Merge pull request #1268 from Ryex/feat/launcher-updater

Feat: Windows (And portable linux / appimage) Auto Updater
2023-10-16 19:53:50 +02:00 · 2023-10-16 19:53:50 +02:00 · 436db23ffc
commit 436db23ffc
parent 0927035a26 ef0813754b
41 changed files with 3430 additions and 136 deletions
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@ -37,65 +37,64 @@ jobs:
      fail-fast: false
      matrix:
        include:
-
          - os: ubuntu-20.04
            qt_ver: 5

          - os: ubuntu-20.04
            qt_ver: 6
            qt_host: linux
-            qt_arch: ''
-            qt_version: '6.2.4'
-            qt_modules: 'qt5compat qtimageformats'
-            qt_tools: ''
+            qt_arch: ""
+            qt_version: "6.2.4"
+            qt_modules: "qt5compat qtimageformats"
+            qt_tools: ""

          - os: windows-2022
            name: "Windows-MinGW-w64"
            msystem: clang64
-            vcvars_arch: 'amd64_x86'
+            vcvars_arch: "amd64_x86"

          - os: windows-2022
            name: "Windows-MSVC"
-            msystem: ''
-            architecture: 'x64'
-            vcvars_arch: 'amd64'
+            msystem: ""
+            architecture: "x64"
+            vcvars_arch: "amd64"
            qt_ver: 6
            qt_host: windows
-            qt_arch: ''
-            qt_version: '6.5.2'
-            qt_modules: 'qt5compat qtimageformats'
-            qt_tools: ''
+            qt_arch: ""
+            qt_version: "6.5.2"
+            qt_modules: "qt5compat qtimageformats"
+            qt_tools: ""

          - os: windows-2022
            name: "Windows-MSVC-arm64"
-            msystem: ''
-            architecture: 'arm64'
-            vcvars_arch: 'amd64_arm64'
+            msystem: ""
+            architecture: "arm64"
+            vcvars_arch: "amd64_arm64"
            qt_ver: 6
            qt_host: windows
-            qt_arch: 'win64_msvc2019_arm64'
-            qt_version: '6.5.2'
-            qt_modules: 'qt5compat qtimageformats'
-            qt_tools: ''
+            qt_arch: "win64_msvc2019_arm64"
+            qt_version: "6.5.2"
+            qt_modules: "qt5compat qtimageformats"
+            qt_tools: ""

          - os: macos-12
            name: macOS
            macosx_deployment_target: 11.0
            qt_ver: 6
            qt_host: mac
-            qt_arch: ''
-            qt_version: '6.5.2'
-            qt_modules: 'qt5compat qtimageformats'
-            qt_tools: ''
+            qt_arch: ""
+            qt_version: "6.5.2"
+            qt_modules: "qt5compat qtimageformats"
+            qt_tools: ""

          - os: macos-12
            name: macOS-Legacy
            macosx_deployment_target: 10.13
            qt_ver: 5
            qt_host: mac
-            qt_version: '5.15.2'
-            qt_modules: ''
-            qt_tools: ''
+            qt_version: "5.15.2"
+            qt_modules: ""
+            qt_tools: ""

    runs-on: ${{ matrix.os }}

@ -115,9 +114,9 @@ jobs:
      - name: Checkout
        uses: actions/checkout@v4
        with:
-          submodules: 'true'
+          submodules: "true"

