# QuickLook changelog > Press space to preview a file, on Windows. - Vendor: QL-Win - Category: Productivity - Platforms: Windows - Official site: https://github.com/QL-Win/QuickLook - Tracked by: What's New (https://whatsnew.fyi/product/quicklook) - Harvested from: GitHub (QL-Win/QuickLook) - Entries below: 9 (newest first) What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog. ## Releases ### 4.5.0 - Date: 2026-04-14 - Version: 4.5.0 - Original notes: https://github.com/QL-Win/QuickLook/releases/tag/4.5.0 - Permalink: https://whatsnew.fyi/product/quicklook/releases/4.5.0 - Labels: Platforms: Windows - **changed** — Update LAVFilters to 0.81.0 - **changed** — Improve LRC handling by merging duplicate timestamps - **added** — Add support for the WindowBackdrop option (Auto/None/Mica/Acrylic/Tabbed/Acrylic10/Acrylic11) - **added** — Add PKCS7 extensions to supported file types (.p7s and .pkcs7) - **added** — Add support for Fortran95, GDScript, Diff, Razor, ActionScript, Assembly, Ada, AutoHotkey, Rhai, C++, Python, PlantUML, Zig, Moji, GraphQL, Mermaid, KQL, PromQL, JSON Lines, ANTLR, Boo, Ceylon, ChucK, Clojure, Cocoa, CoffeeScript, and Cool syntax highlighting including dark mode theme - **added** — Add support for Chromium .pak viewer and file extraction - **added** — Add .axml extension to XML syntax highlighting - **added** — Add .cursorignore extension to GitIgnore syntax - **added** — Add support for Python .whl and .egg archives - **added** — Add .psv parsing support in CsvViewer - **added** — Add Mermaid support and .mmd detection - **added** — Add plugin icon registration and include QLPlugin.ico - **added** — Add DICOM image support to ImageViewer plugin - **added** — Add Romanian translation - **added** — Add F11 full screen toggle support - **fixed** — Fix markdown not supporting absolute resource paths - **fixed** — Fix option UseTransparency=False not taking effect in Windows 10 - **fixed** — Fix loop toggle resuming paused video playback - **fixed** — Fix unhandled exception with XLSX and CSV files in OfficeViewer resize - **fixed** — Fix command line relative path resolution - **fixed** — Fix taskbar icon intermittently missing after Explorer restart - **fixed** — Fix assimp.dll not found for win-x64 ##### What's Changed - Update LAVFilters to `0.81.0` [#1362](https://github.com/QL-Win/QuickLook/issues/1362) [#1855](https://github.com/QL-Win/QuickLook/issues/1855) [#1863](https://github.com/QL-Win/QuickLook/issues/1863) > A possible side effect is that users with older GPUs or without the latest VC++ Redistributable installed may experience video playback failures. > > Nevertheless, QuickLook has chosen to continue with an up-to-date update strategy. > > If you encounter any issues, you can refer to [#1362](https://github.com/QL-Win/QuickLook/issues/1362) and consider downgrading your LAVFilters version. - Improve LRC handling by merging duplicate timestamps [#1858](https://github.com/QL-Win/QuickLook/issues/1858) - Improve the translation of Simplified Chinese by [@stxttkx](https://github.com/stxttkx) - Add support for the `WindowBackdrop` option (Auto/None/Mica/Acrylic/Tabbed/Acrylic10/Acrylic11) - Add PKCS7 extensions to supported file types (`.p7s` and `.pkcs7`) - Add support Fortran95 (`.f90`, `.f95`, `.f03`), GDScript (`.gd`), Diff (`.patch`, `.rej`), Razor (`.cshtml`, `.razor`), ActionScript (`.as`, `.mx`), Assembly (`.asm`), Ada (`.ada`, `.ads`, `.adb`), AutoHotkey (`.ahk`), Rhai (`.rhai`), C++ ( `.cu`, `.cuh`, `.hip`), Python (`.pyx`), PlantUML (`.puml`, `.plantuml`, `.pu`, `.uml`, `.iuml`, `.wsd`), Zig (`.zig`), Moji (`.moji`), GraphQL (`.graphql`, `.gql`, `.gqls`), Mermaid (`.mmd`, `.mermaid`), KQL (`.kql`), PromQL (`.promql`), JSON Lines (`.jsonl`), ANTLR, Boo, Ceylon, ChucK, Clojure, Cocoa, CoffeeScript, Cool, and others syntax highlighting, including the dark mode theme - Add support Chromium `.pak` viewer and file extraction - Add `.axml` extension to XML syntax highlighting - Add `.cursorignore` extension to GitIgnore syntax - Add support for Python `.whl` and `.egg` archives - Add support `.psv` parsing in CsvViewer - Add Mermaid (`.mermaid`) support and `.mmd` detection [#1893](https://github.com/QL-Win/QuickLook/issues/1893) - Add plugin icon registration