feat: make Windows generally available

4 files changed, 82 insertions, 30 deletions

diff --git a/website/agent-guide.md b/website/agent-guide.md
index 7e20c751..71392817 100644
--- a/website/agent-guide.md
+++ b/website/agent-guide.md
@@ -32,14 +32,14 @@ curl -fsSL https://herdr.dev/install.sh | sh
 herdr
 ```
 
-Windows preview beta:
+Windows:
 
 ```powershell
 powershell -ExecutionPolicy Bypass -c "irm https://herdr.dev/install.ps1 | iex"
 herdr
 ```
 
-Homebrew, mise, and Nix installs, verification, and manual downloads: https://herdr.dev/docs/install/. Direct installs update with `herdr update`; package-manager installs update through that package manager. Check the version with `herdr --version`.
+Homebrew, mise, and Nix installs, verification, and manual downloads: https://herdr.dev/docs/install/. Direct installs use the stable channel by default and update with `herdr update`; preview is opt-in. Package-manager installs update through that package manager. Check the version with `herdr --version`.
 
 ## First-run walkthrough
 
diff --git a/website/astro.config.mjs b/website/astro.config.mjs
index 84992ed2..8afbf46f 100644
--- a/website/astro.config.mjs
+++ b/website/astro.config.mjs
@@ -225,7 +225,7 @@ export default defineConfig({
             { label: 'Socket API', translations: { ja: 'ソケット API', 'zh-CN': 'Socket API' }, slug: 'docs/socket-api' },
             { label: 'Integrations', translations: { ja: 'インテグレーション', 'zh-CN': '集成' }, slug: 'docs/integrations' },
             { label: 'Agent skill file', translations: { ja: 'エージェントスキルファイル', 'zh-CN': '智能体技能文件' }, slug: 'docs/agent-skill' },
-            { label: 'Windows beta', translations: { ja: 'Windows ベータ', 'zh-CN': 'Windows 测试版' }, slug: 'docs/windows-beta' },
+            { label: 'Windows support', translations: { ja: 'Windows サポート', 'zh-CN': 'Windows 支持' }, slug: 'docs/windows-beta' },
           ],
         },
         {
diff --git a/website/index.html b/website/index.html
index b241c1b7..06750444 100644
--- a/website/index.html
+++ b/website/index.html
@@ -146,7 +146,7 @@
                         <button type="button" id="copy-btn" aria-label="Copy install command">copy</button>
                     </div>
                 </div>
-                <div class="meta">macOS · Linux · Windows beta · Apache 2.0 &nbsp;—&nbsp; <a href="/docs/install/">windows, homebrew, nix and manual install →</a></div>
+                <div class="meta">macOS · Linux · Windows · Apache 2.0 &nbsp;—&nbsp; <a href="/docs/install/">windows, homebrew, nix and manual install →</a></div>
                 <div class="meta yc-meta"><a class="yc" href="/blog/herdr-is-joining-y-combinator/">backed by <img src="/assets/yc-logo.svg" alt="Y" width="13" height="13" /> Combinator</a></div>
             </div>
         </header>
@@ -434,7 +434,7 @@
                 <div class="n"><span>04</span></div>
                 <div class="cap-in">
                     <h3>Runs what you already run.&nbsp;<b class="arw">&#8594;</b></h3>
-                    <p>Claude Code, Codex, Cursor, opencode, Grok and the rest. Herdr doesn't wrap them or replace them, it just owns their terminals — one binary, macOS and Linux, Windows in beta.</p>
+                    <p>Claude Code, Codex, Cursor, opencode, Grok and the rest. Herdr doesn't wrap them or replace them, it just owns their terminals — one binary for macOS, Linux, and Windows.</p>
                 </div>
                 <div class="ev">
                     <div class="herd">
@@ -475,7 +475,7 @@
                         <button type="button" id="copy-btn-2" aria-label="Copy install command">copy</button>
                     </div>
                 </div>
-                <div class="meta">Windows beta: <code>irm https://herdr.dev/install.ps1 | iex</code> &nbsp;—&nbsp; <a href="/docs/">all install methods →</a></div>
+                <div class="meta">Windows: <code>irm https://herdr.dev/install.ps1 | iex</code> &nbsp;—&nbsp; <a href="/docs/">all install methods →</a></div>
             </div>
         </section>
 
diff --git a/website/install.ps1 b/website/install.ps1
index cef4af04..9dacfaa9 100644
--- a/website/install.ps1
+++ b/website/install.ps1
@@ -15,12 +15,9 @@ Set-StrictMode -Version Latest
 $ErrorActionPreference = "Stop"
 $ProgressPreference = "SilentlyContinue"
 
-if ([string]::IsNullOrWhiteSpace($Channel)) {
-    $Channel = "preview"
-}
-
-if ($Channel -notin @("stable", "preview")) {
-    Write-Error "Invalid Herdr channel '$Channel'. Use 'preview'."
