The popular third-party file manager for Windows, simply called Files, shipped version 4.2 in early July 2026 with a pair of features that power users have been requesting for years: a dedicated tree view sidebar and multi-pane support. The update, available now for Windows 10 and Windows 11, also delivers a smarter “Open With” toolbar flyout, refined breadcrumb navigation, and a long list of quality-of-life tweaks that make the app feel more responsive and reliable in daily use.
What’s new in version 4.2
The headline additions are the tree view and split panes. The tree view sits in a collapsible sidebar, giving you a hierarchical, expandable list of folders—much like the old-school Windows Explorer navigation pane but with a modern, touch-friendly interface. You can instantly see your drive structure, expand deep folder nests, and drag files into any node without losing sight of where you are. The split panes feature lets you divide the main window horizontally or vertically, showing two separate folder views at once. Each pane operates independently with its own navigation, view mode, and selection state, so you can, for example, copy files from one pane to another by dragging across the divider.
Beyond the two marquee features, Files 4.2 reworks how you open files with unfamiliar apps. A new “Open With” toolbar flyout appears directly on the toolbar, listing recommended and recently used apps. It replaces the old context-menu-only approach and can be customized to show specific applications—saving precious clicks when you regularly edit text files in three different editors. Breadcrumb navigation gets an upgrade, too: the address bar now shows clickable folder chips that are easier to target with a mouse or finger, and the drop-down menus on each chip give immediate access to sibling and child folders.
Under the hood, the team has squashed dozens of bugs. File operations (copy, move, delete) are faster and more stable, especially when dealing with large folders or network drives. The dark theme has been polished to improve contrast in the details pane, and accessibility fixes ensure better screen reader support and keyboard navigation. A few niche issues—like the occasional blank preview pane for PDFs and incorrect date formatting in certain locales—have been resolved as well.
Why these changes matter for everyday users
If you’re a home user who primarily works with photos, documents, and downloads, the tree view alone might change how you organize files. Instead of clicking through a linear series of folders to find last year’s tax documents, you can expand “Documents > Finances > Tax > 2025” in one glance and drag the files you need directly into an email or another folder visible in the other pane. Split panes eliminate the need to open two separate windows and arrange them side by side manually—a workflow that has barely changed since Windows 95.
For power users and IT professionals, the productivity gains are even clearer. Managing project assets across multiple drives, synchronizing folders between a local machine and a network share, or comparing two directory structures becomes a fluid single-window operation. The “Open With” toolbar flyout is a small but meaningful time-saver: if you regularly switch between Notepad++, VS Code, and hex editors, you can now access all of them from a persistent toolbar button rather than right-clicking, scrolling, and hunting through a potentially long list of applications.
The improvements to breadcrumbs also make navigation less error-prone. When a path is 12 folders deep, trying to click that one tiny arrow in File Explorer’s address bar is a recipe for misclicks. Files 4.2’s larger, clearer chips and drop-down menus give you more predictable targets, reducing the frustration of accidentally jumping to the wrong folder. And with the dark theme improvements, late-night file management won’t strain your eyes as much.
The road to a smarter file manager
Files began as an open-source project in 2018 by a small group of developers who wanted to bring a modern, fluent-designed file manager to Windows. It first appeared in the Microsoft Store as a free app in 2020 and quickly gained traction thanks to its clean interface, tab support, and advanced features like dual-pane layouts and a built-in archive handler. The app’s GitHub repository has since accumulated over 40,000 stars, and the community regularly contributes extensions and localizations.
The decision to move away from traditional menus toward a toolbar-first design started with version 2.0, and each subsequent release has chipped away at the feature gaps between Files and Windows’ own File Explorer—while adding capabilities File Explorer may never adopt. Tab support arrived early, long before Microsoft added it to File Explorer in Windows 11’s 22H2 update. Customizable view layouts, background image support, and cloud drive integration followed. Version 3.0 brought a column layout mode reminiscent of macOS Finder, and 3.5 introduced a robust bulk rename tool.
Version 4.0 was a major architectural overhaul that improved performance and set the stage for the tree view and pane splitting we see today. The development team cited user feedback as the primary driver: a feature request thread for a persistent folder tree had been one of the top-voted items on the project’s GitHub for over three years. Split panes, similarly, had been requested since the early days but required the underlying code to support multiple independent view models—something the 4.0 rewrite made possible.
How to get Files 4.2 right now
The update is available now and rolls out automatically if you already have the app installed via the Microsoft Store. To check your version, open Files, click the Settings gear, and look under the “About” section. If you see version 4.2.x, you’re up to date. If you’re still on an older build, you can force the update by opening the Microsoft Store, clicking “Library,” and hitting “Get updates.”
If you’ve never tried Files, downloading it is straightforward. Search for “Files App” in the Microsoft Store or visit the official project website at files.community. The app is free, with an optional “Classic” package available for users who prefer a traditional Win32 installer over the Store version—though that distribution may not auto-update. Power users who want to test bleeding-edge features can also grab pre-release builds from the Files GitHub repository.
Once installed, you can pin Files to your taskbar or set it as your default file manager using the app’s built-in “Set as default” option. Doing so overrides the Windows Explorer shortcut, routing Win+E and folder double-clicks to Files instead. Just be aware that some legacy applications with hardcoded Explorer dependencies might still open the old file manager occasionally.
What’s next for the Files app
The team has already teased a few items on the roadmap for version 4.3, including a compact mode that trims margins and padding for information-dense screens, tighter OneDrive integration to show sync status overlays directly on file icons, and a smart search bar that learns from your frequent queries. There’s also early work on a macOS-style “stacks” feature for grouping files on the fly, though no firm timeline has been shared.
Longer-term, the developers are exploring deep linking into Microsoft 365 and Google Workspace so you can manage cloud-native files with the same fluidity as local ones. As Files continues to mature, the line between it and the built-in File Explorer grows blurrier—and the case for sticking with Microsoft’s stock option becomes harder to make for anyone who spends serious time wrangling files.