diff --git a/CHANGELOG.md b/CHANGELOG.md
index c74db20..c8574d1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,11 @@ Changes are tagged: **[wrapper]** for Python/JS wrapper, **[binary]** for Chromi
 
 ## [Unreleased]
 
+## [0.4.6] — 2026-07-02
+
+- **[wrapper]** The resolved Pro license key is now passed to the browser process at launch (via `CLOAKBROWSER_LICENSE_KEY`) so the Pro binary can authenticate itself, including when you supply a custom `env`. Fixes launch failures on the newest Pro binaries. Python, JS, and .NET.
+- **[wrapper]** Headless launches on the newest Pro binaries now track the real screen surface instead of a fixed emulated viewport, keeping window geometry self-consistent (version-gated — older and free binaries keep the deterministic headless viewport). Passing an explicit `viewport=`/`no_viewport` (Python) or `viewport`/`defaultViewport` (JS) still overrides. Python, JS, and .NET.
+
 ## [0.4.5] — 2026-06-29
 
 - **[wrapper]** **`info` is now a full diagnostics command** — it reports the binary that will actually launch given your license, runs a launch test (`chrome --version`, plus a missing-shared-library probe on Linux), validates the license key to show the real tier (`free`/`solo`/`team`/`business`, or `invalid`), and checks Windows-font availability (Linux), the GeoIP database, and optional dependencies. `--quick` skips the launch test; `--json` emits machine-readable output. Python, JS, and .NET.
diff --git a/README.md b/README.md
index 19ac96b..9bbea79 100644
--- a/README.md
+++ b/README.md
@@ -150,7 +150,7 @@ page.goto("https://example.com")
 
 ---
 
-## Latest: v0.4.5 — 59 source-level stealth patches, now on every platform (Chromium 148.0.7778.215.3)
+## Latest: v0.4.6 — 59 source-level stealth patches, now on every platform (Chromium 148.0.7778.215.3)
 
 - **CloakBrowser Pro** — the latest binary (Chromium 148.0.7778.215.3, 59 source-level patches) is available to Pro subscribers, now on **all platforms including macOS** (Apple Silicon + Intel); v146 stays free forever. Set a `license_key` (`licenseKey` in JS) or the `CLOAKBROWSER_LICENSE_KEY` env var and the wrapper fetches the latest build automatically. See [CloakBrowser Pro](#cloakbrowser-pro)
 - **.NET 8 / C# client** — CloakBrowser now ships as a NuGet package (`CloakBrowser`), mirroring the Python and JS wrappers.
diff --git a/cloakbrowser/_version.py b/cloakbrowser/_version.py
index 98a433b..3dd3d2d 100644
--- a/cloakbrowser/_version.py
+++ b/cloakbrowser/_version.py
@@ -1 +1 @@
-__version__ = "0.4.5"
+__version__ = "0.4.6"
diff --git a/dotnet/src/CloakBrowser/CloakBrowser.csproj b/dotnet/src/CloakBrowser/CloakBrowser.csproj
index f5121eb..7532aa6 100644
--- a/dotnet/src/CloakBrowser/CloakBrowser.csproj
+++ b/dotnet/src/CloakBrowser/CloakBrowser.csproj
@@ -10,7 +10,7 @@
 
     <!-- NuGet packaging metadata -->
     <PackageId>CloakBrowser</PackageId>
-    <Version>0.4.5</Version>
+    <Version>0.4.6</Version>
     <Authors>CloakHQ</Authors>
     <Description>Stealth Chromium that passes every bot detection test. Drop-in Playwright (.NET) replacement with source-level fingerprint patches.</Description>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
diff --git a/dotnet/src/CloakBrowser/CloakVersion.cs b/dotnet/src/CloakBrowser/CloakVersion.cs
index f64a7a0..a6383d5 100644
--- a/dotnet/src/CloakBrowser/CloakVersion.cs
+++ b/dotnet/src/CloakBrowser/CloakVersion.cs
@@ -4,5 +4,5 @@ namespace CloakBrowser;
 public static class CloakVersion
 {
     /// <summary>The CloakBrowser .NET wrapper version.</summary>
-    public const string Version = "0.4.2";
+    public const string Version = "0.4.6";
 }
diff --git a/js/package-lock.json b/js/package-lock.json
index e8ed51f..a737f62 100644
--- a/js/package-lock.json
+++ b/js/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "cloakbrowser",
-  "version": "0.4.5",
+  "version": "0.4.6",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "cloakbrowser",
-      "version": "0.4.5",
+      "version": "0.4.6",
       "license": "MIT",
       "dependencies": {
         "tar": "^7.0.0"
diff --git a/js/package.json b/js/package.json
index 62ec9d8..68a2adc 100644
--- a/js/package.json
+++ b/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cloakbrowser",
-  "version": "0.4.5",
+  "version": "0.4.6",
   "description": "Stealth Chromium that passes every bot detection test. Drop-in Playwright/Puppeteer replacement with source-level fingerprint patches.",
   "type": "module",
   "main": "dist/index.js",