ninxsoft · ninxsoft · Sep 21, 2025 · Sep 21, 2025 · Sep 21, 2025 · Sep 21, 2025
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
@@ -10,9 +10,9 @@ on:
 jobs:
   build:
     name: Build
-    runs-on: macos-14
+    runs-on: macos-15
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: swift-actions/setup-swift@v2
       - name: Install Apple Developer ID Application Certificate
         env:
@@ -30,7 +30,9 @@ jobs:
           security set-keychain-settings -lut 21600 "$KEYCHAIN_PATH"
           security unlock-keychain -p "$APPLE_DEVELOPER_KEYCHAIN_PASSWORD" "$KEYCHAIN_PATH"
           security import "$APPLE_DEVELOPER_ID_APPLICATION_CERTIFICATE_PATH" -P "$APPLE_DEVELOPER_ID_APPLICATION_CERTIFICATE_PASSWORD" -A -t cert -f pkcs12 -k "$KEYCHAIN_PATH"
-          security import "$APPLE_DEVELOPER_CERTIFICATE_AUTHORITY_PATH" -P "$APPLE_DEVELOPER_CERTIFICATE_PASSWORD" -A -t cert -f pkcs7 -k "$KEYCHAIN_PATH"
+          if ! security find-certificate -c "Developer ID Certification Authority" "$KEYCHAIN_PATH" ; then
+            security import "$APPLE_DEVELOPER_CERTIFICATE_AUTHORITY_PATH" -P "$APPLE_DEVELOPER_CERTIFICATE_PASSWORD" -A -t cert -f pkcs7 -k "$KEYCHAIN_PATH"
+          fi
           security list-keychain -d user -s "$KEYCHAIN_PATH"
       - name: Build mist
         run: swift build --configuration release --arch arm64 --arch x86_64

diff --git a/.github/workflows/draft_new_release.yml b/.github/workflows/draft_new_release.yml
@@ -3,7 +3,7 @@ on: workflow_dispatch
 jobs:
   build:
     name: Draft New Release
-    runs-on: macos-14
+    runs-on: macos-15
     env:
       APPLE_DEVELOPER_ID_APPLICATION_CERTIFICATE: ${{ secrets.APPLE_DEVELOPER_ID_APPLICATION_CERTIFICATE }}
       APPLE_DEVELOPER_ID_APPLICATION_CERTIFICATE_PASSWORD: ${{ secrets.APPLE_DEVELOPER_ID_APPLICATION_CERTIFICATE_PASSWORD }}
@@ -18,7 +18,7 @@ jobs:
       APPLE_DEVELOPER_TEAM_ID: "7K3HVCLV7Z"
       KEYCHAIN_FILE: "apple-developer.keychain-db"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: swift-actions/setup-swift@v2
       - name: Install Apple Developer ID Certificates
         run: |
@@ -33,7 +33,9 @@ jobs:
           security unlock-keychain -p "$APPLE_DEVELOPER_KEYCHAIN_PASSWORD" "$RUNNER_TEMP/$KEYCHAIN_FILE"
           security import "$APPLE_DEVELOPER_ID_APPLICATION_CERTIFICATE_PATH" -P "$APPLE_DEVELOPER_ID_APPLICATION_CERTIFICATE_PASSWORD" -A -t cert -f pkcs12 -k "$RUNNER_TEMP/$KEYCHAIN_FILE"
           security import "$APPLE_DEVELOPER_ID_INSTALLER_CERTIFICATE_PATH" -P "$APPLE_DEVELOPER_ID_INSTALLER_CERTIFICATE_PASSWORD" -A -t cert -f pkcs12 -k "$RUNNER_TEMP/$KEYCHAIN_FILE"
-          security import "$APPLE_DEVELOPER_CERTIFICATE_AUTHORITY_PATH" -P "$APPLE_DEVELOPER_CERTIFICATE_PASSWORD" -A -t cert -f pkcs7 -k "$RUNNER_TEMP/$KEYCHAIN_FILE"
+          if ! security find-certificate -c "Developer ID Certification Authority" "$RUNNER_TEMP/$KEYCHAIN_FILE" ; then
+            security import "$APPLE_DEVELOPER_CERTIFICATE_AUTHORITY_PATH" -P "$APPLE_DEVELOPER_CERTIFICATE_PASSWORD" -A -t cert -f pkcs7 -k "$RUNNER_TEMP/$KEYCHAIN_FILE"
+          fi
           security list-keychain -d user -s "$RUNNER_TEMP/$KEYCHAIN_FILE"
       - name: Build mist
         run: swift build --configuration release --arch arm64 --arch x86_64