-      - name: 'Setup MSYS2'
+      - name: "Setup MSYS2"
        if: runner.os == 'Windows' && matrix.msystem != ''
        uses: msys2/setup-msys2@v2
        with:
@ -202,12 +201,12 @@ jobs:
        if: runner.os == 'Windows' && matrix.architecture == 'arm64'
        uses: jurplel/install-qt-action@v3
        with:
-           aqtversion: '==3.1.*'
-           py7zrversion: '>=0.20.2'
+          aqtversion: "==3.1.*"
+          py7zrversion: ">=0.20.2"
          version: ${{ matrix.qt_version }}
-           host: 'windows'
-           target: 'desktop'
-           arch: ''
+          host: "windows"
+          target: "desktop"
+          arch: ""
          modules: ${{ matrix.qt_modules }}
          tools: ${{ matrix.qt_tools }}
          cache: ${{ inputs.is_qt_cached }}
@ -219,11 +218,11 @@ jobs:
        if: runner.os == 'Linux' && matrix.qt_ver == 6 || runner.os == 'macOS' || (runner.os == 'Windows' && matrix.msystem == '')
        uses: jurplel/install-qt-action@v3
        with:
-           aqtversion: '==3.1.*'
-           py7zrversion: '>=0.20.2'
+          aqtversion: "==3.1.*"
+          py7zrversion: ">=0.20.2"
          version: ${{ matrix.qt_version }}
          host: ${{ matrix.qt_host }}
-           target: 'desktop'
+          target: "desktop"
          arch: ${{ matrix.qt_arch }}
          modules: ${{ matrix.qt_modules }}
          tools: ${{ matrix.qt_tools }}
@ -271,12 +270,12 @@ jobs:
        if: runner.os == 'Windows' && matrix.msystem != ''
        shell: msys2 {0}
        run: |
-          cmake -S . -B ${{ env.BUILD_DIR }} -DCMAKE_INSTALL_PREFIX=${{ env.INSTALL_DIR }} -DCMAKE_BUILD_TYPE=${{ inputs.build_type }} -DENABLE_LTO=ON -DLauncher_BUILD_PLATFORM=official -DCMAKE_C_COMPILER_LAUNCHER=${{ env.CCACHE_VAR }} -DCMAKE_CXX_COMPILER_LAUNCHER=${{ env.CCACHE_VAR }} -DLauncher_QT_VERSION_MAJOR=6 -DCMAKE_OBJDUMP=/mingw64/bin/objdump.exe -G Ninja
+          cmake -S . -B ${{ env.BUILD_DIR }} -DCMAKE_INSTALL_PREFIX=${{ env.INSTALL_DIR }} -DCMAKE_BUILD_TYPE=${{ inputs.build_type }} -DENABLE_LTO=ON -DLauncher_BUILD_PLATFORM=official -DCMAKE_C_COMPILER_LAUNCHER=${{ env.CCACHE_VAR }} -DCMAKE_CXX_COMPILER_LAUNCHER=${{ env.CCACHE_VAR }} -DLauncher_QT_VERSION_MAJOR=6 -DCMAKE_OBJDUMP=/mingw64/bin/objdump.exe -DLauncher_BUILD_ARTIFACT=${{ matrix.name }}-Qt${{ matrix.qt_ver }} -G Ninja

      - name: Configure CMake (Windows MSVC)
        if: runner.os == 'Windows' && matrix.msystem == ''
        run: |
-          cmake -S . -B ${{ env.BUILD_DIR }} -DCMAKE_INSTALL_PREFIX=${{ env.INSTALL_DIR }} -DCMAKE_BUILD_TYPE=${{ inputs.build_type }} -DENABLE_LTO=ON -DLauncher_BUILD_PLATFORM=official -DLauncher_QT_VERSION_MAJOR=${{ matrix.qt_ver }} -DCMAKE_MSVC_RUNTIME_LIBRARY="MultiThreadedDLL" -A${{ matrix.architecture}} -DLauncher_FORCE_BUNDLED_LIBS=ON
+          cmake -S . -B ${{ env.BUILD_DIR }} -DCMAKE_INSTALL_PREFIX=${{ env.INSTALL_DIR }} -DCMAKE_BUILD_TYPE=${{ inputs.build_type }} -DENABLE_LTO=ON -DLauncher_BUILD_PLATFORM=official -DLauncher_QT_VERSION_MAJOR=${{ matrix.qt_ver }} -DCMAKE_MSVC_RUNTIME_LIBRARY="MultiThreadedDLL" -A${{ matrix.architecture}} -DLauncher_FORCE_BUNDLED_LIBS=ON  -DLauncher_BUILD_ARTIFACT=${{ matrix.name }}-Qt${{ matrix.qt_ver }}
          # https://github.com/ccache/ccache/wiki/MS-Visual-Studio (I coudn't figure out the compiler prefix)
          if ("${{ env.CCACHE_VAR }}")
          {
@ -291,7 +290,7 @@ jobs:
      - name: Configure CMake (Linux)
        if: runner.os == 'Linux'
        run: |
-          cmake -S . -B ${{ env.BUILD_DIR }} -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=${{ inputs.build_type }} -DENABLE_LTO=ON -DLauncher_BUILD_PLATFORM=official -DCMAKE_C_COMPILER_LAUNCHER=${{ env.CCACHE_VAR }} -DCMAKE_CXX_COMPILER_LAUNCHER=${{ env.CCACHE_VAR }} -DLauncher_QT_VERSION_MAJOR=${{ matrix.qt_ver }} -G Ninja
+          cmake -S . -B ${{ env.BUILD_DIR }} -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=${{ inputs.build_type }} -DENABLE_LTO=ON -DLauncher_BUILD_PLATFORM=official -DCMAKE_C_COMPILER_LAUNCHER=${{ env.CCACHE_VAR }} -DCMAKE_CXX_COMPILER_LAUNCHER=${{ env.CCACHE_VAR }} -DLauncher_QT_VERSION_MAJOR=${{ matrix.qt_ver }} -DLauncher_BUILD_ARTIFACT=Linux-Qt${{ matrix.qt_ver }} -G Ninja

