chore: bump version to 2.0.28

* Initial plan

* Fix CS1525 compiler error for Unity 2019.4 by replacing ??= with version-compatible code

Co-authored-by: boxqkrtm <8157743+boxqkrtm@users.noreply.github.com>

* Add clarifying comment for Unity 2019.4 C# 7.3 compatibility

Co-authored-by: OmarAlFarajat <OmarAlFarajat@users.noreply.github.com>

Co-authored-by: boxqkrtm <8157743+boxqkrtm@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: boxqkrtm <8157743+boxqkrtm@users.noreply.github.com>

CHANGELOG.md

@@ -1,4 +1,23 @@
-# Code Editor Package for Visual Studio
+# Code Editor Package for Cursor
+
+## [2.0.28] - 2026-02-12
+
+Integration:
+
+- Performance optimization for opening files
+- Fix CS1525: Use C# 7.3-compatible null-coalescing for Unity 2019.4
+
+## [2.0.27] - 2025-11-02
+
+Integration:
+
+- Add Multiple or Single Cursor Instance Options
+
+## [2.0.26] - 2025-11-02
+
+Integration:
+
+- Add workspace support
 
 ## [2.0.22] - 2023-10-03
 
@@ -48,7 +67,7 @@ Project generation:
 Integration:
 
 - Performance improvements with `EditorApplication.update` callbacks.
- 
+
 Project generation:
 
 - Add extra compiler options for analyzers and source generators.
@@ -71,7 +90,7 @@ Project generation:
 Integration:
 
 - Prevent ADB Refresh while being in safe-mode with a URP project
-- Fixed an issue keeping the progress bar visible even after opening a script with Visual Studio. 
+- Fixed an issue keeping the progress bar visible even after opening a script with Visual Studio.
 
 ## [2.0.15] - 2022-03-21
 

Editor/ProcessRunner.cs

@@ -8,6 +8,13 @@ using System.Diagnostics;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
+using System.Runtime.InteropServices;
+using System.ComponentModel;
+using Debug = UnityEngine.Debug;
+using System.IO;
+using SimpleJSON;
+using System.Collections.Generic;
+using System.Linq;
 
 namespace Microsoft.Unity.VisualStudio.Editor
 {
@@ -108,5 +115,97 @@ namespace Microsoft.Unity.VisualStudio.Editor
 
 			sb?.Append(data);
 		}
+
+		public static string[] GetProcessWorkspaces(Process process)
+		{
+			if (process == null)
+				return null;
+
+			try
+			{
+				var workspaces = new List<string>();
+				var userProfile = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
+				string cursorStoragePath;
+
+#if UNITY_EDITOR_OSX
+				cursorStoragePath = Path.Combine(userProfile, "Library", "Application Support", "cursor", "User", "workspaceStorage");
+#elif UNITY_EDITOR_LINUX
+				cursorStoragePath = Path.Combine(userProfile, ".config", "Cursor", "User", "workspaceStorage");
+#else
+				cursorStoragePath = Path.Combine(userProfile, "AppData", "Roaming", "cursor", "User", "workspaceStorage");
+#endif
+				
+				if (Directory.Exists(cursorStoragePath))
+				{
+					foreach (var workspaceDir in Directory.GetDirectories(cursorStoragePath))
+					{
+						try
+						{
+							var workspaceStatePath = Path.Combine(workspaceDir, "workspace.json");
+							if (File.Exists(workspaceStatePath))
+							{
+								var content = File.ReadAllText(workspaceStatePath);
+								if (!string.IsNullOrEmpty(content))
+								{
+									var workspace = JSONNode.Parse(content);
+									if (workspace != null)
+									{
+										var folder = workspace["folder"];
+										if (folder != null && !string.IsNullOrEmpty(folder.Value))
+										{
+											var workspacePath = folder.Value;
+											if (workspacePath.StartsWith("file:///"))
+											{
+												workspacePath = Uri.UnescapeDataString(workspacePath.Substring(8));
+												workspaces.Add(workspacePath);
+											}
+										}
+									}
+								}
+							}
+
+							var windowStatePath = Path.Combine(workspaceDir, "window.json");
+							if (File.Exists(windowStatePath))
+							{
+								var content = File.ReadAllText(windowStatePath);
+								if (!string.IsNullOrEmpty(content))
+								{
+									var windowState = JSONNode.Parse(content);
+									if (windowState != null)
+									{
+										var workspace = windowState["workspace"];
+										if (workspace != null && !string.IsNullOrEmpty(workspace.Value))
+										{
+											var workspacePath = workspace.Value;
+											if (workspacePath.StartsWith("file:///"))
+											{
+												workspacePath = Uri.UnescapeDataString(workspacePath.Substring(8));
+												workspaces.Add(workspacePath);
+											}
+										}
+									}
+								}
+							}
+						}
+						catch (Exception ex)
+						{
+							Debug.LogWarning($"[Cursor] Error reading workspace state file: {ex.Message}");
+							continue;
+						}
+					}
+				}
+				else
+				{
+					Debug.LogWarning($"[Cursor] Workspace storage directory not found: {cursorStoragePath}");
+				}
+
+				return workspaces.Distinct().ToArray();
+			}
+			catch (Exception ex)
+			{
+				Debug.LogError($"[Cursor] Error getting workspace directory: {ex.Message}");
+				return null;
+			}
+		}
 	}
 }