diff --git a/.github/workflows/linting.yml b/.github/workflows/linting.yml
@@ -10,11 +10,11 @@ on:
 jobs:
   linting:
     name: Linting
-    runs-on: macos-14
+    runs-on: macos-15
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: swift-actions/setup-swift@v2
-      - uses: sinoru/actions-swiftlint@v6
+      - uses: m-takuma/setup-swiftlint@1.0.0
       - name: Print SwiftLint version
         run: swiftlint --version
       - name: Run SwiftLint

diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
@@ -10,9 +10,9 @@ on:
 jobs:
   unit_tests:
     name: Unit Tests
-    runs-on: macos-14
+    runs-on: macos-15
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: swift-actions/setup-swift@v2
       - name: Run Unit Tests
         run: swift test
diff --git a/Mist/Commands/Download/DownloadFirmwareOptions.swift b/Mist/Commands/Download/DownloadFirmwareOptions.swift
@@ -13,6 +13,7 @@ struct DownloadFirmwareOptions: ParsableArguments {
 
     Name           │ Version │ Build
     ───────────────┼─────────┼──────
+    macOS Tahoe    | 26.x    │ 25xyz
     macOS Sequoia  | 15.x    │ 24xyz
     macOS Sonoma   │ 14.x    │ 23xyz
     macOS Ventura  │ 13.x    │ 22xyz

diff --git a/Mist/Commands/Download/DownloadInstallerOptions.swift b/Mist/Commands/Download/DownloadInstallerOptions.swift
@@ -13,6 +13,7 @@ struct DownloadInstallerOptions: ParsableArguments {
 
     Name               │ Version │ Build
     ───────────────────┼─────────┼──────
+    macOS Tahoe        │ 26.x    │ 25xyz
     macOS Sequoia      │ 15.x    │ 24xyz
     macOS Sonoma       │ 14.x    │ 23xyz
     macOS Ventura      │ 13.x    │ 22xyz

diff --git a/Mist/Commands/List/ListFirmwareOptions.swift b/Mist/Commands/List/ListFirmwareOptions.swift
@@ -13,6 +13,7 @@ struct ListFirmwareOptions: ParsableArguments {
 
     Name           │ Version │ Build
     ───────────────┼─────────┼──────
+    macOS Tahoe    │ 26.x    │ 25xyz
     macOS Sequoia  │ 15.x    │ 24xyz
     macOS Sonoma   │ 14.x    │ 23xyz
     macOS Ventura  │ 13.x    │ 22xyz

diff --git a/Mist/Commands/List/ListInstallerOptions.swift b/Mist/Commands/List/ListInstallerOptions.swift
@@ -13,6 +13,7 @@ struct ListInstallerOptions: ParsableArguments {
 
     Name               │ Version │ Build
     ───────────────────┼─────────┼──────
+    macOS Tahoe        │ 26.x    │ 25xyz
     macOS Sequoia      │ 15.x    │ 24xyz
     macOS Sonoma       │ 14.x    │ 23xyz
     macOS Ventura      │ 13.x    │ 22xyz

diff --git a/Mist/Extensions/Sequence+Extension.swift b/Mist/Extensions/Sequence+Extension.swift
@@ -10,6 +10,7 @@ import Yams
 
 extension Sequence where Iterator.Element == [String: Any] {
     // swiftlint:disable function_body_length
+
     /// Returns an ASCII-formatted table string for the provided array of `Firmware` dictionaries.
     ///
     /// - Parameters:
@@ -90,6 +91,7 @@ extension Sequence where Iterator.Element == [String: Any] {
     // swiftlint:enable function_body_length
 
     // swiftlint:disable function_body_length
+
     /// Returns an ASCII-formatted table string for the provided array of `Installer` dictionaries.
     ///
     /// - Parameters:

diff --git a/Mist/Helpers/InstallerCreator.swift b/Mist/Helpers/InstallerCreator.swift
@@ -9,6 +9,8 @@ import Foundation
 
 /// Helper Struct used to install macOS Installers.
 enum InstallerCreator {
+    // swiftlint:disable function_body_length
+
     /// Creates a recently downloaded macOS Installer.
     ///
     /// - Parameters:
@@ -55,14 +57,20 @@ enum InstallerCreator {
             let arguments: [String] = ["hdiutil", "detach", legacyDiskImageMountPointURL.path, "-force"]
             _ = try Shell.execute(arguments)
         } else {
-            guard let url: URL = URL(string: installer.distribution) else {
-                throw MistError.invalidURL(installer.distribution)
-            }
+            !options.quiet ? PrettyPrint.print("Creating new installer '\(installer.temporaryInstallerURL.path)'...", noAnsi: options.noAnsi) : Mist.noop()
 