      ##
      # BUILD
@ -390,7 +389,6 @@ jobs:

          Get-ChildItem ${{ env.INSTALL_DIR }} -Recurse | ForEach FullName | Resolve-Path -Relative | %{ $_.TrimStart('.\') } | %{ $_.TrimStart('${{ env.INSTALL_DIR }}') } | %{ $_.TrimStart('\') } | Out-File -FilePath ${{ env.INSTALL_DIR }}/manifest.txt

-
      - name: Fetch codesign certificate (Windows)
        if: runner.os == 'Windows'
        shell: bash # yes, we are not using MSYS2 or PowerShell here
@ -403,7 +401,7 @@ jobs:
          if (Get-Content ./codesign.pfx){
            cd ${{ env.INSTALL_DIR }}
            # We ship the exact same executable for portable and non-portable editions, so signing just once is fine
-            SignTool sign /fd sha256 /td sha256 /f ../codesign.pfx /p '${{ secrets.WINDOWS_CODESIGN_PASSWORD }}' /tr http://timestamp.digicert.com prismlauncher.exe prismlauncher_filelink.exe
+            SignTool sign /fd sha256 /td sha256 /f ../codesign.pfx /p '${{ secrets.WINDOWS_CODESIGN_PASSWORD }}' /tr http://timestamp.digicert.com prismlauncher.exe prismlauncher_updater.exe prismlauncher_filelink.exe 
          } else {
            ":warning: Skipped code signing for Windows, as certificate was not present." >> $env:GITHUB_STEP_SUMMARY
          }
@ -495,15 +493,7 @@ jobs:
          export LD_LIBRARY_PATH

          chmod +x AppImageUpdate-x86_64.AppImage
-          ./AppImageUpdate-x86_64.AppImage --appimage-extract
-
-          mkdir -p ${{ env.INSTALL_APPIMAGE_DIR }}/usr/optional
-          mkdir -p ${{ env.INSTALL_APPIMAGE_DIR }}/usr/plugins
-
-          cp -r squashfs-root/usr/bin/* ${{ env.INSTALL_APPIMAGE_DIR }}/usr/bin
-          cp -r squashfs-root/usr/lib/* ${{ env.INSTALL_APPIMAGE_DIR }}/usr/lib
-          cp -r squashfs-root/usr/optional/* ${{ env.INSTALL_APPIMAGE_DIR }}/usr/optional
-          cp -r squashfs-root/usr/optional/* ${{ env.INSTALL_APPIMAGE_DIR }}/usr/plugins
+          cp AppImageUpdate-x86_64.AppImage ${{ env.INSTALL_APPIMAGE_DIR }}/usr/bin

          export UPDATE_INFORMATION="gh-releases-zsync|${{ github.repository_owner }}|${{ github.event.repository.name }}|latest|PrismLauncher-Linux-x86_64.AppImage.zsync" 

@ -557,14 +547,14 @@ jobs:
        if: runner.os == 'Linux' && matrix.qt_ver != 6
        uses: actions/upload-artifact@v3
        with:
-          name: PrismLauncher-${{ runner.os }}-${{ env.VERSION }}-${{ inputs.build_type }}
+          name: PrismLauncher-${{ runner.os }}-Qt5-${{ env.VERSION }}-${{ inputs.build_type }}
          path: PrismLauncher.tar.gz

