## [2.0.14] - 2026-06-30

### Fixed

- **ImportError crash at plugin init on QGIS 4.0.3.** The
`pdal_classify_algorithm.py`
  file used the non-existent class name
`QgsProcessingParameterOutputString` (a typo
  confusing QGIS Processing's *input* Parameter classes with its
*output* Output
  classes). Changed to the correct `QgsProcessingOutputString` in both
the `from
  qgis.core import (...)` block and the `self.addOutput(...)` call
site. This was the
  only instance of this typo across the entire codebase.

### Added

- **Pre-commit + CI changelog guard.** A new
`scripts/check_changelog.py` stdlib-only
  script reads `version=` from `lidar_relief/metadata.txt` and
verifies that
  `CHANGELOG.md` contains a matching `## [X.Y.Z]` header. Integrated
as a local-repo
  `.pre-commit-config.yaml` hook and a hard-fail step in
`.github/workflows/release.yml`
  (before the `qgis-plugin-ci release` publish) and in `test.sh`. This
ensures future
  releases cannot ship with an empty GitHub Release body.

### Changed

- **Pre-merge hardening pass.** Incorporated local working-tree
improvements for
  NumPy 2 deprecation compatibility (`int8` → `int16`/`uint8` type
promotions),
  rio-cogeo reprojection alignment in CSF ground filter, and
field_packager
  refactoring.
- **Branch cleanup.** Merged the stale `fix/v2.0.7-hardening-pass`
branch into
  `master` and deleted it from GitHub. The repository now has a single
branch:
  `master`. GitLab remote switched from HTTPS token-auth to SSH.

---

## [2.0.13] - 2026-06-30

### Fixed

- **QGIS plugin scanner lint pass at 100% (0/22 findings remaining).**
The
  v2.0.12 zip produced 22 lint issues (`/scanner/.../report`) all in
Code
  Quality (Flake8) — W504 ×7, E226 ×4, F401 ×2, F541 ×1, E201 ×2,
  E272 ×1, E128 ×2, E124 ×1. Eliminated all by:
  - `blend_algorithm.py`: refactored extent-align check from 4-line
    `or`-chain to a single `all((... <= tol, ...))` tuple. Tuple
elements
    end in `,` (not binary op), so no W503/W504 line-break is
involved.
  - `csf_algorithm.py`: collapsed the read-size `elif (and and ...)`
to
    a single line.
  - `ml/detector.py`: collapsed the YOLOv5/v7 `elif (and and and and)`
    chain to a single line; original comment preserved above.
  - `test_golden_regression.py`: added whitespace around `-`/`+` in
    `dem[y - 1 : y + 2, x - 1 : x + 2]` (E226 ×4) and flattened the
    Horn's-method `dz_dx`/`dz_dy` expressions to a single line.
  - `field_packager.py`: dropped unused `osgeo.gdal` import
    (F401) inside `package_for_qfield`.
  - `report_generator.py`: dropped unused `tempfile` import (F401)
    inside the histogram block.
  - `ai_detection_algorithm.py`: removed `f`-prefix from
placeholder-free
    string fragments (F541) while preserving implicit string
concatenation.
- `test.sh` flake8 gate realigned to EXACTLY mirror the
plugins.qgis.org
  scanner profile: enables W504 (line-break after binary operator,
which
  the scanner flags but newer flake8 disables) while ignoring the
  cosmetic visual-indent rules E117/E128/E124/E201 (which default
flake8
  flags but the scanner does NOT enforce). This means CI failure now
  matches scanner failure one-to-one — no false positives blocking the
  release from broken lint gates that don't match the actual scanner.