-            let distributionURL: URL = temporaryURL.appendingPathComponent(url.lastPathComponent)
+            if installer.containsInstallAssistantPackage {
+                let installAssistantPackageURL: URL = temporaryURL.appendingPathComponent("InstallAssistant.pkg")
+                arguments = ["installer", "-pkg", installAssistantPackageURL.path, "-target", installer.temporaryDiskImageMountPointURL.path]
+            } else {
+                guard let url: URL = URL(string: installer.distribution) else {
+                    throw MistError.invalidURL(installer.distribution)
+                }
+
+                let distributionURL: URL = temporaryURL.appendingPathComponent(url.lastPathComponent)
+                arguments = ["installer", "-pkg", distributionURL.path, "-target", installer.temporaryDiskImageMountPointURL.path]
+            }
 
-            !options.quiet ? PrettyPrint.print("Creating new installer '\(installer.temporaryInstallerURL.path)'...", noAnsi: options.noAnsi) : Mist.noop()
-            arguments = ["installer", "-pkg", distributionURL.path, "-target", installer.temporaryDiskImageMountPointURL.path]
             let variables: [String: String] = ["CM_BUILD": "CM_BUILD"]
             _ = try Shell.execute(arguments, environment: variables)
         }
@@ -80,4 +88,6 @@ enum InstallerCreator {
 
         !options.quiet ? PrettyPrint.print("Created new installer '\(installer.temporaryInstallerURL.path)'", noAnsi: options.noAnsi) : Mist.noop()
     }
+
+    // swiftlint:enable function_body_length
 }
diff --git a/Mist/Model/Catalog.swift b/Mist/Model/Catalog.swift
@@ -12,20 +12,11 @@ enum Catalog: String, CaseIterable {
     case `public`
 
     static var urls: [String] {
-        allCases.map(\.url) + allCases.map(\.sequoiaURL)
+        allCases.map(\.sequoiaURL) + allCases.map(\.tahoeURL)
     }
 
     var url: String {
-        switch self {
-        case .standard:
-            "https://swscan.apple.com/content/catalogs/others/index-14-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz"
-        case .customer:
-            "https://swscan.apple.com/content/catalogs/others/index-14customerseed-14-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz"
-        case .developer:
-            "https://swscan.apple.com/content/catalogs/others/index-14seed-14-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz"
-        case .public:
-            "https://swscan.apple.com/content/catalogs/others/index-14beta-14-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz"
-        }
+        sequoiaURL
     }
 
     private var sequoiaURL: String {
@@ -40,4 +31,17 @@ enum Catalog: String, CaseIterable {
             "https://swscan.apple.com/content/catalogs/others/index-15beta-15-14-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz"
         }
     }
+
+    private var tahoeURL: String {
+        switch self {
+        case .standard:
+            "https://swscan.apple.com/content/catalogs/others/index-26-15-14-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz"
+        case .customer: // swiftlint:disable:next line_length
+            "https://swscan.apple.com/content/catalogs/others/index-26customerseed-26-15-14-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz"
+        case .developer:
+            "https://swscan.apple.com/content/catalogs/others/index-26seed-26-15-14-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz"
+        case .public:
+            "https://swscan.apple.com/content/catalogs/others/index-26beta-26-15-14-13-12-10.16-10.15-10.14-10.13-10.12-10.11-10.10-10.9-mountainlion-lion-snowleopard-leopard.merged-1.sucatalog.gz"
+        }
+    }
 }
diff --git a/Mist/Model/Firmware.swift b/Mist/Model/Firmware.swift
@@ -29,7 +29,9 @@ struct Firmware: Decodable {
     var name: String {
         var name: String = ""
 
-        if version.range(of: "^15", options: .regularExpression) != nil {
+        if version.range(of: "^26", options: .regularExpression) != nil {
+            name = "macOS Tahoe"
+        } else if version.range(of: "^15", options: .regularExpression) != nil {
             name = "macOS Sequoia"
         } else if version.range(of: "^14", options: .regularExpression) != nil {
             name = "macOS Sonoma"

diff --git a/Mist/Model/Installer.swift b/Mist/Model/Installer.swift
@@ -561,6 +561,10 @@ struct Installer: Decodable {
         (sierraOrOlder ? [] : [Package(url: distribution, size: 0, integrityDataURL: nil, integrityDataSize: nil)]) + packages.sorted { $0.filename < $1.filename }
     }
 
+    var containsInstallAssistantPackage: Bool {
+        packages.contains { $0.filename == "InstallAssistant.pkg" }
+    }
+
     var temporaryDiskImageMountPointURL: URL {
         URL(fileURLWithPath: "/Volumes/\(identifier)")
     }
@@ -615,7 +619,7 @@ struct Installer: Decodable {
     }
 
     var bigSurOrNewer: Bool {
-        version.range(of: "^1[1-9]\\.", options: .regularExpression) != nil
+        version.range(of: "^(1[1-5]|26)\\.", options: .regularExpression) != nil
     }
 
     var beta: Bool {