      - name: Upload binary tarball (Linux, portable, Qt 5)
        if: runner.os == 'Linux' && matrix.qt_ver != 6
        uses: actions/upload-artifact@v3
        with:
-          name: PrismLauncher-${{ runner.os }}-Portable-${{ env.VERSION }}-${{ inputs.build_type }}
+          name: PrismLauncher-${{ runner.os }}-Qt5-Portable-${{ env.VERSION }}-${{ inputs.build_type }}
          path: PrismLauncher-portable.tar.gz

      - name: Upload binary tarball (Linux, Qt 6)
@ -611,7 +601,7 @@ jobs:
        uses: actions/checkout@v4
        if: inputs.build_type == 'Debug'
        with:
-          submodules: 'true'
+          submodules: "true"
      - name: Build Flatpak (Linux)
        if: inputs.build_type == 'Debug'
        uses: flatpak/flatpak-github-actions/flatpak-builder@v6
--- a/.github/workflows/trigger_builds.yml
+++ b/.github/workflows/trigger_builds.yml
@ -3,26 +3,25 @@ name: Build Application
 on:
  push:
    branches-ignore:
-      - 'renovate/**'
+      - "renovate/**"
    paths-ignore:
-      - '**.md'
-      - '**/LICENSE'
-      - 'flake.lock'
-      - 'packages/**'
-      - '.github/ISSUE_TEMPLATE/**'
-      - '.markdownlint**'
+      - "**.md"
+      - "**/LICENSE"
+      - "flake.lock"
+      - "packages/**"
+      - ".github/ISSUE_TEMPLATE/**"
+      - ".markdownlint**"
  pull_request:
    paths-ignore:
-      - '**.md'
-      - '**/LICENSE'
-      - 'flake.lock'
-      - 'packages/**'
-      - '.github/ISSUE_TEMPLATE/**'
-      - '.markdownlint**'
+      - "**.md"
+      - "**/LICENSE"
+      - "flake.lock"
+      - "packages/**"
+      - ".github/ISSUE_TEMPLATE/**"
+      - ".markdownlint**"
  workflow_dispatch:

 jobs:
-
  build_debug:
    name: Build Debug
    uses: ./.github/workflows/build.yml
@ -34,3 +33,5 @@ jobs:
      WINDOWS_CODESIGN_CERT: ${{ secrets.WINDOWS_CODESIGN_CERT }}
      WINDOWS_CODESIGN_PASSWORD: ${{ secrets.WINDOWS_CODESIGN_PASSWORD }}
      CACHIX_AUTH_TOKEN: ${{ secrets.CACHIX_AUTH_TOKEN }}
+      GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
+      GPG_PRIVATE_KEY_ID: ${{ secrets.GPG_PRIVATE_KEY_ID }}
--- a/.github/workflows/trigger_release.yml
+++ b/.github/workflows/trigger_release.yml
@ -17,6 +17,8 @@ jobs:
      WINDOWS_CODESIGN_CERT: ${{ secrets.WINDOWS_CODESIGN_CERT }}
      WINDOWS_CODESIGN_PASSWORD: ${{ secrets.WINDOWS_CODESIGN_PASSWORD }}
      CACHIX_AUTH_TOKEN: ${{ secrets.CACHIX_AUTH_TOKEN }}
+      GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
+      GPG_PRIVATE_KEY_ID: ${{ secrets.GPG_PRIVATE_KEY_ID }}

