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vchromium-v148.0.7778.96-stealth2 scope: chromium Feature

This release adds 3 notable features for engineering teams evaluating rollout.

Published 13d AI Agents & Assistants
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

agent-browser chromium stealth-browser ungoogled-chromium

Summary

AI summary

Updates auto‑download tag to chromium-v148.0.7778.96-stealth2, improves fingerprint coherence across Included modules, and adds verification and artifact assets.

Changes in this release

Feature Medium

Auto-download tag updated to chromium-v148.0.7778.96-stealth2 for fresh installs.

Auto-download tag updated to chromium-v148.0.7778.96-stealth2 for fresh installs.

Source: llm_adapter@2026-05-25

Confidence: high

 —
Feature Medium

Linux platform/font defaults now coherent, avoiding Windows/Linux mix.

Linux platform/font defaults now coherent, avoiding Windows/Linux mix.

Source: llm_adapter@2026-05-25

Confidence: high

 —
Feature Medium

`Notification.permission` returns `default`; `permissions.query({name:"notifications"})` returns `prompt`.

`Notification.permission` returns `default`; `permissions.query({name:"notifications"})` returns `prompt`.

Source: llm_adapter@2026-05-25

Confidence: high

 —
Feature Medium

Network Information values derived from seed/profile, supporting datacenter/mobile profiles.

Network Information values derived from seed/profile, supporting datacenter/mobile profiles.

Source: llm_adapter@2026-05-25

Confidence: high

 —
Feature Medium

Opt‑in proxy‑coherent WebRTC policy controls added for HTTP proxy users.

Opt‑in proxy‑coherent WebRTC policy controls added for HTTP proxy users.

Source: llm_adapter@2026-05-25

Confidence: high

 —
Feature Medium

WebGPU adapter‑info coherence added when WebGPU is available; headless absence treated as profile.

WebGPU adapter‑info coherence added when WebGPU is available; headless absence treated as profile.

Source: llm_adapter@2026-05-25

Confidence: high

 —
Feature Medium

Launch hygiene warnings for risky DevTools/CDP flags and `InteractionPacer` helper added.

Launch hygiene warnings for risky DevTools/CDP flags and `InteractionPacer` helper added.

Source: llm_adapter@2026-05-25

Confidence: low

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Full changelog

Summary

Linux x64 binary release for clark-browser chromium-v148.0.7778.96-stealth2.

This release makes the Python auto-download path point at the new stealth2 binary and ships the next round of browser-level fingerprint coherence fixes.

Included

  • Auto-download release tag updated to chromium-v148.0.7778.96-stealth2 so fresh installs fetch this build.
  • Linux platform/font defaults are now coherent instead of mixing a Windows profile with a tiny Linux font surface.
  • Notification.permission now returns default directly while permissions.query({name: "notifications"}) returns prompt.
  • Network Information values (effectiveType, rtt, downlink, saveData) are seed/profile-derived, including datacenter/mobile-style profiles.
  • Added opt-in proxy-coherent WebRTC policy controls for HTTP proxy users.
  • Added WebGPU adapter-info coherence when WebGPU is available, and made headless WebGPU absence part of the profile rather than accidental drift.
  • Added launch hygiene warnings for risky DevTools/CDP/automation flags and an InteractionPacer helper for less bursty automation.

Verification

  • Local python3 -m pytest tests/test_imports.py: 32 passed.
  • Local syntax/checks: py_compile, bash -n, and git diff --check passed during release prep.
  • Built on AWS c7i.8xlarge with the Linux Docker build pipeline.
  • In-container smoke against the freshly built headless_shell: passed.
  • Extracted release tarball smoke against dist/clark-browser-linux-x64.tar.gz: passed.

Artifact

  • clark-browser-linux-x64.tar.gz
  • SHA-256: df7a3333ddf75634977a3d93ecc0c6795db81c8f4f43d5a57e81afb92f85e27b

Note: the live detector table in the repo is still the stealth1 snapshot unless separately rerun; this release is verified by source tests, c7 build, in-container smoke, and extracted-tarball smoke.

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