# WinMerge 2.16.51 Beta Release Notes

- About This Release
- What Is New in 2.16.51 beta?
- Known issues

October 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 2.16.51 Beta

### General

- BugFix: The document does not scroll with the mouse if the documents are identical. Or the text input cursor jumps to unequal lines. (#2939)

### Appearance

- Initial dark mode support via darkmodelib (PR #2834,#2885)
- Improved header bar to reduce flicker

### File compare

- Add option to ignore line breaks (treat as spaces) (refs #373) (PR #2945)

### Folder compare

- Fixed an issue where adding exclusions via [Add Exclude File] -> [Editor Backup Files] incorrectly excluded most files.

### Filters dialog

- Allow resizing of filters window using MFC Dynamic Layout (#509) (PR #2907)

### Options dialog

- Allow saving modified colors as new scheme (#1180) (PR #2908)

### Translations

- Translation updates:

  - Brazilian (#2886,#2910,#2951)
  - Chinese Simplified (PR #2889,#2916,#2952)
  - Corsican (PR #2915)
  - French (PR #2887,#2938,#2969)
  - Hungarian (PR #2909,#2948)
  - Italian (PR #2892,#2911,#2956)
  - Japanese
  - Korean (PR #2913,#2934,#2950)
  - Lithuanian (PR #2912,#2936,#2953)
  - Portuguese (PR #2928)
  - Polish (PR #2929,#2930,#2931)
  - Russian (PR #2890,#2919,#2920,#2933,#2944,#2949)
  - Spanish (PR #2961)
  - Swedish
  - Turkish (PR #2906,#2914,#2957)
  - Ukrainian (PR #2932,#2937,#2954)

### Internals

- Refactor/use bindoption (PR #2955)

## 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)