Equo Chromium v138: Out of Beta and Ready for Production

Welcome to our November newsletter! We’re excited to share that Equo Chromium 138.0.2 is now officially available as the first stable release of the 138 major line. This version builds on everything introduced during the 138.0.1 beta, and now brings those improvements into a solid, production-ready release. In particular, this update adds useful enhancements for Standalone, Swing, and SWT applications, with some new features and APIs that give you more control over window appearance, fullscreen behavior, and browser event handling.

Features Introduced

1. Browser Event Subscription API (Blog)

The ChromiumBrowser API now includes a subscribe mechanism that allows applications to register listeners for browser events. This provides a structured way to observe navigation changes, lifecycle transitions, or user-driven interactions, simplifying integration logic and reducing the need for low-level event handling.

2. Chromium Integration for Eclipse 138

Chromium Integration for Eclipse (CIFE), is now supported in Equo Chromium version 138! Now it can be installed with the dependencies of our latest major version, with all the improvements and new features it brings.

3. New Window Management Features (Blog)

Window Icon Support: Standalone browser windows on Windows now support custom window icons, enabling applications to display branding and better integrate visually with the operating system environment.

Window Title Support: Applications using the Standalone browser can now set and manage window titles programmatically. This assists in distinguishing multiple browser windows and aligning embedded browser UI with host application context.

Fullscreen Mode in ChromiumBrowser API (Standalone / Swing / SWT): Fullscreen behavior can now be controlled directly through the ChromiumBrowser API. Applications embedding the browser can enable full-window experiences for media playback, presentation modes, kiosk scenarios, or immersive UI states without requiring external windowing logic.

Fixes in the Stable Release Equo Chromium v138

Resolved GPU-related issues and disposal issues on Linux X11, improving reliability in applications frequently opening/closing browser instances.

Fixed blank browser windows occurring after closing an earlier instance prematurely, ensuring consistent rendering.

Improved handling of DPI scaling on Linux GTK and restored scaling consistency across Windows SWT, ensuring correct UI size and clarity.

Corrected focus handling and tab navigation across SWT/Swing/Standalone, improving keyboard interaction and usability.

Disabled native Chrome authentication dialogs, preventing conflicting prompts in embedded UI environments.

Prevented auto de-elevation of administrator privileges on Windows, respecting user/system execution contexts.

Fixed context menu behavior in draggable window regions, improving UI consistency.

Improved shutdown and close-cycle behavior, particularly when using WebGL, avoiding shutdown issues during rapid open-close operations.

Corrected Swing browser window opening behavior on Linux and addressed issue reporter behavior on Linux-based browser processes.

More expressive and flexible CSS, including nested rules, intrinsic-size animations, new scroll-driven UI primitives, and conditional logic directly in styles.

Web API support expanded with features like Document Picture-in-Picture, improved dialog lifecycle events, DOM subtree capture, upgraded Popover behaviors, and new declarative command attributes.

UI components became easier to customize, particularly dialogs and native select menus.

DevTools gained improved performance analysis tools, memory and privacy insights, and persistent AI-assisted debugging workflows.

All these updates collectively modernize how applications can style, structure, and debug complex web interfaces.

Fixes and Improvements in Equo Chromium v128

Resolved potential issue when starting file downloads in Standalone and Swing applications.

Improved browser close performance on Windows. Closing a browser window now feels quicker and more responsive.

Improved DPI scaling consistency across Windows and Linux on Eclipse 4.33 and newer, ensuring the UI looks correct on different display scales without mismatched sizing or blurriness.

For the full list of changes in each release, please visit our Release Notes page.

For any questions or assistance, feel free to reach out at support@equo.dev.

Thank you for choosing Equo!