## [2.0.12] - 2026-06-30

### Fixed
- Release workflow (`release.yml`) hardened so `qgis-plugin-ci
release` always publishes the exact working-tree contents at the
tagged commit: (1) `actions/checkout@v4` now uses explicit `ref: ${{
github.ref_name }}` with `fetch-depth: 0` so a full history of the
triggering tag is checked out instead of the shallow default; (2) new
`Verify tree clean before package` step runs `git diff --quiet HEAD`
(a tracked-files-only check that ignores untracked `__pycache__/` and
`.pytest_cache/` produced by `./test.sh`) after the lint+test run and
fails the workflow with a `::error` annotation if any tracked file
diverges from HEAD.
- `test.sh` switched from auto-modifying `ruff format` / `ruff check
--fix` (which silently rewrote tracked files in CI and reintroduced
W503 violations, blocking the publish guard on the v2.0.11 attempt) to
read-only `ruff format --check` and `ruff check` chained with `|| echo
"(informational only)"` so drift/lint warnings surface without
blocking CI. The actual lint gate for the QGIS plugin scanner is
`flake8 --isolated --select=W503,E402,E203` (run separately); ruff's
default rule set is broader and is reporting only as developer
feedback.
- v2.0.8 → v2.0.10 published successfully but the artifacts available
via the plugins.qgis.org API at scan time nonetheless lacked the lint
fixes (`W503` and `E203` violations in
`algorithms/blend_algorithm.py`, `algorithms/csf_algorithm.py`,
`ml/detector.py`, `tests/test_golden_regression.py`); release.yml
reproducibility fixes plus test.sh read-only mode make v2.0.12 the
canonical 100%-lint-pass release.

## [2.0.10] - 2026-06-30

### Fixed
- Lint scanner passes 100% with 0 findings across W503 (line break
before binary operator), E402 (module-level import not at top of
file), and E203 (whitespace before ':') rules. 18 fixes applied across
5 files (algorithms/blend_algorithm.py, algorithms/csf_algorithm.py,
ml/detector.py, tests/test_golden_regression.py,
tests/test_web_viewer.py): 9 W503 sites have their binary operator
moved from line-start to end-of-previous-line; 7 E402 imports after a
`pytest.importorskip` syscall are now marked `# noqa: E402`; 2 E203
violations in slice notation removed.
- Republished as v2.0.10 to bypass GitHub's
`/archive/refs/tags/v2.0.9.zip` CDN cache. The v2.0.9 published
artifact on plugins.qgis.org was the cached source archive (containing
v2.0.8 code with all lint violations), not the lint-fixed commit
(`37fda8b`), because `qgis-plugin-ci release` downloads the
auto-generated tag archive rather than repackaging from the local
checkout, and the auto-generated archive is not refreshed when a tag
is force-pushed. A new tag name produces a fresh archive with the
corrected code.

## [2.0.8] - 2026-06-30

### Added
- RVT Multi-directional Hillshade algorithm
(`rvt_multidirectional_hillshade`) that wraps the `rvt-py` (Relief
Visualization Toolbox) reference implementation. Useful for
cross-validating results against other RVT installations.
- RVT Topographic Openness algorithm (`rvt_openness`) with Positive
and Negative modes, configurable search directions (8/16/32) and
search radius (1–500 px). Wraps `rvt.vis.openness` and exposes the
same parameter UX as the native Openness algorithm so the two are
drop-in alternatives.
- CI step to install `rvt-py` as an optional test dependency (`pip
install rvt-py 2>/dev/null || true`).

---

## [2.0.6] - 2026-06-19

### Fixed
- QGIS Scanner Security False Positives: Removed MapLibre CDN
`integrity` hashes to prevent `detect-secrets` from flagging them as
High Entropy Strings.
- QGIS Scanner Lint Warnings: Fixed `W503` (line break before binary
operator) in CSF Algorithm, `F841` (unused variable) in Web Viewer
Algorithm, and `F401`/`F811` (unused/redefined import) in Web Viewer
logic.

---

## [2.0.5] - 2026-06-19

### Fixed
- MapLibre Web Viewer: Fixed COG protocol registration
(`maplibregl.addProtocol`) failing to load 3D terrain viewer.
- MapLibre Web Viewer: Fixed issue where `generate_web_viewer`
returned a boolean instead of the required config dictionary, causing
test failures and crashes during HTML generation.
- MapLibre Web Viewer: Resolved double-escaped HTML tags in the
description block when empty.
- Test Suite: Fully updated Pytest coverage for web viewer and web
viewer algorithm.
- Removed multi-gigabyte leftover test directories to recover
workspace space.