+$channelWasExplicit = -not [string]::IsNullOrWhiteSpace($Channel)
+if ($channelWasExplicit -and $Channel -notin @("stable", "preview")) {
+    Write-Error "Invalid Herdr channel '$Channel'. Use 'stable' or 'preview'."
     exit 1
 }
 
@@ -406,6 +403,33 @@ function Move-DirectoryWithRetry {
     }
 }
 
+function Remove-DirectoryWithRetry {
+    param(
+        [string]$Path,
+        [int]$TimeoutMilliseconds = 5000
+    )
+
+    $fullPath = [System.IO.Path]::GetFullPath($Path)
+    $extendedPath = if ($fullPath.StartsWith("\\")) {
+        "\\?\UNC\" + $fullPath.TrimStart([char]'\')
+    } else {
+        "\\?\" + $fullPath
+    }
+    $deadline = [DateTime]::UtcNow.AddMilliseconds($TimeoutMilliseconds)
+    while (Test-Path -LiteralPath $Path) {
+        try {
+            [System.IO.Directory]::Delete($extendedPath, $true)
+            return
+        } catch {
+            if ([DateTime]::UtcNow -ge $deadline) {
+                Write-WarningStep "Herdr installed successfully but could not remove a temporary release backup at $Path."
+                return
+            }
+            Start-Sleep -Milliseconds 100
+        }
+    }
+}
+
 function Invoke-WithInstallLock {
     param(
         [string]$LockPath,
@@ -579,11 +603,6 @@ if (-not [Environment]::Is64BitOperatingSystem) {
     exit 1
 }
 
-if ($Channel -eq "stable") {
-    Write-Error "Windows builds are preview-only for now. Omit -Channel or use -Channel preview."
-    exit 1
-}
-
 $architecture = [System.Runtime.InteropServices.RuntimeInformation,mscorlib]::OSArchitecture.ToString()
 switch ($architecture) {
     "X64" {
@@ -601,14 +620,6 @@ switch ($architecture) {
     }
 }
 
-if (-not $useLocalPackage -and [string]::IsNullOrWhiteSpace($ManifestUrl)) {
-    $ManifestUrl = if ($Channel -eq "preview") {
-        "https://herdr.dev/preview.json"
-    } else {
-        "https://herdr.dev/latest.json"
-    }
-}
-
 $herdrHome = if ([string]::IsNullOrWhiteSpace($env:HERDR_HOME)) {
     Join-Path $env:USERPROFILE ".herdr"
 } else {
@@ -649,13 +660,57 @@ if ($useLocalPackage) {
         Format = $LocalPackageFormat
     }
 } else {
+    if (-not $channelWasExplicit) {
+        if (-not [string]::IsNullOrWhiteSpace($existingHerdr)) {
+            $detectedChannel = [string](& $existingHerdr channel show 2>$null | Select-Object -Last 1)
+            $detectedChannel = $detectedChannel.Trim()
+            if ($LASTEXITCODE -ne 0 -or $detectedChannel -notin @("stable", "preview")) {
+                throw "Could not determine the existing Herdr update channel. Rerun with -Channel stable or -Channel preview."