and include `QLPlugin.ico` designed by [@Shomnipotence](https://github.com/Shomnipotence) - Add DICOM image support to ImageViewer plugin [#1866](https://github.com/QL-Win/QuickLook/issues/1866) `This is not a long-lasting built-in plugin` - Add Romanian translation by [@Laszlo19](https://github.com/Laszlo19) - Add F11 full screen toggle support [#253](https://github.com/QL-Win/QuickLook/issues/253) - Fix markdown not supporting absolute resource paths - Fix option `False` not taking effect in Windows 10 [#1542](https://github.com/QL-Win/QuickLook/issues/1542) - Fix loop toggle resuming paused video playback [#1852](https://github.com/QL-Win/QuickLook/issues/1852) - Fix unhandled Exception with XLSX and CSV files in OfficeViewer resize with `RPC_E_CANTCALLOUT_ININPUTSYNCCALL` [#1854](https://github.com/QL-Win/QuickLook/issues/1854) - Fix command line relative path resolution [#1857](https://github.com/QL-Win/QuickLook/issues/1857) - Fix taskbar icon intermittently missing after Explorer restart [#1864](https://github.com/QL-Win/QuickLook/issues/1864) - Fix `{Desktop composition is disabled}` exceptions in `GetMonitorColorProfileFromWindow` [#4](https://github.com/QL-Win/QuickLook.Common/pull/4) - Fix `assimp.dll` not found for win-x64 [#1741](https://github.com/QL-Win/QuickLook/issues/1741) ##### New Contributors * @adnan-bhaldar made their first contribution in https://github.com/QL-Win/QuickLook/pull/1842 * @Laszlo19 made their first contribution in https://github.com/QL-Win/QuickLook/pull/1867 * @ruyut made their first contribution in https://github.com/QL-Win/QuickLook/pull/1871 * @stxttkx made their first contribution in https://github.com/QL-Win/QuickLook/pull/1882 * @Shomnipotence made their first contribution in https://github.com/QL-Win/QuickLook/pull/1887 **Full Changelog**: https://github.com/QL-Win/QuickLook/compare/4.4.0...4.5.0 ### 4.4.0 - Date: 2026-01-08 - Version: 4.4.0 - Original notes: https://github.com/QL-Win/QuickLook/releases/tag/4.4.0 - Permalink: https://whatsnew.fyi/product/quicklook/releases/4.4.0 - Labels: Platforms: Windows - **added** — Support for `.cnf` files in INI syntax highlighting - **added** — Support for `.ddeb` Debian debug symbol packages - **added** — Reload option in the More context menu - **added** — Support for embedded lyrics in music files - **added** — Certificate viewer plugin supporting `.p12`, `.pfx`, `.cer`, `.crt`, `.pem`, `.mobileprovision`, and `.certSigningRequest` extensions - **added** — Support for Compound File Binary formats (`.cfb` and `.eif`) - **added** — Restart button after plugin installation - **changed** — Improve XML version attribute detection in XMLDetector to support formats like `` - **changed** — Improve YAML highlighting and support `.clang-format` files - **fixed** — Crash that could occur when shutting down or restarting Windows - **fixed** — JSON detection with UTF-8 BOM present - **fixed** — Tags not displayed due to empty cover art What's Changed --- - Add support for `.cnf` files to INI syntax highlighting - Add support for `.ddeb` Debian debug symbol packages - Add a **Reload** option to the **More** context menu [#1839](https://github.com/QL-Win/QuickLook/issues/1839) - Add support for embedded lyrics in music file [#1847](https://github.com/QL-Win/QuickLook/issues/1847) - Add a certificate viewer plugin to support extensions `.p12`, `.pfx`, `.cer`, `.crt`, `.pem`, `.mobileprovision` and `.certSigningRequest` - Add support for Compound File Binary formats (`.cfb` and `.eif` is now supported) - Add a restart button after plugin installation [#1823](https://github.com/QL-Win/QuickLook/issues/1823) - Improve XML version attribute detection in `XMLDetector` (e.g. `` is now supported) - Improve YAML highlighting and support `.clang-format` - Fix a crash that could occur when shutting down or restarting Windows [#1782](https://github.com/QL-Win/QuickLook/issues/1782) - Fix JSON detection with UTF-8 BOM present - Fix tags not displayed due to empty cover art [#1845](https://github.com/QL-Win/QuickLook/issues/1845) **Full Changelog**: https://github.com/QL-Win/QuickLook/compare/4.3.0...4.4.0 ### 4.3.0 - Date: 2025-12-10 - Version: 4.3.0 - Original notes: https://github.com/QL-Win/QuickLook/releases/tag/4.3.0 - Permalink: