diff --git a/CHANGELOG.md b/CHANGELOG.md
index c6c309b..b6c2df4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,14 @@ All notable user-facing changes are documented here. This project follows [Seman
 
 ## [Unreleased]
 
+## [1.1.4] - 2026-07-13
+
+### Fixed
+
+- Execute the curl bootstrap through PowerShell's text pipeline instead of an unreliable native-to-native stdin pipe.
+- Allow the optional version selector to remain omitted when the downloaded script text is evaluated directly.
+- Exercise the README's downloaded-text execution behavior in the installer lifecycle test.
+
 ## [1.1.3] - 2026-07-13
 
 ### Added
@@ -47,7 +55,8 @@ All notable user-facing changes are documented here. This project follows [Seman
 
 - Added `/W4 /WX /sdl`, control-flow protection, ASLR/DEP/CET-compatible linker flags, reproducible Release builds, MSVC AddressSanitizer tests, CRT leak checks, static analysis, CodeQL, and pinned CI dependencies.
 
-[Unreleased]: https://github.com/xptea/VGPU-Mon/compare/v1.1.3...HEAD
+[Unreleased]: https://github.com/xptea/VGPU-Mon/compare/v1.1.4...HEAD
+[1.1.4]: https://github.com/xptea/VGPU-Mon/compare/v1.1.3...v1.1.4
 [1.1.3]: https://github.com/xptea/VGPU-Mon/compare/v1.1.2...v1.1.3
 [1.1.2]: https://github.com/xptea/VGPU-Mon/compare/v1.1.1...v1.1.2
 [1.1.1]: https://github.com/xptea/VGPU-Mon/releases/tag/v1.1.1
diff --git a/README.md b/README.md
index 705e0c7..7c5c1e0 100644
--- a/README.md
+++ b/README.md
@@ -48,7 +48,7 @@ Some protected processes cannot be inspected or terminated without elevation. VG
 Open PowerShell or Windows Terminal and paste this one command:
 
 ```powershell
-curl.exe -fsSL https://raw.githubusercontent.com/xptea/VGPU-Mon/main/install.ps1 | powershell.exe -NoProfile -ExecutionPolicy Bypass -Command -
+curl.exe -fsSL https://raw.githubusercontent.com/xptea/VGPU-Mon/main/install.ps1 | Out-String | Invoke-Expression
 ```
 
 The bootstrap script finds the latest stable [GitHub Release](https://github.com/xptea/VGPU-Mon/releases), downloads its per-user installer and `SHA256SUMS.txt`, verifies the installer SHA-256, and only then runs it silently. It does not require administrator access. Open a new terminal tab after installation, then run:
diff --git a/install.ps1 b/install.ps1
index 6b407f1..3ef326d 100644
--- a/install.ps1
+++ b/install.ps1
@@ -3,7 +3,7 @@ param(
     [ValidatePattern('^[A-Za-z0-9_.-]+/[A-Za-z0-9_.-]+$')]
     [string]$Repository = 'xptea/VGPU-Mon',
 
-    [ValidatePattern('^v?[0-9]+\.[0-9]+\.[0-9]+$')]
+    [ValidatePattern('^$|^v?[0-9]+\.[0-9]+\.[0-9]+$')]
     [string]$Version,
 
     [Parameter(DontShow)]
diff --git a/src/version.h b/src/version.h
index 2290b4a..69cf882 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1,7 +1,7 @@
 #ifndef VGPU_VERSION_H
 #define VGPU_VERSION_H
 
-#define VGPU_VERSION "1.1.3"
-#define VGPU_VERSION_NUM 1,1,3,0
+#define VGPU_VERSION "1.1.4"
+#define VGPU_VERSION_NUM 1,1,4,0
 
 #endif
diff --git a/tests/test_installer.ps1 b/tests/test_installer.ps1
index 7010437..69433b2 100644
--- a/tests/test_installer.ps1
+++ b/tests/test_installer.ps1
@@ -122,12 +122,18 @@ if (Test-Path -LiteralPath 'HKCU:\Software\VGPU-Mon') {
 $checksumPath = Join-Path ([IO.Path]::GetTempPath()) "vgpu-mon-checksums-$([Guid]::NewGuid().ToString('N')).txt"
 $bootstrapInstalled = $false
 try {
+    # The README executes the downloaded text in the current PowerShell
+    # process. Compile the source text into a script block here so CI covers
+    # the same parameter-binding and execution behavior without using the
+    # network or installing a previously published release.
+    $bootstrapSource = Get-Content -LiteralPath (Join-Path $root 'install.ps1') -Raw
+    $bootstrapScript = [scriptblock]::Create($bootstrapSource)
     $installerHash = (Get-FileHash -LiteralPath $installer -Algorithm SHA256).Hash.ToLowerInvariant()
     "$('0' * 64)  $(Split-Path -Leaf $installer)" |
         Set-Content -LiteralPath $checksumPath -Encoding ascii
     $rejectedBadChecksum = $false
     try {
-        & (Join-Path $root 'install.ps1') -InstallerPath $installer -ChecksumPath $checksumPath
+        & $bootstrapScript -InstallerPath $installer -ChecksumPath $checksumPath
     }
     catch {
         if ($_.Exception.Message -like 'SHA-256 verification failed*') {
@@ -147,7 +153,7 @@ try {
     "$installerHash  $(Split-Path -Leaf $installer)" |
         Set-Content -LiteralPath $checksumPath -Encoding ascii
 
-    & (Join-Path $root 'install.ps1') -InstallerPath $installer -ChecksumPath $checksumPath
+    & $bootstrapScript -InstallerPath $installer -ChecksumPath $checksumPath
     $bootstrapInstalled = $true
     if (-not (Test-Path -LiteralPath $installedExe)) {
         throw 'Bootstrap installer did not create vgpu.exe.'