IrfanView

Version 4.70 ( - CURRENT VERSION - )(Release date: 2024-10-11)
New option: Keep existing alpha/transparency color (Properties->Viewing)
Show checkerboard image; Alpha/Color also used for saving
New option in Increase Color Depth dialog: 32 BPP (with alpha layer)
New option in Replace Color dialog: Set transparent color (if 32 BPP image)
New Image menu: Edit or Set alpha/transparency color>
New option: Show Browse buttons in main window (Properties->Browsing)
Fine Rotation option can work on selections
New in OCR PlugIn: read QR or Barcode (thanks to ZXing guys)
New slideshow hotkey: SHIFT + "," (comma): Toggle random and automatic time
New Print dialog option: Reverse pages (for multipage images, page ranges)
Support for EXIF data in WEBP files (EXIF dialog)
Command line: "/effect" can be combined with "/slideshow", like:
i_view64.exe /slideshow=c:\mypics.txt /effect=(30,0,0)
(CADImage, Formats, CamRAW, DjVu, JPM, ECW, WSQ)
SVG PlugIn loading bugs fixed (thanks to nerty_nerty)
EXR PlugIn loading bugs fixed (thanks to leeho and Who4mI)
Several PlugIns are changed/updated, please install the newest versions:

Version 4.67 ( - CURRENT VERSION - )(Release date: 2024-04-05)
Smaller fixes (Insert Text, Paste warning, Hex viewer, Auto adjust colors)
Separate overwrite option for Save/Save-As menus (Properties->File Handling)
The Insert Text dialog will remember the last screen position
New OCR PlugIn: requires Tesseract OCR (Properties->PlugIns)
See "i_plugins.txt" for infos (https://github.com/UB-Mannheim/tesseract/wiki
Support for PNG comment (Image->Info dialog or $C placeholder; reading only)
SFF PlugIn loading bugs fixed (thanks to Mateusz "LeftarCode" Lewczak)
EXR PlugIn loading bugs fixed (thanks to Minji Kim and Jaehun of WHS WWW Team)
PSP/Formats PlugIn loading bug fixed (thanks to wangmy)
Loading issues in several PlugIns fixed (thanks to Trend Micro)
Fixed PlugIns: Formats, DPX/CIN, WSQ, MrSID, AWD
PSP/Formats PlugIn loading bug fixed (thanks to wangmy)
PSP/Formats PlugIn loading bug fixed (thanks to wangmy)
Copyright © 1996-2024 by Irfan Skiljan. All Rights Reserved. Hosted by domainunion.

Version 4.66 ( - CURRENT VERSION - )(Release date: 2023-12-20)
Fixed problem with network paths in Save-As dialog>
Fix for text alignment in Insert Text dialog (selection/canvas)
SVG PlugIn loading bugs fixed (thanks to nerty_nerty)
Download newest PlugIns version from:
https://www.irfanview.com/plugins.htm
Version 4.65 (Release date: 2023-12-09)
SVG PlugIn loading bugs fixed (thanks to nerty_nerty)

Support-Donate
Version 4.65 ( - CURRENT VERSION - )(Release date: 2023-12-09)
Option for Dark mode: Properties->Viewing (works best with Windows 10/11)
(thanks to Richard Yu, Stephen Eckels, adzm)
New option in Insert Text dialog: Text rotation (90 deg for vertical text)
New in Slideshow dialog: Option to set different time for each file
(new button: "Change time" for selected files)
"Paste into Selection": Second paste (CTRL+V) will also apply the image
New Hotkey after "Paste into selection":
SHIFT + Click within selection: Apply pasted image and keep selection
New Edit menu: Apply image effects to inverted selection (non-selected area)
New option in Properties->Editing: Set custom filename for pasted image
Option to read XMP data in the IPTC dialog (thanks to Lee Thomason)
New Histogram effects in Effects Browser dialog (thanks to Richard Heurtley)
Improved support for tabs in text in Insert Text dialog (CTRL + Tab)
New PlugIn for AVIF format
The Replace File dialog shows preview of both images
The Fine Rotation dialog can be resized
New in Fine Rotation dialog: draw a straight line to rotate
(省略されました)

Version 4.62 ( - CURRENT VERSION - )(Release date: 2022-12-09)
New PDF PlugIn (thanks to Pdfium guys)
Option to save slideshow as MP4 video (Thanks to Shao Voon Wong)
New options menu: Append current image to PDF (Options->Multipage images)
New options menu: Edit multipage PDF (Options->Multipage images)
New "Adobe 8BF filters" PlugIn (also for 64-bit 8BF, thanks to Sinisa Petric)
New in Advanced Batch dialog: All effects (Effects Browser dialog) can be used
New in Properties->Extensions dialog: Load only minimal (browsing) extensions
The selection rectangle can be resized on corners (with CTRL = proportional)
Change for "Paste into Selection": you can move/resize the selection rectangle/image;
   click to apply selection image to main image
New option in "Compare images" dialog: Show difference image
New effect in Image->Effects menu: Skew/Shear image
New hotkey: CTRL + SHIFT + G: Start Google Maps with GPS of the loaded file
New command line option: /fs_exit
   => if started in fullscreen mode; ESC closes fullscreen and IrfanView
Old/obsolete JPG options disabled: "Load as grayscale" and "Save as grayscale"
   (easy to forget; can be re-enabled using new INI flags)
Removed very old PlugIn: FiltersUnlimited

Poland
Version 4.60 ( - CURRENT VERSION - )(Release date: 2022-03-18)
JPG save preview dialog: Options to zoom/scroll the preview image
New option in File menu: Compare current image with another image
Option for Favorite menus (Edit menu); Right mouse click on menu item
Options menu to "Create new EXIF data" in JPGs without EXIF
New browsing options for mouse wheel (Properties->Browsing)
Support for QOI format (Formats PlugIn, reading and saving)
Improved DDS loading (BC7 compression, thanks to Richard Geldreich)
TIF loading fixed (Thanks to Aslan Gurtsiev, CVE-2021-46064)
New hotkey: ALT + SHIFT + B: Show thin or normal border (current session only)
Copyright © 1996-2022 by Irfan Skiljan. All Rights Reserved. Hosted by domainunion.

