (da00512)

v2.1.0

2.1.0 (2026-06-22)

Features

• ionospheric and tropospheric corrections in calc_pvt (#38) (c2a74e0)

v2.0.0

2.0.0 (2026-06-19)

• feat!: migrate to Tracking 2 (GNSSSignals 2, GNSSDecoder 1.3) (b4bec52)

Bug Fixes

• benchmark: pick GPS L1 type by GNSSSignals version (57e5520)
• benchmark: update fixtures for GNSSDecoder 1.3 / GNSSSignals 2 (0387b36)

BREAKING CHANGES

• drops support for GNSSSignals 1 and Tracking 1; the core
  API now requires the v2 ecosystem.

Co-Authored-By: Claude Opus 4.8 noreply@anthropic.com

v1.0.6

1.0.6 (2026-05-07)

Bug Fixes

• resolve GPS L1 week-rollover ambiguity via approximate_year (e7e2191)

v1.0.5

1.0.5 (2026-05-07)

Performance Improvements

• avoid materializing healthy_states via findall + view (263801d)

v1.0.4

1.0.4 (2026-05-07)

Performance Improvements

• only apply geodesic acceleration on cold start (iszero prev_ξ) (d73e3fa)
• use geodesic acceleration in LM solve for user_position (ac14723)