v2.16.55 (2026.04)
#3305
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WinMerge 2.16.55 Beta Release Notes
April 2026
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 2.16.55 Beta
General
Fix incorrect GetAsyncKeyState usage for modifier key detection (PR Fix incorrect GetAsyncKeyState usage for modifier key detection #3257)
Update POCO C++ Libraries to 1.15.1 (PR Update POCO C++ Libraries to 1.15.1 #3292)
File compare
BugFix: Fix keyboard input issue after Alt+mouse operations (PR Fix keyboard input issue after Alt+mouse operations #3254)
BugFix: Register self-compare in MRU and refactor command line parameter
buil… (PR Register self-compare in MRU and refactor command line parameter buil… #3266)
Refactor save confirmation logic using SaveClosingDlg::ShowAndSave
(PR Refactor save confirmation logic using SaveClosingDlg::ShowAndSave #3256)
Enable IME text reconversion in editor view (PR Enable IME text reconversion in editor view #3214)
Image compare
BugFix: Fix crash caused by OnClose being called twice in image compare
window (PR Fix crash caused by OnClose being called twice in image compare window #3255)
Speedup image comparision slider during WipeEffect (PR winimerge/Update Boost's checking for new VS2017 Update 3 #33)
Folder compare
BugFix: Fix an issue where skipped items were not properly filtered during
folder/file comparison. (PR Fix an issue where skipped items were not properly filtered during folder/file comparison. #3267)
BugFix: Fix potential hang in DiffWorker shutdown (PR Fix potential hang in DiffWorker shutdown #3300)
Extend “Merge renamed items” option to support moved items (PR Extend “Merge renamed items” option to support moved items #3181)
Refactor compare engines to use DiffContext (PR Refactor compare engines to use DiffContext #3197)
Refactor compare engines to write results into DIFFITEM and add
FullQuickCompare (PR Refactor compare engines to write results into DIFFITEM and add FullQuickCompare #3201)
Add e:/e!: filter prefixes for files and directories (PR Add e:/e!: filter prefixes for files and directories #3205)
Add replaceWithList and regexReplaceWithList filter functions (PR Add replaceWithList and regexReplaceWithList filter functions #3213)
Add Replace Lists menu for Rename/Move detection keys (PR Add Replace Lists menu for Rename/Move detection keys #3215)
Make replace and replaceWithList case-insensitive (PR Make replace and replaceWithList case-insensitive #3222)
Add directives (@cs, @ci, @name) to filter expressions (PR Add directives (@cs, @ci, @name) to filter expressions #3253)
Add "Filter by This Column" to folder view header context menu (PR Add "Filter by This Column" to folder view header context menu #3268)
Add display filter attributes and UI for filtering by comparison results
(PR Add display filter attributes and UI for filtering by comparison results #3284)
Add ability to hide empty folders in tree mode (PR Add ability to hide empty folders in tree mode #3293)
Add Unpacker and Prediffer fields to file filter expressions (PR Add Unpacker and Prediffer fields to file filter expressions #3295)
Enable dynamic increase/decrease of compare threads (PR Enable dynamic increase/decrease of compare threads #3304)
Plugins
Add PrettifyPO and ValidatePO plugins for .po/.pot files (PR Add PrettifyPO and ValidatePO plugins for .po/.pot files #3190)
Feature request: In CompareMSExcelFiles do not append a sheet order number
to individual tsv, txt or html files (Feature request: In CompareMSExcelFiles do not append a sheet order number to individual tsv, txt or html files #3212)
Add CFR Java decompiler plugin for .class file comparison (PR Add CFR Java decompiler plugin for .class file comparison #3242,Add SHA256 checksum verification for CFR JAR download #3243)
Translations
Documentation
Added: Community standard files (like issue templates, pr template).
(PR Added: Community standard files (like issue templates, pr template). #3225)
Add context IDs to PO files & strip comments for releases (PR Add context IDs to PO files & strip comments for releases #3296)
Known issues
What's Changed
New Contributors
Full Changelog: v2.16.54...v2.16.55
This discussion was created from the release v2.16.55 (2026.04).
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