Editor/VisualStudioCursorInstallation.cs

@@ -10,26 +10,36 @@ using System.IO;
 using System.Linq;
 using System.Text.RegularExpressions;
 using UnityEngine;
+using UnityEditor;
 using SimpleJSON;
 using IOPath = System.IO.Path;
+using Debug = UnityEngine.Debug;
 
-namespace Microsoft.Unity.VisualStudio.Editor {
+namespace Microsoft.Unity.VisualStudio.Editor
-	internal class VisualStudioCursorInstallation : VisualStudioInstallation {
+{
+	internal class VisualStudioCursorInstallation : VisualStudioInstallation
+	{
 		private static readonly IGenerator _generator = new SdkStyleProjectGeneration();
+		internal const string ReuseExistingWindowKey = "cursor_reuse_existing_window";
 
-		public override bool SupportsAnalyzers {
+		public override bool SupportsAnalyzers
-			get {
+		{
+			get
+			{
 				return true;
 			}
 		}
 
-		public override Version LatestLanguageVersionSupported {
+		public override Version LatestLanguageVersionSupported
-			get {
+		{
+			get
+			{
 				return new Version(11, 0);
 			}
 		}
 
-		private string GetExtensionPath() {
+		private string GetExtensionPath()
+		{
 			var vscode = IsPrerelease ? ".vscode-insiders" : ".vscode";
 			var extensionsPath = IOPath.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), vscode, "extensions");
 			if (!Directory.Exists(extensionsPath))
@@ -41,7 +51,8 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 				.FirstOrDefault();
 		}
 
-		public override string[] GetAnalyzers() {
+		public override string[] GetAnalyzers()
+		{
 			var vstuPath = GetExtensionPath();
 			if (string.IsNullOrEmpty(vstuPath))
 				return Array.Empty<string>();
@@ -49,13 +60,16 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 			return GetAnalyzers(vstuPath);
 		}
 
-		public override IGenerator ProjectGenerator {
+		public override IGenerator ProjectGenerator
-			get {
+		{
+			get
+			{
 				return _generator;
 			}
 		}
 
-		private static bool IsCandidateForDiscovery(string path) {
+		private static bool IsCandidateForDiscovery(string path)
+		{
 #if UNITY_EDITOR_OSX
 			return Directory.Exists(path) && Regex.IsMatch(path, ".*Cursor.*.app$", RegexOptions.IgnoreCase);
 #elif UNITY_EDITOR_WIN
@@ -66,12 +80,14 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 		}
 
