chore: release version 0.7.0

Finalize changelogs and update version numbers across configuration
files for the 0.7.0 release. Includes Python 3.14 support metadata.

Author: arrufat

CHANGELOG.md

@@ -1,5 +1,39 @@
 # Changelog
 
+## [0.7.0] - 2025-10-08
+
+### Major Features
+
+#### Image Quality Metrics
+- **Structural Similarity Index (SSIM)**: Added `Image.ssim` to compute perceptual similarity using the standard 11×11 Gaussian window and Rec. 709 luminance weighting, with support for grayscale and RGB/RGBA data.
+
+#### Linear Algebra & Geometry
+- **Moore–Penrose Pseudoinverse**: Added `Matrix.pseudoInverse` with tolerance controls and rank reporting, enabling stable solutions for rectangular systems.
+- **Improved Affine Fitting**: `AffineTransform.init` now uses the pseudoinverse to support overdetermined point sets while preserving numerical stability.
+
+### Breaking Changes
+- **Image Processing Outputs**: All image filters and morphology routines now expect the caller to supply an initialized output image (`Image.initLike`/`dupe`). `Image.crop` and `Image.rotate` return freshly allocated images instead of writing through an output pointer.
+- **Geometry Point API**: Replace `Point.point(...)` with the new `Point.init(...)` constructor; the legacy helper has been removed.
+- **Meta Utilities**: `meta.clampU8`/`clampTo` have been consolidated into the generic `meta.clamp(T, value)` helper and must be updated accordingly.
+
+### Architecture & API Improvements
+- **Unified Border Handling**: Introduced `image/border.zig` to centralize zero, replicate, mirror, and wrap modes used across convolution and order-statistic filters.
+- **Running Statistics**: `RunningStats` gains an explicit `.init()` constructor, clearer reset semantics, and broader edge-case coverage in tests.
+- **Matrix Errors**: Added `MatrixError.NotConverged` so SVD-backed routines report convergence failures instead of silently returning invalid data.
+
+### Performance Optimizations
+- **PCA**: SIMD-accelerated `project`/`reconstruct` paths for f32 and f64 reduce latency on high-dimensional datasets.
+
+### Bug Fixes
+- **Compression**: Deflate encoder/decoder now clear internal state when reused, preventing cross-run contamination.
+- **Canvas**: Row indexing honors image stride, fixing drawing artifacts on non-contiguous buffers.
+- **Geometry**: `Rectangle.contains` rejects NaN inputs and `Rectangle.overlaps` correctly enforces the configured IoU threshold.
+- **Edge Detection**: Corrected source/destination ordering during gradient copying, fixing regression in the edges module.
+
+### Tooling & Documentation
+- **Python Toolchain**: Minimum supported Python bumped to 3.10 with full CI coverage through Python 3.14.
+- **Docs**: Expanded Python README with badges, feature overview, and clarified version matrix.
+
 ## [0.6.0] - 2025-09-30
 
 ### Major Features

bindings/python/CHANGELOG.md

@@ -1,5 +1,21 @@
 # Python Bindings Changelog
 
+## [0.7.0] - 2025-10-08
+
+### Added
+- **Matrix Numeric Protocol**: `Matrix` objects now participate fully in Python arithmetic (`+`, `-`, `*`, `/`, unary `-`, scalar combos, and `@` for matrix multiplication) while preserving float64 semantics.
+- **Linear Algebra Suite**: Added `.transpose()`, the `.T` property, `.inverse()`, `.det()`, `.norm()`, `.dot()`, `.gram()`, `.cov()`, and element-wise helpers like `.pow()`, along with new convenience constructors `.zeros()`, `.ones()`, `.identity()`, and `.random(seed=...)`.
+- **Decomposition APIs**: New `.lu()`, `.qr()`, `.svd()`, `.rank()`, and `.pinv()` methods expose the underlying Zig implementations and return rich dictionaries (e.g., `{q, r, rank, perm}` for QR).
+- **Image Quality Metric**: Added `Image.ssim()` for perceptual comparisons that mirrors the Zig SSIM implementation (requires images ≥11×11).
+
+### Changed
+- **Python Support Matrix**: Package now requires Python 3.10 or newer and advertises support through Python 3.14; metadata and documentation were updated accordingly.
+- **Integer Handling**: Argument parsing uses CPython’s `LongLong` conversions to accept full 64-bit integers in matrix APIs.
+
+### Fixed
+- **Image Ownership**: Resolved stale view pointers when Python takes ownership of image buffers, preventing latent crashes when re-wrapping Zig images.
+- **Image Views**: Corrected dereferencing while creating Python image views so stride/addressing stay aligned with Zig-side expectations.
+
 ## [0.6.0] - 2025-09-30
 
 ### Added

bindings/python/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "zignal-processing"
-version = "0.7.0.dev"
+version = "0.7.0"
 description = "Zero-dependency image processing library"
 readme = "README.md"
 authors = [{name = "zignal contributors"}]
@@ -19,6 +19,7 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
     "Topic :: Multimedia :: Graphics",
     "Topic :: Scientific/Engineering :: Image Processing",
 ]

build.zig.zon

@@ -1,13 +1,14 @@
 .{
     .name = .zignal,
-    .version = "0.7.0-dev",
+    .version = "0.7.0",
     .fingerprint = 0x5303c43db377b63a,
     .minimum_zig_version = "0.16.0-dev.368+2a97e0af6",
     .dependencies = .{},
     .paths = .{
         "build.zig",
         "build.zig.zon",
         "src",
+        "bindings",
         "LICENSE",
         "README.md",
     },