  create_release:
    needs: build_release
@ -40,8 +42,8 @@ jobs:
          mv ${{ github.workspace }}/PrismLauncher-source PrismLauncher-${{ env.VERSION }}
          mv PrismLauncher-Linux-Qt6-Portable*/PrismLauncher-portable.tar.gz PrismLauncher-Linux-Qt6-Portable-${{ env.VERSION }}.tar.gz
          mv PrismLauncher-Linux-Qt6*/PrismLauncher.tar.gz PrismLauncher-Linux-Qt6-${{ env.VERSION }}.tar.gz
-          mv PrismLauncher-Linux-Portable*/PrismLauncher-portable.tar.gz PrismLauncher-Linux-Portable-${{ env.VERSION }}.tar.gz
-          mv PrismLauncher-Linux*/PrismLauncher.tar.gz PrismLauncher-Linux-${{ env.VERSION }}.tar.gz
+          mv PrismLauncher-Linux-Qt5-Portable*/PrismLauncher-portable.tar.gz PrismLauncher-Linux-Qt5-Portable-${{ env.VERSION }}.tar.gz
+          mv PrismLauncher-Linux-Qt5*/PrismLauncher.tar.gz PrismLauncher-Linux-Qt5-${{ env.VERSION }}.tar.gz       
          mv PrismLauncher-*.AppImage/PrismLauncher-*.AppImage PrismLauncher-Linux-x86_64.AppImage
          mv PrismLauncher-*.AppImage.zsync/PrismLauncher-*.AppImage.zsync PrismLauncher-Linux-x86_64.AppImage.zsync
          mv PrismLauncher-macOS-Legacy*/PrismLauncher.tar.gz PrismLauncher-macOS-Legacy-${{ env.VERSION }}.tar.gz
@ -85,8 +87,8 @@ jobs:
          draft: true
          prerelease: false
          files: |
-            PrismLauncher-Linux-${{ env.VERSION }}.tar.gz
-            PrismLauncher-Linux-Portable-${{ env.VERSION }}.tar.gz
+            PrismLauncher-Linux-Qt5-${{ env.VERSION }}.tar.gz
+            PrismLauncher-Linux-Qt5-Portable-${{ env.VERSION }}.tar.gz
            PrismLauncher-Linux-x86_64.AppImage
            PrismLauncher-Linux-x86_64.AppImage.zsync
            PrismLauncher-Linux-Qt6-${{ env.VERSION }}.tar.gz
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -188,8 +188,11 @@ set(Launcher_VERSION_NAME4_COMMA "${Launcher_VERSION_MAJOR},${Launcher_VERSION_M
 # Build platform.
 set(Launcher_BUILD_PLATFORM "unknown" CACHE STRING "A short string identifying the platform that this build was built for. Only used to display in the about dialog.")

-# Channel list URL
-set(Launcher_UPDATER_BASE "" CACHE STRING "Base URL for the updater.")
+# Github repo URL with releases for updater
+set(Launcher_UPDATER_GITHUB_REPO "https://github.com/PrismLauncher/PrismLauncher" CACHE STRING "Base github URL for the updater.")
+
+# Name to help updater identify valid artifacts
+set(Launcher_BUILD_ARTIFACT "" CACHE STRING "Artifact name to help the updater identify valid artifacts.")

 # The metadata server
 set(Launcher_META_URL "https://meta.prismlauncher.org/v1/" CACHE STRING "URL to fetch Launcher's meta files from.")
@ -245,6 +248,11 @@ set(Launcher_MSA_CLIENT_ID "c36a9fb6-4f2a-41ff-90bd-ae7cc92031eb" CACHE STRING "
 # This key was issued specifically for Prism Launcher
 set(Launcher_CURSEFORGE_API_KEY "$2a$10$wuAJuNZuted3NORVmpgUC.m8sI.pv1tOPKZyBgLFGjxFp/br0lZCC" CACHE STRING "API key for the CurseForge platform")

+set(Launcher_COMPILER_NAME ${CMAKE_CXX_COMPILER_ID})
+set(Launcher_COMPILER_VERSION ${CMAKE_CXX_COMPILER_VERSION})
+set(Launcher_COMPILER_TARGET_SYSTEM ${CMAKE_SYSTEM_NAME})
+set(Launcher_COMPILER_TARGET_SYSTEM_VERSION ${CMAKE_SYSTEM_VERSION})
+set(Launcher_COMPILER_TARGET_PROCESSOR ${CMAKE_SYSTEM_PROCESSOR})

 #### Check the current Git commit and branch
 include(GetGitRevisionDescription)
--- a/buildconfig/BuildConfig.cpp.in
+++ b/buildconfig/BuildConfig.cpp.in
@ -33,6 +33,7 @@
 *      limitations under the License.
 */

+#include <qstringliteral.h>
 #include "BuildConfig.h"
 #include <QObject>

@ -59,8 +60,16 @@ Config::Config()
    VERSION_MINOR = @Launcher_VERSION_MINOR@;