 		[Serializable]
-		internal class VisualStudioCodeManifest {
+		internal class VisualStudioCodeManifest
+		{
 			public string name;
 			public string version;
 		}
 
-		public static bool TryDiscoverInstallation(string editorPath, out IVisualStudioInstallation installation) {
+		public static bool TryDiscoverInstallation(string editorPath, out IVisualStudioInstallation installation)
+		{
 			installation = null;
 
 			if (string.IsNullOrEmpty(editorPath))
@@ -83,7 +99,8 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 			Version version = null;
 			var isPrerelease = false;
 
-			try {
+			try
+			{
 				var manifestBase = GetRealPath(editorPath);
 
 #if UNITY_EDITOR_WIN
@@ -103,17 +120,21 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 					return false;
 
 				var manifestFullPath = IOPath.Combine(manifestBase, "resources", "app", "package.json");
-				if (File.Exists(manifestFullPath)) {
+				if (File.Exists(manifestFullPath))
+				{
 					var manifest = JsonUtility.FromJson<VisualStudioCodeManifest>(File.ReadAllText(manifestFullPath));
 					Version.TryParse(manifest.version.Split('-').First(), out version);
 					isPrerelease = manifest.version.ToLower().Contains("insider");
 				}
-			} catch (Exception) {
+			}
+			catch (Exception)
+			{
 				// do not fail if we are not able to retrieve the exact version number
 			}
 
 			isPrerelease = isPrerelease || editorPath.ToLower().Contains("insider");
-			installation = new VisualStudioCursorInstallation() {
+			installation = new VisualStudioCursorInstallation()
+			{
 				IsPrerelease = isPrerelease,
 				Name = "Cursor" + (isPrerelease ? " - Insider" : string.Empty) + (version != null ? $" [{version.ToString(3)}]" : string.Empty),
 				Path = editorPath,
@@ -123,7 +144,8 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 			return true;
 		}
 
-		public static IEnumerable<IVisualStudioInstallation> GetVisualStudioInstallations() {
+		public static IEnumerable<IVisualStudioInstallation> GetVisualStudioInstallations()
+		{
 			var candidates = new List<string>();
 
 #if UNITY_EDITOR_WIN
@@ -146,7 +168,8 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 			candidates.AddRange(GetXdgCandidates());
 #endif
 
-			foreach (var candidate in candidates.Distinct()) {
+			foreach (var candidate in candidates.Distinct())
+			{
 				if (TryDiscoverInstallation(candidate, out var installation))
 					yield return installation;
 			}
@@ -171,7 +194,7 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 					var desktopFile = IOPath.Combine(dir, "applications/code.desktop");
 					if (!File.Exists(desktopFile))
 						continue;
-				
+
 					var content = File.ReadAllText(desktopFile);
 					match = DesktopFileExecEntry.Match(content);
 				}
@@ -201,13 +224,16 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 			return new String(cbuf, 0, chars);
 		}
 #else
-		internal static string GetRealPath(string path) {
+		internal static string GetRealPath(string path)
+		{
 			return path;
 		}
 #endif
 
-		public override void CreateExtraFiles(string projectDirectory) {
+		public override void CreateExtraFiles(string projectDirectory)
-			try {
+		{
+			try
+			{
 				var vscodeDirectory = IOPath.Combine(projectDirectory.NormalizePathSeparators(), ".vscode");
 				Directory.CreateDirectory(vscodeDirectory);
 
@@ -216,7 +242,9 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 				CreateRecommendedExtensionsFile(vscodeDirectory, enablePatch);
 				CreateSettingsFile(vscodeDirectory, enablePatch);
 				CreateLaunchFile(vscodeDirectory, enablePatch);
-			} catch (IOException) {
+			}
+			catch (IOException)
+			{
 			}
 		}
 
@@ -231,9 +259,11 @@ namespace Microsoft.Unity.VisualStudio.Editor {
      ]
 }";
 
