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Release history

Plagiarism Detector - What's New

Every release of Plagiarism Detector, newest first. The build at the top is the one you download today.

Current version
Build 3046
Released October 4, 2026
Download Plagiarism Detector
New new feature Improved better or faster Fixed bug fix
  1. 2026

  2. Build 3046

    Current
    • ImprovedStability and performance improvements.

  3. Build 3045

    • ImprovedStability and performance improvements.

  4. Build 3044

    • ImprovedStability and performance improvements.

  5. Build 3043

    • FixedFixed uninstalling PDAS on 64-bit Windows.

  6. Build 3042

    • ImprovedStability and performance improvements.

  7. Build 3041

    • ImprovedPDAS can now be uninstalled with Plagiarism Detector's digitally signed remover.

  8. Build 3040

    • ImprovedPDAS can now be installed with Plagiarism Detector's digitally signed setup.

  9. Build 3039

    • ImprovedPDAS download links in the app now open the new PDAS download page.
    • FixedChecks against your PDAS database now find documents that are identical to stored ones.

  10. Build 3038

    • ImprovedRemoving a per-user installation no longer asks for administrator rights.

  11. Build 3037

    • FixedOnce the backup search service declines a document, its remaining searches go straight to a free search engine instead of waiting on it.

  12. Build 3036

    • NewNew Settings option to turn off searches in the Scientific Articles database.
    • ImprovedSettings now asks before closing with unsaved changes and fits on small screens, with the Save button always visible.
    • ImprovedMore reliable setup: no more failures on locked files, no hangs on errors, and no clashes when setup is started twice.
    • FixedFixed web sources left undownloaded, or attached to the wrong source, so reports are more complete and accurate.
    • FixedWhen the backup search service is unavailable, the check now continues with a free search engine.
    • FixedMatches found in your PDAS database are now credited to the right source.
    • FixedFixed an out-of-memory error on very short texts, and a check failure when the debug folder could not be created.
    • FixedFixed time stamps in the reports-list CSV export and in report folder names.

  13. Build 3005

    • NewThe "Check for plagiarism" Explorer context menu is back, with the product logo and in your interface language.
    • NewWeb sources that block direct downloads can now be retrieved through our servers, with options in Settings to control this.
    • ImprovedQuotations in „…“ style are now detected whatever the document format.
    • ImprovedTwo-document and folder checks are faster: each local file is now compared once instead of twice.
    • FixedSetup now handles read-only or briefly locked install folders, starts the app as the signed-in user, and keeps all-users mode on upgrade.
    • FixedFixed a connection error on Windows 7.
    • FixedTemporary copies of locked documents are cleaned up safely; your original files are never touched.
    • FixedThe support link in notifications opens correctly, and an unused Settings option was removed.

  14. Build 2997

    • NewNew setting to choose how web sources are downloaded.
    • ImprovedMore reliable downloading of web sources, with the built-in browser as an automatic fallback.
    • ImprovedLicense and server errors now say what actually failed; a license refusal stops the check, other failures let you Retry or Cancel.
    • ImprovedFaster report uploads.
    • FixedFixed a check that could stall indefinitely after a cache reset.
    • FixedFixed a "currently busy" error that could restart the web search of a running check.
    • FixedA required update now correctly blocks the outdated version from opening.

  15. Build 2992

    • FixedThe splash screen is no longer cropped on displays at 100% scaling.

  16. Build 2991

    • Fixed"Remaining checks" is no longer shown for individual licenses.
    • FixedOpening a second report no longer turns into a comparison of the two reports' raw code.

  17. Build 2990

    • NewGenerating a PDF report and sharing a report online now show a progress dialog you can cancel.
    • NewNew setting for how long the built-in browser may spend fetching web sources.
    • ImprovedSetup now checks for .NET Framework 4.6.2 up front and tells you where to get it.
    • FixedPlagiarism Detector starts again on Windows 7, 8 and 8.1.
    • FixedIncomplete downloads are no longer analyzed as if they were the whole document.
    • FixedFixed Google results whose links could not be opened.
    • FixedFixed an out-of-memory error that could produce a 0% report in Rewrite checks.
    • FixedIcons now display with proper transparency.

