There were numerous changes here are only the more important things.
Version 3.90 ( - CURRENT VERSION - ) (Release date: 09.04.2004)
Improved print dialog
Improved Contact Sheet option
New options for Slideshow/Fullscreen
New options for Batch conversion/rename
New options for HTML export (Slideshow, Templates)
New pattern/display options for: Slideshow, Fullscreen, Print, Insert Text, Contact Sheet, HTML-Export, Batch Rename (use EXIF/IPTC values)
Transparent PNG saving added
New option: Canvas size (Create image border) (Image menu and Batch mode)
New hotkeys: E = show EXIF info, CTRL+I = show IPTC info, F4 = append current file to slideshow
Option to start IrfanView in fullscreen mode (Properties->Misc 1)
Selection: proportional resize possible (press/hold CTRL key down)
New command line option: /multitif=(tifname,file1,...,fileN)
Example: i_view32 /multitif=(c:\test.tif,c:\test1.bmp,c:\dummy.jpg)
=> Create multipage TIF (test.tif) from 2 other files
New command line option: /append=tiffile
Example: i_view32 c:\test.jpg /append=c:\test.tif
=> Open 'c:\test.jpg' and append it as (TIF) page to 'c:\test.tif'
New command line options: /hflip and /vflip (horz. and vert. flip)
Example: i_view32 c:\test.jpg /vflip
=> Open 'c:\test.jpg' and flip vertically
New command line option: /batchscan=(options)
See "i_options.txt" for an example
New command line options: /jpgq=value; /tifc=value
=> Set JPG save quality; set TIF save compression
New command line option: /wall=X
Example: i_view32 c:\test.jpg /wall=0
=> Set 'c:\test.jpg' as wallpaper (centered)
New command line option: /contrast=value
Example: i_view32 c:\test.jpg /contrast=33
=> Open 'c:\test.jpg' and apply contrast (value 33)
Support for DWF/HPGL formats. PlugIn:
http://www.cadsofttools.com (Shareware)
CTRL+T can be used for internal control-switch in the Thumbnail window
CTRL+A hotkey changed to CTRL+SHIFT+A (File->Acquire)
Multiple monitor support added (Slideshow/Fullscreen)
ECW saving added to ECW PlugIn
New options in Image->Info dialog
Option to show a warning on ESC exit (Properties->Misc 1)
Added options for silent install and uninstall (Check help FAQs)
New command option: /aspectratio; Enable aspect ratio for /resize and /resample
New command line option: /info=txtfile; Write image infos to text file
Example: i_view32 c:\test.jpg /info=test.txt
Example: i_view32 c:\*.jpg /info=jpgs.txt
Most PlugIns are changed/updated, please install the newest versions
http://www.irfanview.com/plugins.htm
Some minor bugs/features fixed/added