Software update: WinMerge 2.16.40

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A new stable version of WinMerge has been released. WinMerge allows files or folders to be compared with each other: useful, for example, to see what has changed between different pieces of source code or to sift through the contents of log files. The program includes syntax highlighting and the application can create patch files based on the discovered differences. The following changes and improvements have been made in this release:

What Is New in 2.16.40


  • BugFix: Fixed several Wine-related issues

File compare

  • BugFix: Replace text issue (#2279)

Options dialog

  • Add a “Defaults” button to the “Options (Editor > General)” dialog. (PR #2283)
  • Adjust position of “Defaults” button in “Options > Compare > Table”. (PR #2295)


  • BugFix: CompareMSExcelFiles.sct: Fixed the issue where, when the 'Extract workbook data to multiple files' option was enabled, all sheets of .xlsx files containing more than 10 sheets were not compared. (This bug was introduced in version 2.16.39 beta.)
  • BugFix: insert datetime.sct: Fixed an issue where it didn't work properly depending on the locale. (This bug was introduced in version 2.16.39 beta.)
  • BugFix: Fixed an issue where a “Catastrophic failure” message box might have appeared when reloading a plugin while the Select Files or Folders window was displayed.
  • Allow plugin pipeline aliases or simple plugins to be registered in the GUI (PR #2257)


  • BugFix: French encoding problem on the end of installation (last dialog box) (#2272)


What Is New in 2.16.39 Beta


  • BugFix: Fixed an issue where typing only a single character in the header bar could cause a crash.

File compare

  • BugFix: Fixed possible crash
  • BugFix: Creation of .bak files fails when the original filename starts with a dot (#2217)
  • Update Java syntax highlighting keyword list. (PR #2215)
  • Replace “Match similar lines” with “Align similar lines” (PR #2230)
  • Make it possible to select the behavior when copying to another pane with “Copy to Right” etc. while text is selected. (PR #2224)
  • Make it possible to transform the text copied with “Copy Right/Left” using a plugin. (PR #2238)
  • Update PHP syntax highlighting keyword list. (PR #2265)

Web page compare

  • BugFix: Make event sync settings persistent (#2248)

Select Files or Folders dialog

  • BugFix: Fixed the issue when the compare button could not be clicked when specifying an archive file and a regular file.


  • BugFix: Fixed an issue where the widths of the left and right panes in HTML reports are not equal.
  • BugFix: Fixed an issue where the caption set in the header bar was not being applied to the HTML report.


  • BugFix: Fixed crash when error occurs in Unpacker plugin
  • Replace the source code written in VBScript with JScript (PR #2098)
  • Add the ability to replace using patterns from Substitution Filters to the Replace plugin. (PR #2252)
  • Added sanity check for regular expressions in PrediffLineFilter plugin.


  • BugFix: If the /noicons option was specified in the previous installation, a message box asking you to delete the previous start menu will be displayed in the next installation. (#2206)
  • Move custom messages into a separate iss file (#2247)

Archive support

  • BugFix: 7zip encrypted archives with encrypted file names (#2225)


  • Update codeql-analysis.yml – Version v2 to v3 (PR #2196)


Known issues

  • Suggestion to make the result of image comparison more reliable (#1391)
  • Crashes when comparing large files (#325)
  • Very slow to compare significantly different directories (#322)
  • Vertical scroll bar breaks after pasting text (#296)

Version number 2.16.40
Release status Final
Operating systems Windows 7, Windows Server 2008, Windows Server 2012, Windows 8, Windows 10, Windows Server 2016, Windows Server 2019, Windows 11
Website WinMerge
License type GPL
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