  18. Build 2986

    • ImprovedIf the report server fails for one document, only that document is affected; the application and the rest of the queue keep running.
    • ImprovedLocal caches now stay within a size budget instead of growing without limit.
    • ImprovedMore accurate source listings: each source is credited only with the text it matched, and sources that add nothing are left out.
    • FixedA running check can no longer be restarted from Quick Start.
    • FixedWindows now fit on 1366x768 screens at high display scaling.
    • FixedFixed matches that could shrink to a single character in the report.

  19. Build 2977

    • FixedFixed an error that interrupted checks just before the analysis stage.
    • FixedSearch and page caches are now kept between sessions again, making repeat checks faster.

  20. Build 2975

    • ImprovedRebuilt Section Difference Analyzer: word-by-word comparison that stays accurate on re-wrapped text and no longer freezes on long matches.
    • ImprovedThe resource timeout setting now reliably limits how long any single web source can take.
    • ImprovedLarge reports upload faster, and upload errors now show the server's actual reply.
    • FixedProxy settings are now applied to every part of the application that connects to the internet.
    • FixedFixed lost results from Bing and Yahoo searches.
    • FixedThe settings wizard no longer overwrites the "Min Plagiarism section length" value.
    • FixedFixed reports failing to save when the folder path is very long.

  21. Build 2971

    • NewReports now show Plagiarism Detector's own plagiarism percentage beside the similarity scores, with a note explaining the difference.
    • ImprovedWhen search engines block requests mid-check, the search now continues through a backup search service.
    • ImprovedMore complete Google search results.
    • FixedFixed checks that could run forever on documents with no web sources, and cached searches that could hide matches in later checks.
    • FixedWeb pages opened by the built-in browser now go through the proxy set in the application settings.
    • FixedFixed new installations failing during setup.

  22. Build 2965

    • NewNew Detailed Similarity section in reports, with share of text matched in long fragments and share quoted or cited.
    • ImprovedGoogle search works reliably again, respects your proxy settings and returns plain web results.
    • ImprovedFaster, more reliable download of web sources, including sites behind bot protection.
    • ImprovedReports now show the real error code for sources that could not be downloaded.
    • FixedFixed DuckDuckGo searches returning no results.
    • FixedFixed the web crawler's domain filter and background processes left running after exit.

  23. Build 2961

    • NewAI detection now supports Ukrainian, Spanish and French, in addition to English and Romanian.
    • ImprovedBetter access to protected websites when downloading sources.
    • FixedFixed an Internet check that could hang when the search returned few results.
    • FixedFixed local folder checks.
    • FixedFixed the "Making report" progress bar getting stuck and several errors at the end of a check.
    • FixedFixed the settings window, the report selector and the check wizard.

  24. Build 2958

    • NewNew progress indicator for AI detection.
    • FixedFixed the check wizard layout, including on Windows 11.
    • FixedFixed search engine availability checks, the splash screen and settings.

  25. Build 2954

    • NewNew AI-generated text detection engine, with AI-written passages marked in the report.
    • NewTurn AI detection on or off directly in the check wizard.
    • ImprovedAI detection messages are now translated into all 14 interface languages.
    • ImprovedRedesigned splash screen with full high-DPI support.
    • FixedThe app no longer closes silently when the registration server returns an unexpected reply.

  26. Build 2945

    • ImprovedThe portable version now updates itself.
    • FixedFixed the remaining "elevation required" errors.

  27. Build 2942

    • FixedFixed an "elevation required" error at startup.

  28. Build 2941

    • ImprovedMore reliable Google searches through the built-in browser component.
  29. 2025

  30. Build 2939

    • FixedFixed Bing and Google web searches.

