[pull] main from github:main

.agent-plugin/.acp.json

@@ -0,0 +1,20 @@
+{
+  "github-copilot": {
+    "distribution": {
+      "binary": {
+        "darwin-aarch64": {
+          "archive": "https://github.com/github/copilot-cli/releases/download/v1.0.78/copilot-darwin-arm64.tar.gz",
+          "cmd": "./copilot",
+          "args": ["--acp"],
+          "env": {}
+        }
+      }
+    },
+    "extendedFeatures": {
+      "userConfigFile": {
+        "path": "~/.copilot/settings.json",
+        "description": "GitHub Copilot configuration and authentication credentials. Populated automatically by `copilot login`; set `store_token_plaintext: true` and add a token under `copilot_tokens` to supply credentials without an interactive session."
+      }
+    }
+  }
+}

.agent-plugin/plugin.json

@@ -0,0 +1,17 @@
+{
+  "name": "GitHub Copilot",
+  "slug": "github-copilot",
+  "description": "GitHub's AI pair programmer",
+  "version": "0.1.0",
+  "author": {
+    "name": "GitHub",
+    "url": "https://github.com/github"
+  },
+  "repository": "https://github.com/github/CopilotForXcode",
+  "homepage": "https://github.com/features/copilot/",
+  "license": "proprietary",
+  "icon": "https://raw.githubusercontent.com/github/CopilotForXcode/main/.agent-plugin/icon.svg",
+  "tags": ["copilot", "github", "acp", "ai-assistant"],
+  "category": "ai-agent",
+  "platforms": ["darwin-aarch64"]
+}

.github/workflows/codeql.yml

@@ -27,6 +27,10 @@ jobs:
       fail-fast: false
       matrix:
         include:
+        - language: actions
+          build-mode: none
+        - language: javascript-typescript
+          build-mode: none
         - language: python
           build-mode: none
         - language: swift
@@ -37,7 +41,7 @@ jobs:
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v3
+      uses: github/codeql-action/init@v4
       with:
         languages: ${{ matrix.language }}
         build-mode: ${{ matrix.build-mode }}
@@ -66,6 +70,6 @@ jobs:
           CODE_SIGNING_ALLOWED="NO"
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v3
+      uses: github/codeql-action/analyze@v4
       with:
         category: "/language:${{matrix.language}}"

CHANGELOG.md

@@ -5,6 +5,51 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 0.51.0 - August 12, 2026
+### Added
+- Support for Kimi K3 through the updated Copilot language server.
+- Agent Client Protocol (ACP) plugin metadata for GitHub Copilot.
+
+### Changed
+- Updated the Copilot language server from 1.488.0 to 1.523.3.
+- Updated the ACP plugin to use Copilot CLI 1.0.78.
+
+### Fixed
+- Fixed model pricing tooltips for the latest token pricing metadata.
+
+## 0.50.0 - May 20, 2026
+### Added
+- Reasoning effort control for supported models: Low, Medium, or High from the model picker to balance response speed and quality.
+- Added internal support for upcoming usage-based billing, including billing updates for the usage panel, usage notifications, and model picker. This will be visible to the user once usage-based billing rolls out.
+
+### Changed
+- Bring Your Own Key (BYOK) is now generally available.
+
+## 0.49.0 - May 15, 2026
+### Added
+- Native Anthropic Messages API (`/v1/messages`) endpoint support.
+- Thinking support in chat for reasoning-capable models.
+- Enhanced rate limit notifications and error messages.
+
+### Changed
+- Refined tool call item UI in agent progress: removed border and divider, repositioned chevron, and adjusted spacing for better readability.
+- Updated Copilot language server to 1.465.5.
+
+## 0.48.0 - April 23, 2026
+### Added
+- Context window usage details in chat, including a token breakdown for system instructions, messages, attached files, and tool results.
+- Auto Compress setting to compact conversation history and save context tokens.
+- Install flow for Xcode's built-in MCP server from settings.
+
+### Changed
+- Custom agents and the Auto model are now generally available.
+- Removed support for macOS 12.
+- Improved UI for model picker tooltips.
+
+### Fixed
+- Fixed an issue where GPT-5.4 requests could return a 400 error.
+- Fixed an issue where the MCP allowlist did not work correctly.
+
 ## 0.47.0 - February 4, 2026
 ### Added
 - Auto approval for MCP tools, sensitive files, and terminal commands.