    BUILD_PLATFORM = "@Launcher_BUILD_PLATFORM@";
+    BUILD_ARTIFACT = "@Launcher_BUILD_ARTIFACT@";
    BUILD_DATE = "@Launcher_BUILD_TIMESTAMP@";
-    UPDATER_BASE = "@Launcher_UPDATER_BASE@";
+    UPDATER_GITHUB_REPO = "@Launcher_UPDATER_GITHUB_REPO@";
+
+    COMPILER_NAME = "@Launcher_COMPILER_NAME@";
+    COMPILER_VERSION = "@Launcher_COMPILER_VERSION@";
+
+    COMPILER_TARGET_SYSTEM = "@Launcher_COMPILER_TARGET_SYSTEM@";
+    COMPILER_TARGET_SYSTEM_VERSION = "@Launcher_COMPILER_TARGET_SYSTEM_VERSION@";
+    COMPILER_TARGET_SYSTEM_PROCESSOR = "@Launcher_COMPILER_TARGET_PROCESSOR@";

    MAC_SPARKLE_PUB_KEY = "@MACOSX_SPARKLE_UPDATE_PUBLIC_KEY@";
    MAC_SPARKLE_APPCAST_URL = "@MACOSX_SPARKLE_UPDATE_FEED_URL@";
@ -68,6 +77,8 @@ Config::Config()
    if (!MAC_SPARKLE_PUB_KEY.isEmpty() && !MAC_SPARKLE_APPCAST_URL.isEmpty())
    {
        UPDATER_ENABLED = true;
+    } else if(!UPDATER_GITHUB_REPO.isEmpty() && !BUILD_ARTIFACT.isEmpty()) {
+        UPDATER_ENABLED = true;
    }

    GIT_COMMIT = "@Launcher_GIT_COMMIT@";
@ -89,9 +100,6 @@ Config::Config()
    {
        VERSION_CHANNEL = GIT_REFSPEC;
        VERSION_CHANNEL.remove("refs/heads/"); 
-        if(!UPDATER_BASE.isEmpty() && !BUILD_PLATFORM.isEmpty()) {
-            UPDATER_ENABLED = true;
-        }
    }
    else if (!GIT_COMMIT.isEmpty())
    {
@ -136,3 +144,16 @@ QString Config::printableVersionString() const
    }
    return vstr;
 }
+
+QString Config::compilerID() const
+{
+    if (COMPILER_VERSION.isEmpty())
+        return COMPILER_NAME;
+    return QStringLiteral("%1 - %2").arg(COMPILER_NAME).arg(COMPILER_VERSION);
+}
+
+QString Config::systemID() const
+{
+    return QStringLiteral("%1 %2 %3").arg(COMPILER_TARGET_SYSTEM, COMPILER_TARGET_SYSTEM_VERSION, COMPILER_TARGET_SYSTEM_PROCESSOR);
+}
+
--- a/buildconfig/BuildConfig.h
+++ b/buildconfig/BuildConfig.h
@ -71,11 +71,29 @@ class Config {
    /// A short string identifying this build's platform or distribution.
    QString BUILD_PLATFORM;

+    /// A short string identifying this build's valid artifacts int he updater. For example, "lin64" or "win32".
+    QString BUILD_ARTIFACT;
+
    /// A string containing the build timestamp
    QString BUILD_DATE;

+    /// A string identifying the compiler use to build
+    QString COMPILER_NAME;
+
+    /// A string identifying the compiler version used to build
+    QString COMPILER_VERSION;
+
+    /// A string identifying the compiler target system os
+    QString COMPILER_TARGET_SYSTEM;
+
+    /// A String identifying the compiler target system version
+    QString COMPILER_TARGET_SYSTEM_VERSION;
+
+    /// A String identifying the compiler target processor
+    QString COMPILER_TARGET_SYSTEM_PROCESSOR;
+
    /// URL for the updater's channel
-    QString UPDATER_BASE;
+    QString UPDATER_GITHUB_REPO;

    /// The public key used to sign releases for the Sparkle updater appcast
    QString MAC_SPARKLE_PUB_KEY;
@ -175,6 +193,18 @@ class Config {
     * \return The version number in string format (major.minor.revision.build).
     */
    QString printableVersionString() const;
+
+    /**
+     * \brief Compiler ID String
+     * \return a string of the form "Name - Version"  of just "Name" if the version is empty
+     */
+    QString compilerID() const;
+
+    /**
+     * \brief System ID String
+     * \return a string of the form "OS Verison Processor"
+     */
+    QString systemID() const;
 };

 extern const Config BuildConfig;
--- a/launcher/Application.cpp
+++ b/launcher/Application.cpp
@ -122,6 +122,7 @@
 #include <FileSystem.h>
 #include <LocalPeer.h>

