diff --git a/Installer/Setup/BundleInstaller/ProjectDefaults.wxi b/Installer/Setup/BundleInstaller/ProjectDefaults.wxi
index 38b7b56f..dfa1f7ca 100644
--- a/Installer/Setup/BundleInstaller/ProjectDefaults.wxi
+++ b/Installer/Setup/BundleInstaller/ProjectDefaults.wxi
@@ -14,7 +14,7 @@
     <!-- INSTALLER_DISPLAY_NAME - Name used when copying files to the Webupdater location. UPPER CASE with spaces-->
 
     <?define DEFAULT_PRODUCT_NAME="XplorePlane"?>
-    <?define DEFAULT_RELEASE_YEAR="2024"?>
+    <?define DEFAULT_RELEASE_YEAR="2026"?>
     <?define DEFAULT_INSTALLER_DISPLAY_NAME="IDE"?>
 
 
@@ -28,7 +28,7 @@
     <?define DEFAULT_FOUNDATION_MAJOR_VERSION_NUMBER="4"?>  <!--某年的结尾 -->
     <?define DEFAULT_FOUNDATION_MINOR_VERSION_NUMBER="1"?>  <!--第几季度 -->
 
-    <?define DEFAULT_FOUNDATION_VERSION_NAME="2024.1"?>
+    <?define DEFAULT_FOUNDATION_VERSION_NAME="2026.1"?>
 
 
   <!--============================= -->
diff --git a/tools/build-release.ps1 b/tools/build-release.ps1
index bb4f786b..9d9c55fa 100644
--- a/tools/build-release.ps1
+++ b/tools/build-release.ps1
@@ -135,6 +135,20 @@ function Rename-ExistingMsi {
     catch {
         throw "无法读取旧 MSI 的 ProductVersion：$legacyMsi。$($_.Exception.Message)"
     }
+    finally {
+        # Windows Installer COM objects keep the MSI open until every RCW is released.
+        foreach ($comObject in @($record, $view, $database, $installer)) {
+            if ($null -ne $comObject) {
+                [void][Runtime.InteropServices.Marshal]::FinalReleaseComObject($comObject)
+            }
+        }
+        $record = $null
+        $view = $null
+        $database = $null
+        $installer = $null
+        [GC]::Collect()
+        [GC]::WaitForPendingFinalizers()
+    }
 
     if ([string]::IsNullOrWhiteSpace($oldVersion)) {
         throw "旧 MSI 未包含有效的 ProductVersion：$legacyMsi"
@@ -145,7 +159,21 @@ function Rename-ExistingMsi {
         throw "旧 MSI 的版本化文件已存在，为避免覆盖而停止：$versionedMsi"
     }
 
-    Move-Item -LiteralPath $legacyMsi -Destination $versionedMsi
+    $moved = $false
+    for ($attempt = 1; $attempt -le 5; $attempt++) {
+        try {
+            Move-Item -LiteralPath $legacyMsi -Destination $versionedMsi -ErrorAction Stop
+            $moved = $true
+            break
+        }
+        catch [System.IO.IOException] {
+            if ($attempt -eq 5) { throw }
+            Start-Sleep -Milliseconds 500
+        }
+    }
+    if (-not $moved) {
+        throw "无法移动旧 MSI：$legacyMsi"
+    }
     Write-Host "  Archived existing MSI: $versionedMsi" -ForegroundColor DarkGray
 }