ImgConverter v3.5.0

Premium workspace redesign

• Reframed the desktop workflow as Source → Output recipe → Batch summary with responsive wide and compact layouts.
• Added a unified line-icon system, new ImgConverter app icon, clearer hierarchy, progressive disclosure, and polished empty/busy/success/error states.
• Reworked History, Watch, Plugins, Duplicate Finder, Command Preview, and File Manager dialogs into the same visual system.
• Hardened scan/conversion state restoration, stale-result invalidation, cancellation/partial-failure reporting, and completed-output actions.
• Added GUI and packaging regressions, including responsive behavior, semantic state, checkbox rendering, shortcut absence, and frozen multiprocessing startup.

Verification

• 192 tests passed; 3 optional-dependency tests skipped.
• Clean isolated PyInstaller 6.21.0 build on Python 3.12.10.
• Packaged executable converted a PNG fixture to WebP successfully.
• SHA-256 checksum, dependency inventory, SBOM, and provenance are attached.

The Windows executable is unsigned because no trusted code-signing certificate is available on the build host.

v3.3.4

Added

• Persistent batch session history: completed GUI and CLI batches append redacted local history records with option summaries, counts, byte totals, failure counts, and report/support-bundle pointers. The GUI exposes a read-only Batch History dialog, and --history prints the same redacted history as JSON.

v3.3.3

[v3.3.3] — 2026-06-28

Fixed

• Entry-point plugin trust pinning: Package entry-point plugins now store and verify a digest of installed module and distribution metadata files, so same-version package code changes are reported as changed and skipped until re-trusted.

v3.3.2

[v3.3.2] — 2026-06-28

Fixed

• SDK-only C2PA verification: C2PA-marked sources now run provenance verification when c2pa-python is installed even if the c2patool binary is absent, while preserving the existing c2patool fallback.

v3.3.1

[v3.3.1] — 2026-06-27

Fixed

• Multi-frame ConvertOptions parity: --frames all / --frames animate now routes through ConvertOptions, so quality, resize, compression, DPI, and metadata choices are honored consistently with single-frame conversion.

Changed

• Drained ROADMAP.md to actionable-only state and kept true blockers in Roadmap_Blocked.md.
• Synced docs with local-build-only releases and Pillow-native QOI support.

HEICShift v2.8.0

What's New

• Live scan feedback — per-directory progress in log, live stats panel updates, running totals in status bar, pulsing progress bar during scan
• XMP metadata passthrough for AVIF/JXL output
• UI scaling — QScrollArea + QSplitter, reduced minimum size (700x520), column stretch for grid layouts
• Removed rigid pixel constraints for better display adaptation
• Lossless WebP checkbox hidden in Auto mode
• Resize mode preserves user values across format changes
• Format index bounds check on settings restore

HEICShift v2.7.0

What's New

• JPEG XL output format — encode to JPEG XL via pillow-jxl-plugin with quality slider and effort tuning (conditional on plugin availability; disabled in GUI/CLI when not installed)
• CLI full option parity — new --tiff-compression (none/lzw/deflate), --png-level (1-9), and --resize scale:VALUE flags
• CLI progress counters — every line now shows (15/100) progress, final summary includes wall-clock time and files/sec
• Sorted scan results — deterministic file ordering in both directory scans and drag & drop

CLI Examples

# Convert to JPEG XL
python heicshift.py --input ./photos --format jxl --quality 90

# Resize by scale percentage
python heicshift.py --input ./photos --resize scale:50

# TIFF with LZW compression
python heicshift.py --input ./photos --format tiff --tiff-compression lzw

# PNG with max compression
python heicshift.py --input ./photos --format png --png-level 9

HEICShift 2.7.0

Full Changelog: v2.6.0...2.7.0

HEICShift v2.6.0

What's New

• AVIF output format — next-gen AV1 codec via Pillow's native encoder with quality slider, best compression ratio
• CSV conversion report — export structured per-file report with status, sizes, timing, and warnings
• Drag & drop individual files — drop image files directly onto the window (not just folders)
• CLI full parity — 8 new flags: --skip-existing, --progressive, --chroma-420, --lossless, --srgb, --prefix, --suffix, --no-structure
• Wall-clock time — done summary now shows actual elapsed time alongside processing time

CLI Examples

# Convert to AVIF with sRGB color conversion
python heicshift.py --input ./photos --format avif --srgb

# Progressive JPEG with prefix, skip already-converted
python heicshift.py -i ./photos -f jpeg --progressive --prefix "web_" --skip-existing

HEICShift v2.5.0

What's New

CLI Mode

Run HEICShift from the command line for scripted or headless operation. If --input is provided, the GUI is skipped entirely.

python heicshift.py --input ./photos --format jpeg --quality 85
python heicshift.py --input ./photos --dry-run
python heicshift.py --version

Flags: --input, --output, --format, --quality, --workers, --in-place, --recursive/--no-recursive, --dry-run, --strip-metadata, --resize max_dim:1920, --version

Exit codes: 0 (all OK), 1 (partial failure), 2 (total failure / bad input)

Safety & Diagnostics

• Disk space pre-check — blocks conversion if estimated output exceeds available space, warns at 80%
• Resize upscaling guard — warns when image is already smaller than the resize target instead of silently skipping
• Better error logging — new [WARN] log lines for sRGB conversion failures, RAW metadata absence, and resize skips
• Dependency version logging — startup log now shows Pillow, pillow-heif, PyQt6, and optional dependency versions
• Stats color reset — stat label colors (skipped/failed/saved) now reset to green on new batch start

UX Polish

• File count in title bar — shows file count after scan, progress during conversion, summary when done
• Auto-open output folder — new checkbox to automatically open the output folder when conversion finishes
• Strip metadata — new option to remove all EXIF/ICC/XMP from output files (mutually exclusive with preserve)