Portable FastStone Image Viewer full changelog

Added "Search by Name" to toolbar above thumbnail browser
Added drag-and-drop functionality to viewing panel. You can drag and drop image or video files from external sources (e.g. Windows File Explorer) into image viewing area to view files directly
Added Shadows and Highlights to batch conversion tool (Advanced Options -> Adjustments)
Added Contrast and Gamma options to Scan Board
Added keyboard shortcuts to change "Auto Image Size" option. Press Ctrl+Shift+K for "Auto Fit". Press Ctrl+Shift+L for "Lock Zoom Ratio"
Added more options to "Mouse Click" in Settings window
Added "Load from File" and "Save to File" in Settings window
Added support for AVIF format
Presets in Resize tool are customizable
Moved Rename tool to a higher position to avoid covering the center of the image
Enhanced Draw Board:
Added Text with effects (curve, outline and shadow)
Added Emojis
Added preset color lists (click * button to select a preset color)
Flip/Rotate image objects

Added dark (almost black) theme. Now there are 3 themes (Bright, Gray and Dark) under Settings menu
Added support for audio formats, which can be enabled in the Video tab of Settings window
Many other minor improvements and bug fixes

Supports HEIC and WEBP formats on Windows 10
Added Lens Model to EXIF list
Improved color accuracy when loading CMYK jpeg images
Improved stability when processing corrupted or ill-intentioned images

New Detected:
BKDR_DALGAN.ZTGA-A
Backdoor.AutoIt.NANOCORE.JD
Backdoor.Linux.HAKAI.AA

Added multithreading support to the built-in batch convert tool. Now it can process multiple images simultaneously (FASTER)
Added Auto-deskew option to the scan tool
Many other minor improvements and bug fixes

Improved performance of:
Loading TIFF files
Updating changes in current folder
Activating magnifier

Improved performance:
Load images faster
Open big folders faster
Copy / Move files faster

Enhanced the internal Video Player and Scan Tool
Used Q as the shortcut key to tag/untag files
Used Ctrl+Shift+D as the shortcut key to turn on/off preview on secondary monitor
When Startup Folder is set to System Default, you will have an option to auto-clear history of visited folders