-		private static void CreateLaunchFile(string vscodeDirectory, bool enablePatch) {
+		private static void CreateLaunchFile(string vscodeDirectory, bool enablePatch)
+		{
 			var launchFile = IOPath.Combine(vscodeDirectory, "launch.json");
-			if (File.Exists(launchFile)) {
+			if (File.Exists(launchFile))
+			{
 				if (enablePatch)
 					PatchLaunchFile(launchFile);
 
@@ -243,8 +273,10 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 			File.WriteAllText(launchFile, DefaultLaunchFileContent);
 		}
 
-		private static void PatchLaunchFile(string launchFile) {
+		private static void PatchLaunchFile(string launchFile)
-			try {
+		{
+			try
+			{
 				const string configurationsKey = "configurations";
 				const string typeKey = "type";
 
@@ -252,7 +284,8 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 				var launch = JSONNode.Parse(content);
 
 				var configurations = launch[configurationsKey] as JSONArray;
-				if (configurations == null) {
+				if (configurations == null)
+				{
 					configurations = new JSONArray();
 					launch.Add(configurationsKey, configurations);
 				}
@@ -264,14 +297,18 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 				configurations.Add(defaultContent[configurationsKey][0]);
 
 				WriteAllTextFromJObject(launchFile, launch);
-			} catch (Exception) {
+			}
+			catch (Exception)
+			{
 				// do not fail if we cannot patch the launch.json file
 			}
 		}
 
-		private void CreateSettingsFile(string vscodeDirectory, bool enablePatch) {
+		private void CreateSettingsFile(string vscodeDirectory, bool enablePatch)
+		{
 			var settingsFile = IOPath.Combine(vscodeDirectory, "settings.json");
-			if (File.Exists(settingsFile)) {
+			if (File.Exists(settingsFile))
+			{
 				if (enablePatch)
 					PatchSettingsFile(settingsFile);
 
@@ -344,8 +381,10 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 			File.WriteAllText(settingsFile, content);
 		}
 
-		private void PatchSettingsFile(string settingsFile) {
+		private void PatchSettingsFile(string settingsFile)
-			try {
+		{
+			try
+			{
 				const string excludesKey = "files.exclude";
 				const string solutionKey = "dotnet.defaultSolution";
 
@@ -360,7 +399,8 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 				var patched = false;
 
 				// Remove files.exclude for solution+project files in the project root
-				foreach (var exclude in excludes) {
+				foreach (var exclude in excludes)
+				{
 					if (!bool.TryParse(exclude.Value, out var exc) || !exc)
 						continue;
 
@@ -379,7 +419,8 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 				// Check default solution
 				var defaultSolution = settings[solutionKey];
 				var solutionFile = IOPath.GetFileName(ProjectGenerator.SolutionFile());
-				if (defaultSolution == null || defaultSolution.Value != solutionFile) {
+				if (defaultSolution == null || defaultSolution.Value != solutionFile)
+				{
 					settings[solutionKey] = solutionFile;
 					patched = true;
 				}
@@ -391,7 +432,9 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 					excludes.Remove(patch);
 
 				WriteAllTextFromJObject(settingsFile, settings);
-			} catch (Exception) {
+			}
+			catch (Exception)
+			{
 				// do not fail if we cannot patch the settings.json file
 			}
 		}
@@ -404,10 +447,12 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 }
 ";
 
-		private static void CreateRecommendedExtensionsFile(string vscodeDirectory, bool enablePatch) {
+		private static void CreateRecommendedExtensionsFile(string vscodeDirectory, bool enablePatch)
+		{
 			// see https://tattoocoder.com/recommending-vscode-extensions-within-your-open-source-projects/
 			var extensionFile = IOPath.Combine(vscodeDirectory, "extensions.json");
-			if (File.Exists(extensionFile)) {
+			if (File.Exists(extensionFile))
+			{
 				if (enablePatch)
 					PatchRecommendedExtensionsFile(extensionFile);
 
@@ -417,15 +462,18 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 			File.WriteAllText(extensionFile, DefaultRecommendedExtensionsContent);
 		}
 