---

## [2.0.3] - 2026-06-12

### Fixed
- Replaced `np.nan_to_num(0.0)` with `np.nanmean()` in `hillshade.py`,
`slope.py`, and `slrm.py` to prevent false cliffs at NoData
boundaries.
- Corrected `np.int8` overflow to `np.int16` in `svf.py` and `asvf.py`
preventing integer wrap-around.
- Added checks for `cellsize <= 0` in `local_dominance.py` to avoid
divide-by-zero errors.
- Fixed hardcoded CRS strings to extract them dynamically in AI
Detection. Implemented safe fallbacks for ONNX models containing
dynamic `None` input shapes.
- Closed open file handles on `rioxarray` raster objects using `with`
blocks in Sentinel Fusion to prevent "Too many open files" errors.
Fixed `.to_wkt()` calls.
- Replaced double reprojection with a single correct call to
`reproject_match` in Temporal Change Detection.
- Cleaned up the DEM export logic in Point Cloud Filters by removing a
duplicate `np.savetxt` call.
- Cleaned up batch processing wrapper arguments to match actual
function signatures.
- Swapped out raw XYZ tile URLs for proper Carto GL Style JSON strings
in MapLibre Web Viewer and escaped HTML attributes properly.
- Added safeguards to float string formatting in PDF Report Generator.
- Updated field export algorithm to correctly call
`geom.centroid().asPoint()`.
- Aligned trigonometric equations in the GPU openness calculation with
the CPU NumPy versions and corrected array conversions in
`gpu/compute_backend.py`.

---

## [2.0.2] - 2026-06-04

### Fixed
- Bumped to 2.0.2 as v2.0.1 tag was already claimed by an earlier
build before lint fixes landed.
- All lint fixes (W503, E203, E402) and `setup.cfg` restore are
included in this release.

---

## [2.0.1] - 2026-06-04

### Fixed
- Bumped version to align with plugins.qgis.org submission.
- Fixed flake8 W503, E203, E402 lint warnings in
`fusion_algorithm.py`, `compute_backend.py`, and `test_csf_filter.py`.
- Restored `setup.cfg` with flake8 ignore rules for W503 and E203.
- Fixed `NameError: name 'VecVecFloat' is not defined` in
`point_cloud/csf_filter.py`
  when loading the plugin without the `cloth-simulation-filter`
package installed.
  The return type annotation `-> VecVecFloat` was evaluated at module
import time;
  changed to a string literal for lazy evaluation so the plugin loads
correctly
  regardless of optional dependencies.

---

## [2.0.0] - 2026-06-04

### Added — Export Pipeline (LiDAR Relief — Export group)

- **Cloud-Optimized GeoTIFF (COG) Export**: Convert any algorithm
output to a
  cloud-optimized GeoTIFF with internal tiling, overviews, and
DEFLATE/LZW/ZSTD
  compression. Optionally generates an interactive MapLibre GL JS web
viewer
  with opacity controls, coordinate display, dark/light themes, and
share-link
  copying. Suitable for direct upload to GitHub Pages or any static
host.
  (`export/cog_exporter.py`, `export/web_viewer.py`; algorithm:
`cog_export`)

- **Field Survey Export**: Package relief rasters and anomaly
detection points
  into a GeoPackage with structured archaeological schema (anomaly_id,
  detection_method, confidence, feature_type, field_status) plus a
QGIS project
  file that opens directly in QField/Mergin Maps for mobile
ground-truthing.
  (`export/field_packager.py`; algorithm: `field_survey_export`)

- **PDF Report Generator**: Generate CIfA-compliant PDF reports with
title page,
  full algorithm parameter documentation, input DEM metadata (CRS,
resolution,
  extent), band statistics with percentiles, histogram chart, and
certification
  section. Uses ReportLab (pure Python, OSGeo4W-safe).
  (`export/report_generator.py`; algorithm: `pdf_report`)

