Coherence X 4.2.1 Apr 2026

Significant rewrite of the icon generation code to reduce errors when pulling favicons from complex URLs.

Resolved an issue where existing tabs were lost during the app update process; improved behavior when opening new tabs within an isolated app.

Fixed a critical bug where updating created apps would break their digital signature. Coherence X 4.2.1

: Improved support for importing extensions and profiles from multiple Chromium browsers (beyond just standard Chrome), resolving common errors when Chrome was not the primary system browser. Key Features and Fixes Feature Area Specific Improvement App Signature

: The Coherence creation tool was updated to allow relaunching after being closed without requiring a full application restart. Significant rewrite of the icon generation code to

Improved URL input handling to automatically skip unnecessary steps (like extension import) if no relevant data is detected.

: BZG recommends using the Coherence Updater (accessible via the Coherence menu bar) to ensure that apps built with version 4.2.x receive necessary security patches for their Chromium backends. Turn Any Website Into A Standalone App | by Mad Machine : Improved support for importing extensions and profiles

: Users of the 4.x series are often eligible for discounted upgrades to X5, which introduces a redesigned interface for macOS 26 ("Tahoe") and support for Ungoogled Chromium .