CommunicationBridge/ServiceDelegate.swift

@@ -175,7 +175,7 @@ actor ExtensionServiceLauncher {
                                     return configuration
                                 }()
                             ) { app, error in
-                                if let error = error {
+                                if error != nil {
                                     continuation.resume(returning: nil)
                                 } else {
                                     continuation.resume(returning: app)

Copilot for Xcode.xcodeproj/project.pbxproj

@@ -845,7 +845,7 @@
 					"@executable_path/../Frameworks",
 					"@executable_path/../../../../Frameworks",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				MARKETING_VERSION = "$(APP_VERSION)";
 				PRODUCT_BUNDLE_IDENTIFIER = "$(BUNDLE_IDENTIFIER_BASE).EditorExtension";
 				PRODUCT_NAME = Copilot;
@@ -874,7 +874,7 @@
 					"@executable_path/../Frameworks",
 					"@executable_path/../../../../Frameworks",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				MARKETING_VERSION = "$(APP_VERSION)";
 				PRODUCT_BUNDLE_IDENTIFIER = "$(BUNDLE_IDENTIFIER_BASE).EditorExtension";
 				PRODUCT_NAME = Copilot;
@@ -936,7 +936,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				ONLY_ACTIVE_ARCH = YES;
@@ -991,7 +991,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				SDKROOT = macosx;
@@ -1022,7 +1022,7 @@
 					"$(inherited)",
 					"@executable_path/../Frameworks",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				MARKETING_VERSION = "$(APP_VERSION)";
 				PRODUCT_BUNDLE_IDENTIFIER = "$(BUNDLE_IDENTIFIER_BASE)";
 				PRODUCT_MODULE_NAME = Copilot_for_Xcode;
@@ -1056,7 +1056,7 @@
 					"$(inherited)",
 					"@executable_path/../Frameworks",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				MARKETING_VERSION = "$(APP_VERSION)";
 				PRODUCT_BUNDLE_IDENTIFIER = "$(BUNDLE_IDENTIFIER_BASE)";
 				PRODUCT_NAME = "$(HOST_APP_NAME)";
@@ -1072,7 +1072,7 @@
 				CODE_SIGN_STYLE = Automatic;
 				DEVELOPMENT_TEAM = VEKTX9H2N7;
 				ENABLE_HARDENED_RUNTIME = YES;
-				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 				SWIFT_VERSION = 5.0;
@@ -1087,7 +1087,7 @@
 				DEVELOPMENT_TEAM = "";
 				"DEVELOPMENT_TEAM[sdk=macosx*]" = VEKTX9H2N7;
 				ENABLE_HARDENED_RUNTIME = YES;
-				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";
 				SKIP_INSTALL = YES;
@@ -1117,7 +1117,7 @@
 					"$(inherited)",
 					"@executable_path/../Frameworks",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				MARKETING_VERSION = "$(APP_VERSION)";
 				PRODUCT_BUNDLE_IDENTIFIER = "$(BUNDLE_IDENTIFIER_BASE).ExtensionService";
 				PRODUCT_NAME = "$(EXTENSION_SERVICE_NAME)";
@@ -1151,7 +1151,7 @@
 					"$(inherited)",
 					"@executable_path/../Frameworks",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				MARKETING_VERSION = "$(APP_VERSION)";
 				PRODUCT_BUNDLE_IDENTIFIER = "$(BUNDLE_IDENTIFIER_BASE).ExtensionService";
 				PRODUCT_NAME = "$(EXTENSION_SERVICE_NAME)";
@@ -1172,7 +1172,7 @@
 				ENABLE_USER_SCRIPT_SANDBOXING = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu17;
 				LOCALIZATION_PREFERS_STRING_CATALOGS = YES;
-				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				PRODUCT_BUNDLE_IDENTIFIER = "$(BUNDLE_IDENTIFIER_BASE).CommunicationBridge";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
@@ -1193,7 +1193,7 @@
 				ENABLE_USER_SCRIPT_SANDBOXING = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu17;
 				LOCALIZATION_PREFERS_STRING_CATALOGS = YES;
-				MACOSX_DEPLOYMENT_TARGET = 12.0;
+				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				PRODUCT_BUNDLE_IDENTIFIER = "$(BUNDLE_IDENTIFIER_BASE).CommunicationBridge";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "";

