0.1.0-beta95
- Fixes a Qt6 compatibility issue flagged by the plugin repository
validator (unscoped enum in the EPW download utility). No behaviour
change.
0.1.0-beta94
- The SOLWEIG_NO_GPU environment variable is now honoured on
calculation runs that load precomputed SVF; previously it silently
left the GPU enabled on that path.
- Missing EPW path in EPW weather mode now raises a clear error
instead of an assert (which python -O would strip).
- Documentation: tutorials overview page with instructions for running
the notebooks locally; the site and README state the package's
positioning as an experimental compatibility-focused implementation,
with UMEP as the reference.
0.1.0-beta93
- Fixes plugin loading: unescaped % signs in this metadata file broke
QGIS's parser, so the plugin failed to load with "Errors parsing
metadata.txt".
- Stale SVF caches are now caught at load time: a cache computed for a
different raster is skipped (or reported with its path and both grid
shapes) instead of surfacing later as a bare "Grid shape mismatch"
error.
0.1.0-beta92
- Fixes an out-of-memory crash at the end of large tiled runs: the
summary GeoTIFF export now caps in-flight write buffers at about 1 GB
instead of writing all outputs at once.
- Faster large-raster runs, with output unchanged on valid data:
fully-nodata tiles skip computation, tiled GeoTIFF writes and
next-tile reads overlap the computation, and the GVF geometry
precompute runs on the GPU.
- In tiled runs, shadow output over fully-nodata tiles is now NaN
instead of a spurious sunlit value of 1.0.
- Fixes a crash in isotropic mode when the valid-data crop was active.
0.1.0-beta91
- Library gains memory-bounded prepare() for large rasters
(layer-sequential windowing; >50 Mpx cold-build peak RAM cut ~3x, from
~30 GB to ~10 GB on a 507 Mpx raster). No plugin UI or numerical
change from b90.
0.1.0-beta90
- Library gains the opt-in UMEP 2026a ground-surface scheme
(use_ground_scheme / use_outgoing_longwave; Python API only, not yet
exposed in the plugin UI). Defaults off; plugin behaviour and
numerical output unchanged from b89.
- A field comparison of the opt-in scheme is documented in
VALIDATION.md; the scheme is experimental and off by default.
0.1.0-beta89
- Correctness release from a full-repository review; numerical output
changes for some runs (see VALIDATION.md).
- Clearness-index pressure unit fixed (hPa was scaled as kPa):
clear-sky irradiance was ~20-25% underestimated for EPW/values-driven
runs.
- GVF source area fixed at non-1 m pixel sizes (marched 144 m instead
of 36 m at 2 m pixels); new UMEP parity gate at 0.5/1/2 m. 1 m runs
unchanged.
- Cached GVF sunwall mask unified with UMEP semantics (fully sunlit
walls only).
- Tiled SVF preprocessing fixed (crashed with NameError after
computing all tiles); cancelling SVF preprocessing no longer persists
a partial cache — the plugin now stops gracefully via
solweig.ComputationCancelled.
- Plugin loads cleanly when solweig is not installed (per-algorithm
import isolation); anisotropic-sky hint points at the correct toolbox
algorithm.
- EPW parsing uses per-field missing codes (RH 99% and GHI 999 W/m2
are valid data again); ModelConfig.from_json actually reads legacy
parameter files.
- Stale shadow-matrix caches raise a clear error instead of aborting
QGIS; SVF caches invalidate when the trunk layer changes; land-cover
nodata maps to the nodata class instead of "paved".
0.1.0-beta88
- CI / test-categorisation only — zero plugin behaviour change.
- Performance-timing benchmarks moved to a local-only `gpu_perf_gate`
marker; CI keeps only the hardware-stable memory bench. Resolves a CI
false positive on the aniso/iso ratio gate (calibrated against local
M-series GPU; CI runs CPU-only Linux where the ratio is naturally
~3×).
- Plugin functionality, public API, and numerical output unchanged
from b87.
0.1.0-beta87
- Breaking: top-level solweig.extract_bounds / intersect_bounds /
resample_to_grid / etc. (b85 DeprecationWarning shim) now raise
AttributeError. Import from solweig.geospatial instead.
- solweig.disable_gpu() now disables all three GPU paths (shadows,
anisotropic sky, GVF) in a single call. Pre-b87 it only flipped
shadows so "CPU-only" tests weren't actually CPU-only.
- New solweig.enable_gpu() mirrors disable_gpu(). Fixed a lazy-init
bug that silently re-enabled GPU after disable_gpu().
- New GPU metrics: solweig.gpu_dispatch_count() / gpu_fallback_count()
/ reset_gpu_metrics(). Atomic counters at every Rust GPU dispatch
site; lets tests assert "GPU path actually ran".
- New shadow + SVF GPU/CPU parity tests + runtime-ratio benchmark.
Documents a small known difference in svf_veg* edge pixels (<1%,
propagates to <0.5 °C Tmrt).
- Plugin: no functional change.