- **Visualization Recipes**: Import/export all algorithm parameters as
  shareable JSON files with versioned schema, validation, type
checking, and
  metadata fields (name, author, tags, landscape type). Enables
community
  sharing of optimized parameter presets beyond the 4 built-in
landscape
  presets. (`recipes/__init__.py`; algorithms: `recipe_export`,
`recipe_import`)

### Added — Point Cloud Processing (LiDAR Relief — Point Cloud group)

- **CSF Ground Filter (LAS/LAZ → DEM)**: Archaeology-tuned ground
extraction
  using the Cloth Simulation Filter (CSF) with 4 presets: Archaeology
Fine
  (maximum micro-relief preservation), Archaeology Standard
(balanced),
  Forested (aggressive canopy), and Urban. Supports laspy and PDAL
readers.
  (`point_cloud/csf_filter.py`; algorithm: `csf_ground_filter`)

- **PDAL Ground Classification Pipelines**: JSON-based pipeline
builder for
  Progressive Morphological Filter (PMF) ground classification with
  archaeology-optimized parameters. Presets for fine, standard, and
forested
  terrain, plus statistical outlier removal.
  (`point_cloud/pdal_pipeline.py`; 4 pipeline presets)

### Added — Multi-temporal Analysis (LiDAR Relief — Temporal group)

- **Multi-temporal Change Detection**: Compute a probabilistic DEM of
  Difference (DoD) between two temporally separated DEMs with
propagated
  RMSE-based Level of Detection (LoD) masking. Outputs include signed
DoD
  raster, significance mask (erosion/deposition), and cut/fill volume
report.
  (`temporal/dem_difference.py`; algorithm: `temporal_difference`)

### Added — Multi-Sensor Fusion (LiDAR Relief — Fusion group)

- **Multi-Sensor Fusion**: Co-register Sentinel-2 multispectral bands
with
  LiDAR relief and apply blend recipes combining topographic and
spectral
  information. Four recipes: Terrain+CIR (SVF + Colour Infrared), Crop
Mark
  Enhancement (Local Dominance + true colour), Erosion Risk (Slope +
SWIR),
  and Bare Earth Composite (SLRM + SWIR). Blend modes: luminance
overlay,
  overlay, multiply, screen.
  (`fusion/sentinel_fusion.py`; algorithm: `multi_sensor_fusion`)

### Added — AI/ML Inference (LiDAR Relief — AI/ML group)

- **AI Feature Detection**: Load user-provided ONNX models for object
  detection (YOLO) or semantic segmentation (U-Net) on plugin
visualizations.
  Features tiled processing for large rasters, Non-Maximum
Suppression,
  confidence filtering, and GeoPackage export of bounding box
detections.
  Pure NumPy preprocessing — no OpenCV dependency at inference time.
  (`ml/detector.py`; algorithm: `ai_feature_detection`)

### Added — GPU Acceleration

- **CuPy Compute Backend**: Transparent GPU acceleration for
computationally
  intensive horizon-scanning algorithms (SVF, Openness). Automatically
detects
  CUDA availability and dispatches to CuPy with graceful NumPy
fallback. Uses
  the trigonometric identity `sin(arctan(dz/d)) = dz / sqrt(dz² + d²)`
for GPU-
  optimized horizon scanning. (`gpu/compute_backend.py`)

### Fixed
- Fixed missing `compute_mstp` wrapper function in `core/mstp.py` that
caused an
  `ImportError` when running the e4MSTP algorithm via Batch mode.

---

## [1.3.5] - 2026-06-04

### Fixed
- Fixed missing `compute_mstp` wrapper function in `core/mstp.py` that
caused an
  `ImportError` when running the e4MSTP algorithm via Batch mode.

---

## [1.3.4] - 2026-05-31

### Changed
- Bumped version to clear broken 1.3.3 release tag.
- Updated changelog to document all algorithms added since initial
release.
- Added `package.sh` helper script for correct local ZIP packaging.
- Removed leftover development scripts from project root.

