WinMerge 2.16.49 Beta Release Notes

• About This Release
• What Is New in 2.16.49 beta?
• Known issues

July 2025

About This Release

This is a WinMerge beta release which is meant for preview the current state of
WinMerge development. This release is not recommended for the production.

Please submit bug reports to our bug-tracker.

What Is New in 2.16.49 Beta

General

• [Enhancement] Tab Switching and Tab Bar Scrolling with Mouse Wheel (PR #2821)

Appearance

• Use themed size grip, use toolbar's tooltips instead of controls bar's
  (PR #2769)

File compare

• BugFix: Fixed crash when copying multiple selected diff hunks
• Syntax parser for Pascal should be extended to support compiler directives
  (#2814)
• [Enhancement] Enable/disable automatic navigation to a line when clicking on
  the Location Panel (PR #2827)

Folder compare

• BugFix: WinMerge shows the timestamp of the non-existent file (#2764)
• BugFix: Manual Refresh of a single folder undoes the comparison for most
  other folders randomly (#2792)
• Add the feature to compare multiple files in one action in the folder compare
  window requested in #324. (PR #2825)
• Improve filter system: expression support and UI enhancements (PR #2802)

Options dialog

• BugFix: [Bug Fix] Enable/disable 'Switch to ...' options in Compare > Folder
  page (PR #2819)

Command line

• BugFix: Fixed failure to compare files with relative paths when /s option
  is used from a different current directory than the running WinMerge process

Archive support

• Update 7-Zip to 25.00

Installer

• Installer - Windows "Programs and Features" name (#2798)

Translations

• Translation updates:
  • Brazilian (PR #2829)
  • Bulgarian (PR #2763)
  • Chinese Simplified (PR #2831)
  • Chinese Traditional (PR #2838)
  • Corsican (PR #2844)
  • French (PR #2754,#2761,#2762)
  • Hungarian (PR #2836)
  • Italian (PR #2832)
  • Japanese
  • Korean (PR #2766,#2845)
  • Lithuanian (PR #2799,#2805,#2826,#2830)
  • Portuguese (PR #2768)
  • Russian (PR #2760,#2840)
  • Swedish
  • Tamil (PR #2812,#2813)
  • Turkish (PR #2782)

Internals

• Fix syntax warning in GetTranslationsStatus.py (PR #2751)

Known issues

• Pressing OK in the Options window while the INI file specified by /inifile is open for comparison in WinMerge may corrupt the file. (#2685)
• 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 scrollbar breaks after pasting text (#296)

What's Changed

• Add the feature to open multiple files in the folder compare window requested in #1423. by @tjmprm77 in #2749
• Fix syntax warning in GetTranslationsStatus.py by @gerundt in #2751
• Update French.po by @slolo2000 in #2754
• Update Russian.po by @Timon34 in #2760
• Update French.po by @slolo2000 in #2761
• Update French.po by @slolo2000 in #2762
• Update Bulgarian by @StoyanDimitrov in #2763
• Update Korean.po by @VenusGirl in #2766
• Update Portuguese.po by @hugok79 in #2768
• Use themed size grip, use toolbar's tooltips instead of controls bar's by @ozone10 in #2769
• Turkish translation support by @bilimiyorum in #2782
• Update of Lithuanian translation by @Tichij in #2799
• Update of Lithuanian translation by @Tichij in #2805
• Tamil translations reviewed and updated few messages by @TamilNeram in #2812
• Fixed few more Tamil translation messages by @TamilNeram in #2813
• [Bug Fix] Enable/disable 'Switch to ...' options in Compare > Folder page by @anthonyleestark in #2819
• [Enhancement] Tab Switching and Tab Bar Scrolling with Mouse Wheel by @anthonyleestark in #2821
• Add the feature to compare multiple files in one action in the folder compare window requested in #324. by @tjmprm77 in #2825
• Update of Lithuanian translation by @Tichij in #2826
• [Enhancement] Enable/disable automatic navigation to a line when clicking on the Location Panel by @anthonyleestark in #2827
• Update Brazilian.po by @Marcellomco in #2829
• Update of Lithuanian translation by @Tichij in #2830
• update zh-cn translation by @yingang in #2831
• Italian language update by @bovirus in #2832
• Update Hungarian.po by @efi99 in #2836
• [Translations] update ChineseTraditional.po by @abc0922001 in #2838
• Update Russian.po by @Timon34 in #2840
• Update Corsican translation for 2.16.49 by @Patriccollu in #2844
• Update Korean.po by @VenusGirl in #2845
• Improve filter system: expression support and UI enhancements by @sdottaka in #2802

New Contributors

• @ozone10 made their first contribution in #2769
• @bilimiyorum made their first contribution in #2782
• @anthonyleestark made their first contribution in #2819

Full Changelog: v2.16.48...v2.16.49