-		private static void PatchRecommendedExtensionsFile(string extensionFile) {
+		private static void PatchRecommendedExtensionsFile(string extensionFile)
-			try {
+		{
+			try
+			{
 				const string recommendationsKey = "recommendations";
 
 				var content = File.ReadAllText(extensionFile);
 				var extensions = JSONNode.Parse(content);
 
 				var recommendations = extensions[recommendationsKey] as JSONArray;
-				if (recommendations == null) {
+				if (recommendations == null)
+				{
 					recommendations = new JSONArray();
 					extensions.Add(recommendationsKey, recommendations);
 				}
@@ -435,34 +483,146 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 
 				recommendations.Add(MicrosoftUnityExtensionId);
 				WriteAllTextFromJObject(extensionFile, extensions);
-			} catch (Exception) {
+			}
+			catch (Exception)
+			{
 				// do not fail if we cannot patch the extensions.json file
 			}
 		}
 
-		private static void WriteAllTextFromJObject(string file, JSONNode node) {
+		private static void WriteAllTextFromJObject(string file, JSONNode node)
+		{
 			using (var fs = File.Open(file, FileMode.Create))
-			using (var sw = new StreamWriter(fs)) {
+			using (var sw = new StreamWriter(fs))
+			{
 				// Keep formatting/indent in sync with default contents
 				sw.Write(node.ToString(aIndent: 4));
 			}
 		}
 
-		public override bool Open(string path, int line, int column, string solution) {
+		private Process FindRunningCursorWithSolution(string solutionPath)
+		{
+			var normalizedTargetPath = solutionPath.Replace('\\', '/').TrimEnd('/').ToLowerInvariant();
+
+#if UNITY_EDITOR_WIN
+			// Keep as is for Windows platform since path already includes drive letter
+#else
+			// Ensure path starts with / for macOS and Linux platforms
+			if (!normalizedTargetPath.StartsWith("/"))
+			{
+				normalizedTargetPath = "/" + normalizedTargetPath;
+			}
+#endif
+
+			var processes = new List<Process>();
+
+			// Get process name list based on different operating systems
+#if UNITY_EDITOR_OSX
+			processes.AddRange(Process.GetProcessesByName("Cursor"));
+			processes.AddRange(Process.GetProcessesByName("Cursor Helper"));
+#elif UNITY_EDITOR_LINUX
+			processes.AddRange(Process.GetProcessesByName("cursor"));
+			processes.AddRange(Process.GetProcessesByName("Cursor"));
+#else
+			processes.AddRange(Process.GetProcessesByName("cursor"));
+#endif
+
+			foreach (var process in processes)
+			{
+				try
+				{
+					var workspaces = ProcessRunner.GetProcessWorkspaces(process);
+					if (workspaces != null && workspaces.Length > 0)
+					{
+						foreach (var workspace in workspaces)
+						{
+							var normalizedWorkspaceDir = workspace.Replace('\\', '/').TrimEnd('/').ToLowerInvariant();
+
+#if UNITY_EDITOR_WIN
+							// Keep as is for Windows platform
+#else
+							// Ensure path starts with / for macOS and Linux platforms
+							if (!normalizedWorkspaceDir.StartsWith("/"))
+							{
+								normalizedWorkspaceDir = "/" + normalizedWorkspaceDir;
+							}
+#endif
+
+							if (string.Equals(normalizedWorkspaceDir, normalizedTargetPath, StringComparison.OrdinalIgnoreCase) ||
+								normalizedTargetPath.StartsWith(normalizedWorkspaceDir + "/", StringComparison.OrdinalIgnoreCase) ||
+								normalizedWorkspaceDir.StartsWith(normalizedTargetPath + "/", StringComparison.OrdinalIgnoreCase))
+							{
+								return process;
+							}
+						}
+					}
+				}
+				catch (Exception ex)
+				{
+					Debug.LogError($"[Cursor] Error checking process: {ex}");
+					continue;
+				}
+			}
+			return null;
+		}
+
+		private static string TryFindWorkspace(string directory)
+		{
+			var files = Directory.GetFiles(directory, "*.code-workspace", SearchOption.TopDirectoryOnly);
+			if (files.Length == 0 || files.Length > 1)
+				return null;
+
+			return files[0];
+		}
+
+		public override bool Open(string path, int line, int column, string solution)
+		{
 			line = Math.Max(1, line);
 			column = Math.Max(0, column);
 
 			var directory = IOPath.GetDirectoryName(solution);
 			var application = Path;
 