Version 4.59 ( - CURRENT VERSION - )(Release date: 2021-12-01)
New JPG saving option: Show preview image (to adjust quality and filesize)
Support for JXL format (JPEG XL, reading and saving; PlugIn)
   (must be enabled in menu: Help->Installed PlugIns)
New effect in Image->Effects menu: Tilt-Shift
Options for SVG loading (Properties->PlugIns)
New Edit menu: Show selection from "Auto crop borders" (can be used for e.g. Lossless JPG Crop)
Improved support for EXIF data in HEIC and CR3 files (EXIF dialog)
New print dialog option: Fill paper - for "Best fit to page"
Help text added to some options in Lossless-JPG dialog (thanks to forum users)
New command line option: /contactsheet=(filenames)
   => make Contact Sheet using dialog options (see "i_options.txt")

Version 4.58 ( - CURRENT VERSION - )(Release date: 2021-05-26)
New option in Add-Text dialog: add text above/below image (add canvas)
New in Add-Text for Batch mode: Scale font based on desktop height
New Resize dialog option: Set size in MegaPixels
New option in File-Copy/Move dialog: Create duplicate file (for existing files)
New option: Keep mouse on Next/Prev-file toolbar buttons (Properties->Viewing)
New PlugIn: OptiPNG (Optimized PNG saving, thanks to Cosmin Truta)
PNGOUT PlugIn has been removed (use OptiPNG in PNG save options)
RIOT PlugIn has been removed (use "Set JPG file size" in JPG save options)
GIF animation bug fixed (thanks to Filipe Oliveira, Tempest Security Intelligence)
Several loading bugs in Formats PlugIn fixed (thanks to Moshe Kaplan)
WPG PlugIn loading bugs fixed (thanks to SEC Consult Vulnerability Lab: CVE-2021-27224 and CVE-2021-27362)
Updated panda (thumbnails) icon

Version 4.57 ( - CURRENT VERSION - )(Release date: 2021-01-13)
Improved option "Try registry changes" (Properties->Extensions)
Option to use new Windows File-Open dialog (Properties->Misc)
Option to create only Shortcuts (LNK file) in File-Copy dialog
New Camera RAW PlugIn (based on LibRAW, thanks to Alex Tutubalin)
Support for WPG format (PlugIn, WPG version 1; thanks to Flurmy)
Improved GIF reading
PCX loading bug fixed (thanks to @DmitriyMelikov, CVE-2020-35133)
MNG PlugIn loading bug fixed (thanks to ThanhTP)
PCX format moved to FORMATS PlugIn
Copyright © 1996-2021 by Irfan Skiljan. All Rights Reserved. Hosted by domainunion.

Version 4.56 ( - CURRENT VERSION - )(Release date: 2020-10-21)
Updated Video PlugIn (improved Win10 compatibility, new player for MP3/FLAC)
Option to play all audio formats in main window (Properties->Video/Sound)
Option to change hotkeys for menus: Right mouse click on menu item
New option in Paint dialog: Fill rect/ellipse with transparent color
New "Edit->Insert Watermark" option: Use color to highlight an area
Option to disable mouse wheel for file browsing (Properties->Browsing)
New SVG PlugIn (Thanks to seppesol)
New XCF PlugIn (Thanks to Jacek SQ6KBQ)
New JPG option: Use QuantSmooth loading (PlugIn, thanks to Ilya Kurdyukov)
Option for page/frame filename suffix in Multipage-Extract dialog
CTRL + "Save-As" icon on toolbar calls the "Save" menu
New option in Advanced batch dialog: Add Border/Frame
New option in Insert Text dialog: Settings for Outline-1 effect (Rainbow)
New paste option: Change paste counter (Edit->Paste special)
New shapes in Hexagon dialog: Ellipse, Cloud; Spiral (thanks to Rod Stephens)
New option in Hexagon/Shadow dialog: Background transparency
Support for PSB format (Photoshop files)
Context menu added to EXIF dialog (Copy only selected lines)
(省略されました)

Version 4.54 ( - CURRENT VERSION - )(Release date: 2019-12-12)
Multiple Undo/Redo steps added (max. 20 steps, Properties->Editing)
Zoom magnifier added to fullscreen mode
Option to disable Zoom magnifier (Properties->Viewing)
Profiles option added to Print dialog
New option in Properties->Fullscreen: Set horizontal and/or vertical centering
New option in Print dialog: Set horizontal and/or vertical centering
Option to set selection border thickness (Properties->Editing)
Option to enable/disable PlugIns (Help->Installed PlugIns)
Extended sidecar files option: Copy/Move possible (Properties->File Handling)
New Canvas dialog option/method: Set aspect ratio
New option in Watch/Hot Folder dialog: Watch subfolders
New Lossless JPG Dialog option: Add (or Replace) ICC color profile
New Thumbnails option: Keep focus in folder tree (after folder change/click)
Option to show Color Corrections dialog in dark mode
Fix in Metadata PlugIn (crash with bad EXIF tag in CR2 files; KVE-2019-1184)
BMP loading bug fixed (thanks to Joshua Faust, CVE-2019-16887)
JP2 PlugIn loading bug fixed (thanks to Linhlhq)
ANI PlugIn loading bug fixed (thanks to Linhlhq, CVE-2019-17252)
(省略されました)