+#include <stdlib.h>
 #include <sys.h>

 #ifdef Q_OS_LINUX
@ -130,9 +131,13 @@
 #include "gamemode_client.h"
 #endif

-#if defined(Q_OS_MAC) && defined(SPARKLE_ENABLED)
+#if defined(Q_OS_MAC)
+#if defined(SPARKLE_ENABLED)
 #include "updater/MacSparkleUpdater.h"
 #endif
+#else
+#include "updater/PrismExternalUpdater.h"
+#endif

 #if defined Q_OS_WIN32
 #include "WindowsConsole.h"
@ -164,6 +169,34 @@ void appDebugOutput(QtMsgType type, const QMessageLogContext& context, const QSt

 }  // namespace

+std::tuple<QDateTime, QString, QString, QString, QString> read_lock_File(const QString& path)
+{
+    auto contents = QString(FS::read(path));
+    auto lines = contents.split('\n');
+
+    QDateTime timestamp;
+    QString from, to, target, data_path;
+    for (auto line : lines) {
+        auto index = line.indexOf("=");
+        if (index < 0)
+            continue;
+        auto left = line.left(index);
+        auto right = line.mid(index + 1);
+        if (left.toLower() == "timestamp") {
+            timestamp = QDateTime::fromString(right, Qt::ISODate);
+        } else if (left.toLower() == "from") {
+            from = right;
+        } else if (left.toLower() == "to") {
+            to = right;
+        } else if (left.toLower() == "target") {
+            target = right;
+        } else if (left.toLower() == "data_path") {
+            data_path = right;
+        }
+    }
+    return std::make_tuple(timestamp, from, to, target, data_path);
+}
+
 Application::Application(int& argc, char** argv) : QApplication(argc, argv)
 {
 #if defined Q_OS_WIN32
@ -296,6 +329,7 @@ Application::Application(int& argc, char** argv) : QApplication(argc, argv)
                                  .arg(dataPath));
        return;
    }
+    m_dataPath = dataPath;

    /*
     * Establish the mechanism for communication with an already running PrismLauncher that uses the same data path.
@ -450,11 +484,16 @@ Application::Application(int& argc, char** argv) : QApplication(argc, argv)
    }

    {
-        qDebug() << BuildConfig.LAUNCHER_DISPLAYNAME << ", (c) 2013-2021 " << BuildConfig.LAUNCHER_COPYRIGHT;
+        qDebug() << qPrintable(BuildConfig.LAUNCHER_DISPLAYNAME) << ", (c) 2022-2023 "
+                 << qPrintable(QString(BuildConfig.LAUNCHER_COPYRIGHT).replace("\n", ", "));
        qDebug() << "Version                    : " << BuildConfig.printableVersionString();
        qDebug() << "Platform                   : " << BuildConfig.BUILD_PLATFORM;
        qDebug() << "Git commit                 : " << BuildConfig.GIT_COMMIT;
        qDebug() << "Git refspec                : " << BuildConfig.GIT_REFSPEC;
+        qDebug() << "Compiled for               : " << BuildConfig.systemID();
+        qDebug() << "Compiled by                : " << BuildConfig.compilerID();
+        qDebug() << "Build Artifact             : " << BuildConfig.BUILD_ARTIFACT;
+        qDebug() << "Updates Enabled           : " << (updaterEnabled() ? "Yes" : "No");
        if (adjustedBy.size()) {
            qDebug() << "Work dir before adjustment : " << origcwdPath;
            qDebug() << "Work dir after adjustment  : " << QDir::currentPath();
@ -741,15 +780,6 @@ Application::Application(int& argc, char** argv) : QApplication(argc, argv)
        qDebug() << "<> Translations loaded.";
    }

-    // initialize the updater
-    if (BuildConfig.UPDATER_ENABLED) {
-        qDebug() << "Initializing updater";
-#if defined(Q_OS_MAC) && defined(SPARKLE_ENABLED)
-        m_updater.reset(new MacSparkleUpdater());
-#endif
-        qDebug() << "<> Updater started.";
-    }
-
    // Instance icons
    {
        auto setting = APPLICATION->settings()->getSetting("IconsDir");
@ -852,6 +882,107 @@ Application::Application(int& argc, char** argv) : QApplication(argc, argv)

    detectLibraries();