-			ProcessRunner.Start(string.IsNullOrEmpty(path) ?
+			var workspace = TryFindWorkspace(directory);
-				ProcessStartInfoFor(application, $"\"{directory}\"") :
+			// Use version-compatible null-coalescing for Unity 2019.4 (C# 7.3) support
-				ProcessStartInfoFor(application, $"\"{directory}\" -g \"{path}\":{line}:{column}"));
+#if UNITY_2020_2_OR_NEWER
+			workspace ??= directory;
+#else
+			workspace = workspace ?? directory;
+#endif
+			directory = workspace;
 
+			if (EditorPrefs.GetBool(ReuseExistingWindowKey, false))
+			{
+				var existingProcess = FindRunningCursorWithSolution(directory);
+				if (existingProcess != null)
+				{
+					try
+					{
+						var args = string.IsNullOrEmpty(path) ?
+							$"--reuse-window \"{directory}\"" :
+							$"--reuse-window -g \"{path}\":{line}:{column}";
+
+						ProcessRunner.Start(ProcessStartInfoFor(application, args));
+						return true;
+					}
+					catch (Exception ex)
+					{
+						Debug.LogError($"[Cursor] Error using existing instance: {ex}");
+					}
+				}
+			}
+
+			var newArgs = string.IsNullOrEmpty(path) ?
+				$"--new-window \"{directory}\"" :
+				$"--new-window \"{directory}\" -g \"{path}\":{line}:{column}";
+
+			ProcessRunner.Start(ProcessStartInfoFor(application, newArgs));
 			return true;
 		}
 
-		private static ProcessStartInfo ProcessStartInfoFor(string application, string arguments) {
+		private static ProcessStartInfo ProcessStartInfoFor(string application, string arguments)
+		{
 #if UNITY_EDITOR_OSX
 			// wrap with built-in OSX open feature
 			arguments = $"-n \"{application}\" --args {arguments}";
@@ -473,7 +633,8 @@ namespace Microsoft.Unity.VisualStudio.Editor {
 #endif
 		}
 
-		public static void Initialize() {
+		public static void Initialize()
+		{
 		}
 	}
 }

Editor/VisualStudioEditor.cs

@@ -44,8 +44,11 @@ namespace Microsoft.Unity.VisualStudio.Editor
 		[InitializeOnLoadMethod]
 		static void LegacyVisualStudioCodePackageDisabler()
 		{
-			// disable legacy Visual Studio Code packages
+#if UNITY_2021_1_OR_NEWER
 			var editor = CodeEditor.Editor.GetCodeEditorForPath("code.cmd");
+#else
+			var editor = CodeEditor.CurrentEditor;
+#endif
 			if (editor == null)
 				return;
 
@@ -132,6 +135,16 @@ namespace Microsoft.Unity.VisualStudio.Editor
 			GUILayout.Label($"<size=10><color=grey>{package.displayName} v{package.version} enabled</color></size>", style);
 			GUILayout.EndHorizontal();
 