  31. Build 2937

    • NewRedesigned side-by-side comparison viewer with section navigation and jumps to exact matches.
    • ImprovedNew, faster text comparison engine with more accurate similarity percentages.
    • ImprovedSharper display on high-DPI screens and a more responsive interface during checks.
    • ImprovedFaster repeated checks with a new cache.
    • FixedFixed offline corpus checks for Slovak documents.
    • FixedFixed a freeze during checks and the position of notification pop-ups.

  32. Build 2867

    • NewSettings now let you clear each cache and delete all caches automatically when the app exits.
    • ImprovedCaches are trimmed automatically to save disk space.
    • FixedFixed reading of files that are locked by another program.
    • FixedSeveral bug fixes in automatic document loading and the uninstaller.

  33. Build 2848

    • ImprovedMore reliable detection of the WebView2 component and of your Windows version.
    • FixedFixed file uploads through a proxy that requires authentication.
    • FixedFixed an error when WebView2 is not installed.

  34. Build 2828

    • ImprovedMore reliable Google searches using the built-in Microsoft Edge WebView2 browser component.

  35. Build 2808

    • NewPlagiarism Detector add-ins for Microsoft Word and PowerPoint.
    • NewNew progress bars for each stage of a check and for report generation.
    • ImprovedFaster repeated checks thanks to caching of downloaded sources.
    • FixedFixed the Quit button position on high-resolution screens.
    • FixedSeveral fixes for the portable version and setup.
  36. 2024

  37. Build 2762

    • FixedFixed the same web source being processed twice during a check.

  38. Build 2759

    • ImprovedMore accurate similarity percentages and source counts in reports.
    • ImprovedBetter proxy support and network timeouts.
    • FixedFixed charts in reports exported to PDF.
    • FixedFixed checks that could stall or finish too early, and temporary files that were not deleted.
    • FixedFixed quotation handling and offline-mode checks.

  39. Build 2695

    • FixedFixed checks failing when a document is open in another program.
    • FixedFixed failed downloads of some web sources.
    • FixedFixed file uploads in Quick Check.

  40. Build 2674

    • NewExclude text from checks with custom regular-expression rules.
    • NewOriginality reports are now available in offline mode.
    • ImprovedBetter detection of quotations and the overall percentage shown on the report's top chart.

  41. Build 2644

    • FixedLinks and files now open correctly in your web browser.
    • FixedFixed handling of accented and diacritic characters in server-side checks.

  42. Build 2639

    • ImprovedStability and performance improvements.

  43. Build 2636

    • ImprovedAI detection now ignores non-English text it cannot assess reliably.
    • ImprovedNew setup with better antivirus compatibility, plus several setup fixes.

  44. Build 2616

    • ImprovedStability and performance improvements.

  45. Build 2615

    • FixedFixed false antivirus warnings during document checks.

  46. Build 2612

    • ImprovedImproved compatibility when downloading web sources.

  47. Build 2610

    • NewAI-generated text detection is now part of every check, with the results shown in the report.
    • ImprovedAI detection results are cached, so repeated checks of the same document are faster.

  48. Build 2603

    • ImprovedMore accurate AI-generated text detection with a new scoring system and progress display.
    • FixedFixed broken report charts on systems that use a comma as the decimal separator.
    • FixedFixed export of reports to PDF.
    • FixedReport list export to CSV and Excel now keeps all languages and characters intact.

  49. Build 2524

    • NewNew Fast Wizard for starting a check in fewer steps.
    • NewSetup can now install for the current user only, without administrator rights, or for all users.
    • ImprovedYour license is carried over automatically when you reinstall or upgrade.
    • ImprovedRedesigned main window, setup and uninstaller.
    • FixedFixed the portable version's license handling and its dependence on a fixed drive letter.
    • FixedFixed a crash on some PDF files and an unexpected restart after activation.

Running PDAS for your own document database? See what's new in PDAS.

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