v1.0.35

1.0.35.0 - 2026-10-04

• Folder stepping now skips files that fail to open instead of repeatedly retrying the same unsupported or corrupt image. Filmstrip previews prefer direct decoding over decorated shell thumbnails and correct provisional aspect ratios when final pixels arrive.
• Unified viewer motion: panels enter with cubic deceleration and leave along the same path with cubic acceleration; interrupted motion resumes at its current position. Zoom follows rendering frames and elapsed time, including fit/fill/1:1 actions, and keeps swap-chain dimensions stable during gestures. Custom motion follows the system animation setting.
• Kept the toolbar visible while hovered or keyboard-focused, stabilized filmstrip proportions before refined thumbnails arrive, and prepared decoded images before replacing the visible document. Image handoff no longer explicitly redraws the old image using the next image's layout.

Install

1. Download HdrImageViewer-1.0.35-win-x64-portable.zip.
2. Extract the zip to a normal folder, for example C:\Apps\HdrImageViewer.
3. Run HdrImageViewer.exe.

Requires the x64 .NET 10 Desktop Runtime and Windows App Runtime 2.2. No certificate installation is required for the portable zip. Windows may show a SmartScreen warning because this GitHub build is unsigned.

Recommended Install

For most users, install the Microsoft Store version so Windows handles signing and updates.

Bundled Format Tools

The x64 portable build includes the pinned JPEG XL, AVIF, HEIC, OpenEXR and Ultra HDR codecs and command-line tools. No separate MSYS2 installation is required for these formats.

JPEG Ultra HDR and HEIC / AVIF ISO Gain Map exports support monochrome and RGB gain maps. Codec versions and source checksums are recorded in eng/codecs.lock.json.