+			if (installation is VisualStudioCursorInstallation)
+			{
+				var reuseWindow = EditorPrefs.GetBool(VisualStudioCursorInstallation.ReuseExistingWindowKey, false);
+				var newReuseWindow = EditorGUILayout.Toggle(new GUIContent("Reuse existing Cursor window", "When enabled, opens files in an existing Cursor window if found. When disabled, always opens a new window."), reuseWindow);
+				if (newReuseWindow != reuseWindow)
+					EditorPrefs.SetBool(VisualStudioCursorInstallation.ReuseExistingWindowKey, newReuseWindow);
+
+				EditorGUILayout.Space();
+			}
+
 			EditorGUILayout.LabelField("Generate .csproj files for:");
 			EditorGUI.indentLevel++;
 			SettingsButton(ProjectGenerationFlag.Embedded, "Embedded packages", "", installation);
@@ -216,7 +229,9 @@ namespace Microsoft.Unity.VisualStudio.Editor
 		{
 			var editorPath = CodeEditor.CurrentEditorInstallation;
 
-			if (!Discovery.TryDiscoverInstallation(editorPath, out var installation)) {
+			// Performance optimization: Use cached installation lookup instead of discovering every time
+			if (!TryGetVisualStudioInstallationForPath(editorPath, lookupDiscoveredInstallations: true, out var installation))
+			{
 				Debug.LogWarning($"Visual Studio executable {editorPath} is not found. Please change your settings in Edit > Preferences > External Tools.");
 				return false;
 			}
@@ -228,7 +243,8 @@ namespace Microsoft.Unity.VisualStudio.Editor
 			if (!IsProjectGeneratedFor(path, generator, out var missingFlag))
 				Debug.LogWarning($"You are trying to open {path} outside a generated project. This might cause problems with IntelliSense and debugging. To avoid this, you can change your .csproj preferences in Edit > Preferences > External Tools and enable {GetProjectGenerationFlagDescription(missingFlag)} generation.");
 
-			var solution = GetOrGenerateSolutionFile(generator);
+			// Performance optimization: Only sync if solution doesn't exist
+			var solution = GetOrGenerateSolutionFileIfNeeded(generator);
 			return installation.Open(path, line, column, solution);
 		}
 
@@ -297,5 +313,15 @@ namespace Microsoft.Unity.VisualStudio.Editor
 			generator.Sync();
 			return generator.SolutionFile();
 		}
+
+		// Performance optimization: Only sync if solution file doesn't exist
+		private static string GetOrGenerateSolutionFileIfNeeded(IGenerator generator)
+		{
+			if (!generator.HasSolutionBeenGenerated())
+			{
+				generator.Sync();
+			}
+			return generator.SolutionFile();
+		}
 	}
 }

README.md

@@ -1,8 +1,13 @@
-# How to install
+## How to install
-<br>
+- Unity -> Window -> Package Manager  
-- Unity->Window->Package Manager<br>
+- Click "+" at the top left corner  
-- Click "+" left corner<br>
+- Add package from git URL  
-- Add package from git URL<br>
+- Insert `https://github.com/boxqkrtm/com.unity.ide.cursor.git`  
-- Insert <code>https://github.com/boxqkrtm/com.unity.ide.cursor.git</code><br>
+- Add  
-- Add<br>
 - Done
+
+> **Important Notice for Users Updating from Older Versions**  
+> Starting from version **v2.0.24**, the package name has been changed from  
+> `com.unity.ide.cursor` to `com.boxqkrtm.ide.cursor` to prevent potential issues with Unity regarding attribution.  
+> Violating these attribution rules may trigger warnings in Unity.  
+> If you experience errors during the update, please remove the existing package before reinstalling the new one to avoid conflicts.

package.json

@@ -1,14 +1,14 @@
 {
-  "name": "com.unity.ide.cursor",
+  "name": "com.boxqkrtm.ide.cursor",
   "displayName": "Cursor Editor",
   "description": "Cursor editor integration for supporting Cursor as code editor for unity. Adds support for generating csproj files for intellisense purposes, auto discovery of installations, etc.",
-  "version": "2.0.23",
+  "version": "2.0.28",
   "unity": "2019.4",
   "unityRelease": "25f1",
   "dependencies": {
     "com.unity.test-framework": "1.1.9"
   },
   "_upm": {
-    "changelog": "Integration:\n\n- Add support for Cursor"
+    "changelog": "Integration:\n\n- Add Multiple or Single Cursor Instance Options"
   }
 }