@@ -5,26 +5,34 @@ All notable changes to the Sharp Frames project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [0.4.0] - 2026-07-16
+## [0.4.0] - 2026-07-18
 
 ### Added
-- Scrollable frame timeline with keyboard navigation and full-result visualization
+- Scrollable full-frame selection timeline with click-to-inspect and keyboard navigation
+- Inline terminal frame preview via Sixel/Kitty raster graphics with an external-viewer fallback
+- Automatic color space detection and conversion to sRGB for HDR and wide-gamut sources (BT.2020, HLG, PQ)
 - Resolution-normalized focus scoring for more consistent comparisons across source sizes
-- Cross-platform CI coverage for Python 3.10 through 3.13 on Linux, macOS, and Windows
+- Trend-aware outlier detection with improved defaults
+- Responsive selection layout that keeps the preview and chart visible on short terminals
+- Shared alpha-preserving image decode/resize/encode helpers
+- Cross-platform CI coverage for Python 3.10 through 3.13 on Linux, macOS, and Windows, plus the minimum supported Textual version
 - Regression coverage for selection quality, output collisions, cancellation, and runtime cleanup
 
 ### Changed
 - Selection methods now balance sharpness and temporal distribution more consistently
 - Frame extraction, analysis, preview, and saving pipelines provide stricter validation and failure reporting
 - Image-directory exports preserve content while correctly handling format conversion and case-insensitive filename collisions
-- Configuration and selection screens provide clearer controls, status, and keyboard behavior
+- Configuration and selection screens provide clearer controls, status, and keyboard behavior; the processing screen is vertically centered
+- Textual requirement raised to 5.0 or newer; new dependencies `textual-image` and `Pillow`
 
 ### Fixed
 - FFmpeg and FFprobe process cleanup, cancellation, timeout, and pipe handling
 - Partial or failed image reads being treated as valid zero-quality frames
 - Selection previews disagreeing with the frames produced during processing
 - Output metadata reporting frames that were not successfully saved
 - Platform-specific dependency guidance and Windows-safe process startup
+- Start Over after saving returning to the middle of setup instead of the first step
+- Cancel during setup leaving the application running on an empty screen
 
 ## [0.3.1] - 2025-01-29
 
 
@@ -2,23 +2,28 @@
 
 ## Highlights
 
-- Explore the complete analyzed frame set in a scrollable timeline with keyboard navigation.
-- Get more reliable selections from resolution-normalized focus scoring and improved temporal distribution.
+- Explore the complete analyzed frame set in a scrollable timeline — click any bar to preview that frame directly in the terminal.
+- iPhone and HDR sources (BT.2020, HLG, PQ) are detected and converted to sRGB automatically.
+- Get more reliable selections from resolution-normalized focus scoring, trend-aware outlier detection, and improved temporal distribution.
 - Preview and execution now share the same selection rules, so displayed counts and chosen frames agree.
 
-## Reliability and Compatibility
-
-- Hardened FFmpeg and FFprobe cancellation, timeouts, output draining, and temporary-directory cleanup.
-- Unreadable images are excluded and reported instead of silently receiving valid-looking scores.
-- Image exports handle format conversion, partial failures, metadata accuracy, and case-insensitive filename collisions.
-- CI covers Linux, macOS, and Windows on Python 3.10, 3.11, 3.12, and 3.13.
-
 ## Interface Improvements
 
+- Full-frame selection timeline with click-to-inspect, horizontal scrolling, and keyboard navigation (arrows, PgUp/PgDn through selected frames, Ctrl+PgUp/PgDn paging, Home/End).
+- Inline frame preview rendered through Sixel or Kitty terminal graphics, with an external-viewer fallback (press `O`).
+- Responsive layout keeps the preview and chart visible on short terminals (down to 80×24) while preserving the spacious layout on large ones.
+- Start Over returns to the first setup step with a clean configuration, and Cancel exits the application.
 - Clearer configuration controls and validation feedback.
-- Improved selection chart contrast, spacing, scrolling, and keyboard controls.
 - More actionable dependency and processing errors across supported platforms.
 
+## Reliability and Compatibility
+
+- HDR and wide-gamut color spaces are converted to sRGB/BT.709 through FFmpeg `zscale`, with a clear error for unsupported BT.2020 constant-luminance sources.
+- Hardened FFmpeg and FFprobe cancellation, timeouts, output draining, and temporary-directory cleanup.
+- Unreadable images are excluded and reported instead of silently receiving valid-looking scores.
+- Image exports preserve alpha and handle format conversion, partial failures, metadata accuracy, and case-insensitive filename collisions.
+- CI covers Linux, macOS, and Windows on Python 3.10, 3.11, 3.12, and 3.13, plus the minimum supported Textual version.
+
 ## Upgrade
 
 ```bash
@@ -27,4 +32,4 @@ pip install --upgrade sharp-frames
 pipx upgrade sharp-frames
 ```
 
-FFmpeg and FFprobe remain required for video processing and must be available on `PATH`.
+New dependencies (`textual-image`, `Pillow`) install automatically. FFmpeg and FFprobe remain required for video processing and must be available on `PATH`; HDR-to-SDR conversion additionally requires FFmpeg built with `zscale`/`libzimg` support.