https://whatsnew.fyi/product/quicklook/releases/4.3.0 - Labels: Platforms: Windows - **added** — Add Svelte syntax highlighting support - **added** — Add ShowInTaskbar setting to display window in taskbar - **added** — Add option to disable automatic update check at startup - **changed** — Update PowerShell syntax colors in dark theme - **changed** — Improve TextViewerPanel UI and usability - **fixed** — Fix DOpus crash when QuickLook runs with different privilege level - **fixed** — Fix volume control exceeding limits during mouse wheel scroll - **fixed** — Fix error in RTF file originating from version 4.2.1 ##### What's Changed * Add Svelte syntax highlighting support * Add ShowInTaskbar setting to display window in taskbar https://github.com/QL-Win/QuickLook/issues/1789 * Add option to disable automatic update check at startup https://github.com/QL-Win/QuickLook/issues/1801 * Update PowerShell syntax colors in dark theme * Improve TextViewerPanel UI and usability * Fix DOpus crash when QuickLook runs with different privilege level https://github.com/QL-Win/QuickLook/issues/1781 * Fix volume control exceeding limits during mouse wheel scroll https://github.com/QL-Win/QuickLook/issues/1813 * Fix error in RTF file originating from version 4.2.1 https://github.com/QL-Win/QuickLook/issues/1826 **Full Changelog**: https://github.com/QL-Win/QuickLook/compare/4.2.2...4.3.0 ### 4.2.2 - Date: 2025-10-16 - Version: 4.2.2 - Original notes: https://github.com/QL-Win/QuickLook/releases/tag/4.2.2 - Permalink: https://whatsnew.fyi/product/quicklook/releases/4.2.2 - Labels: Platforms: Windows This is a patch version to fix the version display issue from `4.2.1`. - Fix version display issue [#1776](https://github.com/QL-Win/QuickLook/issues/1776) **Full Changelog**: https://github.com/QL-Win/QuickLook/compare/4.2.1...4.2.2 ### 4.2.1 - Date: 2025-10-15 - Version: 4.2.1 - Original notes: https://github.com/QL-Win/QuickLook/releases/tag/4.2.1 - Permalink: https://whatsnew.fyi/product/quicklook/releases/4.2.1 - Labels: Platforms: Windows ##### What's Changed - Fix theme error in MediaInfoViewer plugin [#1775](https://github.com/QL-Win/QuickLook/issues/1775) - Fix theme error in any theme-changable plugin [#1507](https://github.com/QL-Win/QuickLook/issues/1507) **Full Changelog**: https://github.com/QL-Win/QuickLook/compare/4.2.0...4.2.1 --- P.S. Version 4.2.1 shows as 4.2.0 #1776 is just a display issue and can be ignored. ### 4.2.0 - Date: 2025-10-13 - Version: 4.2.0 - Original notes: https://github.com/QL-Win/QuickLook/releases/tag/4.2.0 - Permalink: https://whatsnew.fyi/product/quicklook/releases/4.2.0 - Labels: Platforms: Windows ##### What's Changed - Add built-in MediaInfoViewer plugin and support it in more menu - Add 'Copy as path' option to more menu - Add cross-plugin 'Reopen as' menu for SVG and HTML [#1690](https://github.com/QL-Win/QuickLook/issues/1690) - Support Point Cloud Data (.pcd) for 3D spatial (Only PCD files with the PointXYZ format are supported, while Color and Intensity formats are not.) - Support Mermaid diagram rendering in MarkdownViewer [#1730](https://github.com/QL-Win/QuickLook/issues/1730) - Support .pdn in ThumbnailViewer [#1708](https://github.com/QL-Win/QuickLook/issues/1708) - Improve CLI performance [#1706](https://github.com/QL-Win/QuickLook/issues/1706) [#1731](https://github.com/QL-Win/QuickLook/issues/1731) - Set default background to transparent for SVG panel - Improve UI/UX of font loading - Add diff file syntax highlighting - Add Swedish translation [#1755](https://github.com/QL-Win/QuickLook/issues/1755) - Add .slnx extension to XML syntax highlighting - Add support for Telegram Sticker (.tgs) files [#1762](https://github.com/QL-Win/QuickLook/issues/1762) - Add .snupkg and .asar support to archive viewer - Add .krc file support to TextViewer - Add UseNativeProvider option [#1726](https://github.com/QL-Win/QuickLook/issues/1726) - Fix image .jxr error reading from UseColorProfile - Fix issue where font file stays locked [#77](https://github.com/QL-Win/QuickLook/issues/77) - Fix font file unicode name is not supported - Fix extracting cover art will not cause the title to be lost [#1759](https://github.com/QL-Win/QuickLook/issues/1759) - Fix HelixViewer default height