+            }
+            $Channel = $detectedChannel
+            Write-Step "Preserving existing Herdr $Channel channel"
+        } elseif (-not [string]::IsNullOrWhiteSpace($ManifestUrl) -and $ManifestUrl -match "/preview\.json$") {
+            $Channel = "preview"
+        } else {
+            $Channel = "stable"
+        }
+    }
+
+    if ([string]::IsNullOrWhiteSpace($ManifestUrl)) {
+        $ManifestUrl = if ($Channel -eq "preview") {
+            "https://herdr.dev/preview.json"
+        } else {
+            "https://herdr.dev/latest.json"
+        }
+    }
+
     Write-Step "Fetching Herdr $Channel manifest"
     $manifest = ConvertTo-ManifestObject -Manifest (Invoke-RestMethod -Uri $ManifestUrl)
+    $manifestChannelProperty = $manifest.PSObject.Properties["channel"]
+    if (-not $channelWasExplicit -and $null -ne $manifestChannelProperty -and [string]$manifestChannelProperty.Value -eq "preview") {
+        $Channel = "preview"
+    }
+    $assetsProperty = $manifest.PSObject.Properties["assets"]
+    $assetProperty = if ($null -eq $assetsProperty) {
+        $null
+    } else {
+        $assetsProperty.Value.PSObject.Properties[$target]
+    }
+    if ($null -eq $assetProperty -and
+        -not $channelWasExplicit -and
+        $Channel -eq "stable" -and
+        $ManifestUrl -match "/latest\.json$") {
+        Write-WarningStep "The stable manifest does not include Windows yet; using preview during the stable-channel rollout."
+        $Channel = "preview"
+        $ManifestUrl = $ManifestUrl.Substring(0, $ManifestUrl.Length - "latest.json".Length) + "preview.json"
+        Write-Step "Fetching Herdr preview manifest"
+        $manifest = ConvertTo-ManifestObject -Manifest (Invoke-RestMethod -Uri $ManifestUrl)
+    }
+    $asset = Get-ManifestAsset -Manifest $manifest -Target $target
     if (-not [string]::IsNullOrWhiteSpace($ExpectedBuildId) -and [string]$manifest.build_id -ne $ExpectedBuildId) {
         throw "Preview manifest changed while updating. Expected build $ExpectedBuildId but found $($manifest.build_id). Run herdr update again."
     }
     $versionIdentity = Resolve-HerdrVersion -Manifest $manifest -SelectedChannel $Channel
-    $asset = Get-ManifestAsset -Manifest $manifest -Target $target
 }
 $safeVersionIdentity = $versionIdentity -replace '[^0-9A-Za-z._-]', '-'
 $releaseName = "$safeVersionIdentity-$targetTriple"
@@ -710,9 +765,6 @@ try {
                 Write-WarningStep "Windows could not activate the downloaded release. Another process may have a package file open, such as antivirus or indexing. No incomplete release was activated. Run herdr update again."
                 throw
             }
-            if ($null -ne $backupDir) {
-                Remove-Item -LiteralPath $backupDir -Recurse -Force -ErrorAction SilentlyContinue
-            }
         }
 
         $releaseHerdr = Join-Path $releaseDir "herdr.exe"
@@ -721,7 +773,7 @@ try {
             throw "Installed Herdr command failed verification: $releaseHerdr --version"
         }
         Get-ChildItem -LiteralPath $releasesDir -Force -Directory -Filter ".backup.$releaseName.*" -ErrorAction SilentlyContinue |
-            Remove-Item -Recurse -Force -ErrorAction SilentlyContinue
+            ForEach-Object { Remove-DirectoryWithRetry -Path $_.FullName }
 
         Set-ManagedJunction -LinkPath $currentDir -TargetPath $releaseDir -ManagedTargetPrefix $releasesDir
         Set-ManagedJunction -LinkPath $visibleBinDir -TargetPath $releaseDir -ManagedTargetPrefix $standaloneRoot -AllowLegacyHerdrBinMigration $allowLegacyVisibleBinMigration