diff --git a/src/Aspire.Cli/DotNet/DotNetCliRunner.cs b/src/Aspire.Cli/DotNet/DotNetCliRunner.cs
index 0d2a1b833a9..b3247b6c6c5 100644
--- a/src/Aspire.Cli/DotNet/DotNetCliRunner.cs
+++ b/src/Aspire.Cli/DotNet/DotNetCliRunner.cs
@@ -649,7 +649,7 @@ public async Task<int> TrustHttpCertificateAsync(DotNetCliRunnerInvocationOption
         }
     }
 
-    private static bool TryParsePackageVersionFromStdout(string stdout, [NotNullWhen(true)] out string? version)
+    internal static bool TryParsePackageVersionFromStdout(string stdout, [NotNullWhen(true)] out string? version)
     {
         var lines = stdout.Split(Environment.NewLine);
         var successLine = lines.SingleOrDefault(x => x.StartsWith("Success: Aspire.ProjectTemplates"));
@@ -661,9 +661,12 @@ private static bool TryParsePackageVersionFromStdout(string stdout, [NotNullWhen
         }
 
         var templateVersion = successLine.Split(" ") switch { // Break up the success line.
-            { Length: > 2 } chunks => chunks[1].Split("::") switch { // Break up the template+version string
+            { Length: > 2 } chunks => chunks[1].Split("@") switch { // Break up the template+version string (@ separator for .NET 10.0+)
                 { Length: 2 } versionChunks => versionChunks[1], // The version in the second chunk
-                _ => null
+                _ => chunks[1].Split("::") switch { // Fallback to :: separator for older SDK versions
+                    { Length: 2 } versionChunks => versionChunks[1],
+                    _ => null
+                }
             },
             _ => null
         };
diff --git a/tests/Aspire.Cli.Tests/DotNet/DotNetCliRunnerTests.cs b/tests/Aspire.Cli.Tests/DotNet/DotNetCliRunnerTests.cs
index 98fc52b4c5e..dd27c7c5041 100644
--- a/tests/Aspire.Cli.Tests/DotNet/DotNetCliRunnerTests.cs
+++ b/tests/Aspire.Cli.Tests/DotNet/DotNetCliRunnerTests.cs
@@ -1192,4 +1192,19 @@ public async Task SearchPackagesAsyncSucceedsOnFirstAttemptWithoutRetry()
         Assert.NotNull(result.Packages);
         Assert.Equal(1, executor.AttemptCount); // Should have attempted only once
     }
+
+    [Theory]
+    [InlineData("Success: Aspire.ProjectTemplates@13.2.0-preview.1.26101.12 installed the following templates:", true, "13.2.0-preview.1.26101.12")] // New .NET 10.0 SDK format with @ separator
+    [InlineData("Success: Aspire.ProjectTemplates::13.2.0-preview.1.26101.12 installed the following templates:", true, "13.2.0-preview.1.26101.12")] // Old SDK format with :: separator
+    [InlineData("Some other output", false, null)] // Missing success line
+    [InlineData("Success: Aspire.ProjectTemplates installed the following templates:", false, null)] // Invalid format without version separator
+    public void TryParsePackageVersionFromStdout_ParsesCorrectly(string stdout, bool expectedResult, string? expectedVersion)
+    {
+        // Act
+        var result = DotNetCliRunner.TryParsePackageVersionFromStdout(stdout, out var version);
+
+        // Assert
+        Assert.Equal(expectedResult, result);
+        Assert.Equal(expectedVersion, version);
+    }
 }