Copilot for Xcode/App.swift

@@ -26,19 +26,15 @@ class AppDelegate: NSObject, NSApplicationDelegate {
     }
 
     func applicationDidFinishLaunching(_ notification: Notification) {
-        if #available(macOS 13.0, *) {
-            checkBackgroundPermissions()
-        }
-
+        checkBackgroundPermissions()
+
         let launchMode = determineLaunchMode()
         handleLaunchMode(launchMode)
     }
 
     func applicationShouldHandleReopen(_ sender: NSApplication, hasVisibleWindows flag: Bool) -> Bool {
-        if #available(macOS 13.0, *) {
-            checkBackgroundPermissions()
-        }
-
+        checkBackgroundPermissions()
+
         let launchMode = determineLaunchMode()
         handleLaunchMode(launchMode)
         return true
@@ -113,7 +109,6 @@ class AppDelegate: NSObject, NSApplicationDelegate {
         }
     }
 
-    @available(macOS 13.0, *)
     private func checkBackgroundPermissions() {
         Task {
             // Direct check of permission status
@@ -122,15 +117,17 @@ class AppDelegate: NSObject, NSApplicationDelegate {
 
             if !isPermissionGranted {
                 // Only show alert if permission isn't granted
-                DispatchQueue.main.async {
+                await MainActor.run {
                     if !self.permissionAlertShown {
                         showBackgroundPermissionAlert()
                         self.permissionAlertShown = true
                     }
                 }
             } else {
                 // Permission is granted, reset flag
-                self.permissionAlertShown = false
+                await MainActor.run {
+                    self.permissionAlertShown = false
+                }
             }
         }
     }
@@ -147,7 +144,7 @@ class AppDelegate: NSObject, NSApplicationDelegate {
 
         // Start cleanup in background without waiting
         Task {
-            let quitTask = Task {
+            _ = Task {
                 let service = try? getService()
                 try? await service?.quitService()
             }
@@ -272,10 +269,8 @@ func activateAndOpenSettings() {
     if #available(macOS 14.0, *) {
         let environment = SettingsEnvironment()
         environment.open()
-    } else if #available(macOS 13.0, *) {
-        NSApp.sendAction(Selector(("showSettingsWindow:")), to: nil, from: nil)
     } else {
-        NSApp.sendAction(Selector(("showPreferencesWindow:")), to: nil, from: nil)
+        NSApp.sendAction(Selector(("showSettingsWindow:")), to: nil, from: nil)
     }
 }
 

Core/Package.swift

@@ -8,7 +8,7 @@ import PackageDescription
 
 let package = Package(
     name: "Core",
-    platforms: [.macOS(.v12)],
+    platforms: [.macOS(.v13)],
     products: [
         .library(
             name: "Service",
@@ -75,6 +75,7 @@ let package = Package(
             dependencies: [
                 "SuggestionWidget",
                 "SuggestionService",
+                "SuggestionInjector",
                 "ChatService",
                 "PromptToCodeService",
                 "ConversationTab",
@@ -123,6 +124,7 @@ let package = Package(
                     "Client",
                     "LaunchAgentManager",
                     "GitHubCopilotViewModel",
+                    "UpdateChecker",
                     .product(name: "SuggestionProvider", package: "Tool"),
                     .product(name: "Toast", package: "Tool"),
                     .product(name: "SharedUIComponents", package: "Tool"),
@@ -202,6 +204,7 @@ let package = Package(
                 name: "ConversationTab",
                 dependencies: [
                     "ChatService",
+                    "GitHubCopilotViewModel",
                     .product(name: "SharedUIComponents", package: "Tool"),
                     .product(name: "ChatAPIService", package: "Tool"),
                     .product(name: "Logger", package: "Tool"),
@@ -225,6 +228,7 @@ let package = Package(
                     "ConversationTab",
                     "GitHubCopilotViewModel",
                     "PersistMiddleware",
+                    .product(name: "CGEventOverride", package: "CGEventOverride"),
                     .product(name: "GitHubCopilotService", package: "Tool"),
                     .product(name: "Toast", package: "Tool"),
                     .product(name: "UserDefaultsObserver", package: "Tool"),
@@ -265,6 +269,7 @@ let package = Package(
                 .product(name: "GitHubCopilotService", package: "Tool"),
                 .product(name: "ComposableArchitecture", package: "swift-composable-architecture"),
                 .product(name: "Status", package: "Tool"),
+                .product(name: "Logger", package: "Tool"),
             ]
         ),