being too large - Fix long path handling issue in HtmlViewer [#1643](https://github.com/QL-Win/QuickLook/issues/1643) - Update Batch syntax highlighting colors - Refactor tray icon to use TrayIconHost - Refactor to make exe-installer no forked relaunching - Remove unimportant UnobservedTaskException [#1691](https://github.com/QL-Win/QuickLook/issues/1691) - Remove configuration `ModernMessageBox` ##### New Contributors * @VenusGirl made their first contribution in https://github.com/QL-Win/QuickLook/pull/1710 * @Copilot made their first contribution in https://github.com/QL-Win/QuickLook/pull/1713 * @dependabot[bot] made their first contribution in https://github.com/QL-Win/QuickLook/pull/1714 * @samueljoh made their first contribution in https://github.com/QL-Win/QuickLook/pull/1755 **Full Changelog**: https://github.com/QL-Win/QuickLook/compare/4.1.1...4.2.0 ### 4.1.1 - Date: 2025-07-22 - Version: 4.1.1 - Original notes: https://github.com/QL-Win/QuickLook/releases/tag/4.1.1 - Permalink: https://whatsnew.fyi/product/quicklook/releases/4.1.1 - Labels: Platforms: Windows ##### What's Changed - Add built-in ThumbnailViewer plugin [#1662](https://github.com/QL-Win/QuickLook/issues/1662) - Add built-in HelixViewer for 3d models [#1662](https://github.com/QL-Win/QuickLook/issues/1662) - Add FBX model support using AssimpNet [#1479](https://github.com/QL-Win/QuickLook/issues/1479) - Add `SVGA` and `Lottie Files` animation preview support - Add MathJax inline math support to Markdown [#1640](https://github.com/QL-Win/QuickLook/issues/1640) - Add `SubRip Subtitle (.srt) files`, `Protobuf`, `NSIS`, `.gitmodules`, `.dotsettings`, `.gitignore`, `.gitattributes`, `Markdown`, `reStructuredText`, `simple QML syntax`, `.env`, `Configuration (.conf;.config;.cfg)` highlighting [#1002](https://github.com/QL-Win/QuickLook/issues/1002) - Add dark mode highlighting for `PowerShell`, `Registry`, `C`, `C++`, `Java`, `Rust`, `SQL`, `Ruby`, `R`, `PHP`, `Pascal`, `Objective-C`, `Lisp`, `Kotlin`, `Erlang`, `Dart`, `Swift`, `VisualSolution`, `CMake` - Add `MakefileDetector`, `CMakeListsDetector for CMakeLists.txt`, `DockerfileDetector`, `HostsDetector for hosts` for text viewer - Improve QuickLook initialization speed - Optimize JSONDetector with Span - Set RichTextBox background to transparent - Revert Add Sandbox detection from 4.1.0 which will call crash https://github.com/QL-Win/QuickLook/blob/master/CHANGELOG.md **Full Changelog**: https://github.com/QL-Win/QuickLook/compare/4.1.0...4.1.1 ### 4.1.0 - Date: 2025-07-19 - Version: 4.1.0 - Original notes: https://github.com/QL-Win/QuickLook/releases/tag/4.1.0 - Permalink: https://whatsnew.fyi/product/quicklook/releases/4.1.0 - Labels: Pre-release; Platforms: Windows ##### What's Changed * Update existing and add missing German translation by @King3R in https://github.com/QL-Win/QuickLook/pull/1663 * Add Reload + Customizatio by @JSuttHoops in https://github.com/QL-Win/QuickLook/pull/1666 * Full changed: https://github.com/QL-Win/QuickLook/blob/master/CHANGELOG.md ##### New Contributors * @King3R made their first contribution in https://github.com/QL-Win/QuickLook/pull/1663 * @JSuttHoops made their first contribution in https://github.com/QL-Win/QuickLook/pull/1666 **Full Changelog**: https://github.com/QL-Win/QuickLook/compare/4.0.2...4.1.0 ### 4.0.2 - Date: 2025-05-28 - Version: 4.0.2 - Original notes: https://github.com/QL-Win/QuickLook/releases/tag/4.0.2 - Permalink: https://whatsnew.fyi/product/quicklook/releases/4.0.2 - Labels: Platforms: Windows [Major Change] * Support .pcx image [#1638](https://github.com/QL-Win/QuickLook/issues/1638) * Improve PE parsing with extended buffer size * Fix flickering [#1628](https://github.com/QL-Win/QuickLook/issues/1628) * Fix DpiAwareness for PerMonitor [#1626](https://github.com/QL-Win/QuickLook/issues/1626) [Small Change] * Hide PEViewer Title just like InfoPanel * Avoid audio cover null exception in xaml **Full Changelog**: https://github.com/QL-Win/QuickLook/compare/4.0.1...4.0.2 **Differences Between Distributions**: [What's the differences between distributions](https://github.com/QL-Win/QuickLook/wiki/Differences-Between-Distributions) > If you don’t understand or don’t want to know more, please just use the `.msi` installer.