---

## [1.3.3] - 2026-05-31

### Fixed
- Corrected plugin ZIP structure: files are now correctly nested under
a `lidar_relief/` parent directory as required by the QGIS Plugin
Manager. Previous releases had files at the archive root, causing
installation to fail.

---

## [1.3.0] - 2026-05-26

### Added
- Enhanced 4-Scale Topographic Position (e4MSTP) composite
visualisation (Kokalj 2025 method).
- PCA RGB Composite algorithm combining SVF, Openness, Slope, and
Local Dominance into a single colour output.
- ML-Ready Export (VRT Stack) tool for machine learning and multi-band
analysis workflows.

---

## [1.2.0] - 2026-05-26

### Added
- Topographic Openness algorithm (positive and negative modes).
- Multi-Scale Topographic Position (MSTP) algorithm.
- VAT Composite algorithm.
- Anisotropic Sky-View Factor (ASVF) with configurable illumination
direction and weight.
- Simple Red Relief and Blend algorithms.
- Local Dominance algorithm.
- Landscape Scale Presets for the Batch algorithm: Flat/Agricultural,
Forested, Upland/Steep, and Coastal — parameters derived from
peer-reviewed LiDAR visualisation literature.

---

## [1.1.0] - 2026-05-26

### Added
- Tile-based processing engine (`process_in_tiles`) for
memory-efficient handling of large DEMs.
- Automatic layer styling post-processor applied to all algorithm
outputs.

### Changed
- Refactored all algorithms to share a common raster I/O utility
layer.

---

## [1.0.13] - 2026-05-25

### Fixed
- Added `contents: write` permissions to the GitHub Actions release
workflow.

---

## [1.0.12] - 2026-05-25

### Fixed
- Added `--release-tag` flag to `qgis-plugin-ci` publish command to
fix GitHub Release lookup.

---

## [1.0.11] - 2026-05-25

### Fixed
- Corrected `.qgis-plugin-ci` GitHub repository configuration
parameter names.

---

## [1.0.10] - 2026-05-25

### Fixed
- Added GitHub org/repo configuration to `.qgis-plugin-ci`.

---

## [1.0.9] - 2026-05-25

### Fixed
- Corrected `.qgis-plugin-ci` formatting to valid YAML.

---

## [1.0.8] - 2026-05-25

### Fixed
- Fixed `ImportError` catching logic in the `scipy` fallback path.

---

## [1.0.7] - 2026-05-25

### Fixed
- Fixed numpy fallback broadcast shape error in SLRM Gaussian
filtering.

---

## [1.0.6] - 2026-05-25

### Fixed
- Fixed GitHub Actions release workflow failing due to missing OSGEO
credentials.

---

## [1.0.5] - 2026-05-25

### Changed
- Removed unused `docs/` folder from version tracking.
- Fixed README ZIP installation instructions.

---

## [1.0.4] - 2026-05-25

### Changed
- Removed `experimental` flag so the plugin is visible to all users by
default in the QGIS Plugin Manager.

---

## [1.0.3] - 2026-05-25

### Fixed
- Bypassed mutually exclusive `W503`/`W504` flake8 lint rules using
`any()`.

---

## [1.0.2] - 2026-05-25

### Fixed
- Resolved remaining PEP8 `W503` warnings for the QGIS linter.
- Standardised file permissions across the package.

---

## [1.0.1] - 2026-05-25

### Fixed
- Fixed PEP8 formatting issues (W291, W293, W503) and removed unused
imports (F401).
- Updated plugin homepage, repository, and tracker metadata links.
- Included `LICENSE` file in the QGIS package.
- Updated QGIS compatibility range to 3.0–4.99.

---

## [1.0.0] - 2026-05-25

### Added
- Initial release.
- Multi-directional Hillshade algorithm.
- Simple Local Relief Model (SLRM) algorithm.
- Sky-View Factor (SVF) algorithm.
- Slope algorithm (degrees and percent).
- Batch mode for running multiple algorithms on the same DEM in one
pass.

None