0.1.0-beta86
- No numerical change (golden tests byte-identical, validation site
numbers unchanged)
- Hot-file decomposition: io.py / summary.py / models/weather.py /
models/precomputed.py split below 700-line threshold (every public
symbol re-exported, no caller changes)
- models/surface.py further extracted (1731 lines now, down from 3037
at b85): surface_loading, surface_compute, surface_svf_tiled,
surface_serialization, surface_views
- Test coverage 75% → 81% (cleared the 80% target) via +117 focused
unit tests
- solweig.Settings + solweig.ThermalState added to the top-level
public surface (mkdocs API docs follow)
- QGIS plugin: 349 LOC of dead create_surface_from_parameters chain
removed; production path uses SurfaceData.prepare() directly
- QGIS plugin metadata changelog trimmed (254 → 96 lines); older betas
link to GitHub releases
- Public docs: physics specs (SVF / shadows / GVF / radiation / ground
temp / Tmrt / UTCI / PET) rendered in-site via
mkdocs-include-markdown; dev docs (PRINCIPLES / INVARIANTS /
ARCHITECTURE) moved to repo root; tutorial notebooks gain proper alt
text via custom mkdocs hook
- Audit script: 9th axis added (axis_canonical_docs) — validates that
repo-root canonical docs exist, have inbound references, and have
valid relative .md links
- Performance gates tightened ~3–10× (matrix budgets 1.5–4.0 s →
0.5–0.85 s; ratio caps 5/4/6 → 2/2.5/2)
- Memory benchmark re-measured at 377 B/px (Feb baseline 370; b85
refactors added under 2%)
0.1.0-beta85
- Architecture stabilisation: no numerical change, golden tests
byte-identical
- Rust FFI bundling: compute_timestep drops from 43 args to 18
(SvfBundle + StateBundle)
- StateBundle carries an FFI version field; mismatched Python/Rust
pairings raise ValueError instead of silently mis-mapping
- New solweig.geospatial submodule; top-level
extract_bounds/intersect_bounds/resample_to_grid/etc emit
DeprecationWarning
- Settings dataclass replaces 50-line override block in calculate()
- SurfaceData typed views (geometry/optical/auxiliary) used by the
production compute path
- Cache-key hardening: _arr_key includes witness bytes, catches
in-place mutations
- vegetation.rs panic surface 44 → 14 sites via documented contiguity
helper
- surface.py decomposed: serialization helpers extracted to
models/surface_serialization.py
- poe audit task + AUDIT.md (8 measured axes); new CI jobs (audit,
test-slow); test-spec now includes slow tests
- Foundation docs: PRINCIPLES.md + INVARIANTS.md (repo root)
0.1.0-beta84
- Rust wall-aspect kernel: promote internal math to f64, switch to
banker's rounding to match numpy's np.round (closer to UMEP numerics;
input/output arrays stay f32 so data memory is unchanged)
- Delete Python Goodwin fallback from wallalgorithms.py; Rust kernel
is now the single code path (same numerical behaviour for QGIS and pip
users)
- Public API additions on solweig/__init__.py: extract_bounds,
intersect_bounds, resample_to_grid, namespace_to_dict, pixel_size_tag,
compute_max_tile_pixels, looks_like_relative, wallalgorithms
- QGIS plugin now uses only solweig's public API (no reaching into
models/utils/loaders/physics/tiling/cache internals)
- Plugin error wrapping: QgsProcessingException messages now expose
SolweigError structured attributes (field/expected/got/reason/...)
- Small cleanups: remove duplicate MIN_SUN_ELEVATION_DEG constant,
standardize logging in api.py, remove dead
xy_to_lnglat/rotate_array/cart2pol/get_ders, remove unimplemented
poi_coords parameter
0.1.0-beta83
- Fix PVGIS TMY reference period docs (2005-2020 -> 2005-2023 for
v5.3)
- Clarify that TMY row timestamps legitimately span multiple years
(each month is a real historical month)
0.1.0-beta82
- Fix silent scale convention inversion in Rust shadow caster
(tan_altitude_by_scale operator)
- Add DEM stair-step smoothing (auto-detects int16 1m quantization)
- Add prepare() warm-run fast-path (100x speedup on cache hit with
detailed mismatch logs)
- Fix tile sizer buffer accounting (removes spurious "buffer exceeds
limit" warning)
- Optimize GridAccumulator.update() with in-place numpy ufuncs
- Plugin metadata consolidation: delegate metadata.json write to
SurfaceData.save_cleaned()
0.1.0-beta80
- Add NVIDIA VRAM detection on Linux via NVML
0.1.0-beta79
- Fix Windows PermissionError on memmap temp dir cleanup
- Fix rasterio create_empty_raster not initializing with nodata
0.1.0-beta77
- Fix GPU OOM on large rasters
0.1.0-beta74
- Fix rasterio resampling pixel drift (from_bounds back-computed
inexact pixel size)
- Fix phantom vegetation shadows: QGIS load path preserved CDSM NaN
markers
- Add SurfaceData.load() API; eliminate QGIS/core loading duplication
- Remove duplicate root-level SVF/raster saves from QGIS preprocessing
- Fix progress bar regression: wall computation now reports progress
0.1.0-beta73
- Fix CDSM/TDSM preprocessing tests for sub-threshold NaN behaviour
0.1.0-beta72
- Handle CDSM reconciliation with DEM to prevent shadow artefacts on
hills

Older releases (0.1.0-beta1 .. 0.1.0-beta71):
- See https://github.com/UMEP-dev/solweig/releases for the full
version history.

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