Version 4.00 doesn't really mark any significant changes but the previous version which was 3.99 could only be logically followed by incrementing the major number.
Version 4.40 brought in the first native 64 bit release which improved the performance of loading large images (more than 25 megapixels).
Installation and running the program. Most functions seem to work just like on Windows. There are some minor glitches in lossless JPEG transformations, so I'd recommend using a native Linux application like gThumb for it.
What does not
What was not tested
Probably some special functions and formats plugins the common user rarely needs.
|Operating system||Test date||Wine version||Installs?||Runs?||Used|
|Show||Fedora 33 x86_64||Nov 29 2020||5.22||Yes||Yes||No||Platinum||Artem S. Tashkinov|
|Show||openSUSE Leap 42.2 x86_64||Mar 27 2018||3.4||Yes||Yes||Yes||Silver||Rosanne|
|Show||Manjaro Linux||Sep 06 2016||1.9.17||Yes||Yes||Silver||Muttley|
|Show||Fedora 23 x86_64||Jul 14 2016||1.9.12||Yes||Yes||Silver||Richard Hollins|
|Show||Ubuntu 16.04 "Xenial" amd64 (+ variants like Kubuntu)||May 12 2016||1.9.9||Yes||Yes||Platinum||GP|
|Bug #||Description||Status||Resolution||Other apps affected|
|657||Many games and applications need 'mfc42.dll' ('winetricks -q mfc42' is a workaround)||NEW||View|
|4123||Picasa: "Open with..." menu item grayed out.||NEW||View|
|9404||cannot select TWAIN source in irfanview||NEW||View|
|9408||Irfanview cannot scan images||ASSIGNED||View|
|19496||Irfanview reports "Invalid MCI Device ID"||NEW||View|
|25166||Multiple mime type handling registered for different file extensions||NEW||View|
|33978||Bug in converting/rendering Windows Metafile (SetWinMetaFileBits etc.)||UNCONFIRMED||View|
|40119||Irfanview 4.x: selection cursor is not correctly aligned||RESOLVED||WORKSFORME||View|
|42171||IrfanView's 4.44 Help -> About window has wrong placement for textboxes||NEW||View|
|50884||IrfanView WebP plugin edit fields don't accept values above 99||UNCONFIRMED||View|
|51764||Can't enter non-US symbols in IrfanView's Image Editor -> Add Text when the locale is different than en_US.UTF-8||UNCONFIRMED||View|
|53121||IrfanView: In full screen mode the image title is not correctly repainted when switching between images||UNCONFIRMED||View|