+    // check update locks
+    {
+        auto update_log_path = FS::PathCombine(m_dataPath, "logs", "prism_launcher_update.log");
+
+        auto update_lock = QFileInfo(FS::PathCombine(m_dataPath, ".prism_launcher_update.lock"));
+        if (update_lock.exists()) {
+            auto [timestamp, from, to, target, data_path] = read_lock_File(update_lock.absoluteFilePath());
+            auto infoMsg = tr("This installation has a update lock file present at: %1\n"
+                              "\n"
+                              "Timestamp: %2\n"
+                              "Updating from version %3 to %4\n"
+                              "Target install path: %5\n"
+                              "Data Path: %6"
+                              "\n"
+                              "This likely means that a update attempt failed. Please ensure your installation is in working order before "
+                              "proceeding.\n"
+                              "Check the Prism Launcher updater log at: \n"
+                              "%7\n"
+                              "for details on the last update attempt.\n"
+                              "\n"
+                              "To delete this lock and proceed select \"Ignore\" below.")
+                               .arg(update_lock.absoluteFilePath())
+                               .arg(timestamp.toString(Qt::ISODate), from, to, target, data_path)
+                               .arg(update_log_path);
+            auto msgBox = QMessageBox(QMessageBox::Warning, tr("Update In Progress"), infoMsg, QMessageBox::Ignore | QMessageBox::Abort);
+            msgBox.setDefaultButton(QMessageBox::Abort);
+            msgBox.setModal(true);
+            msgBox.setDetailedText(FS::read(update_log_path));
+            msgBox.setMinimumWidth(460);
+            msgBox.adjustSize();
+            auto res = msgBox.exec();
+            switch (res) {
+                case QMessageBox::Ignore: {
+                    FS::deletePath(update_lock.absoluteFilePath());
+                    break;
+                }
+                case QMessageBox::Abort:
+                    [[fallthrough]];
+                default: {
+                    qDebug() << "Exiting because update lockfile is present";
+                    QMetaObject::invokeMethod(
+                        this, []() { exit(1); }, Qt::QueuedConnection);
+                    return;
+                }
+            }
+        }
+
+        auto update_fail_marker = QFileInfo(FS::PathCombine(m_dataPath, ".prism_launcher_update.fail"));
+        if (update_fail_marker.exists()) {
+            auto infoMsg = tr("An update attempt failed\n"
+                              "\n"
+                              "Please ensure your installation is in working order before "
+                              "proceeding.\n"
+                              "Check the Prism Launcher updater log at: \n"
+                              "%1\n"
+                              "for details on the last update attempt.")
+                               .arg(update_log_path);
+            auto msgBox = QMessageBox(QMessageBox::Warning, tr("Update Failed"), infoMsg, QMessageBox::Ignore | QMessageBox::Abort);
+            msgBox.setDefaultButton(QMessageBox::Abort);
+            msgBox.setModal(true);
+            msgBox.setDetailedText(FS::read(update_log_path));
+            msgBox.setMinimumWidth(460);
+            msgBox.adjustSize();
+            auto res = msgBox.exec();
+            switch (res) {
+                case QMessageBox::Ignore: {
+                    FS::deletePath(update_fail_marker.absoluteFilePath());
+                    break;
+                }
+                case QMessageBox::Abort:
+                    [[fallthrough]];
+                default: {
+                    qDebug() << "Exiting because update lockfile is present";
+                    QMetaObject::invokeMethod(
+                        this, []() { exit(1); }, Qt::QueuedConnection);
+                    return;
+                }
+            }
+        }
+
+        auto update_success_marker = QFileInfo(FS::PathCombine(m_dataPath, ".prism_launcher_update.success"));
+        if (update_success_marker.exists()) {
+            auto infoMsg = tr("Update succeeded\n"
+                              "\n"
+                              "You are now running %1 .\n"
+                              "Check the Prism Launcher updater log at: \n"
+                              "%1\n"
+                              "for details.")
+                               .arg(BuildConfig.printableVersionString())
+                               .arg(update_log_path);
+            auto msgBox = new QMessageBox(QMessageBox::Information, tr("Update Succeeded"), infoMsg, QMessageBox::Ok);
+            msgBox->setDefaultButton(QMessageBox::Ok);
+            msgBox->setDetailedText(FS::read(update_log_path));
+            msgBox->setAttribute(Qt::WA_DeleteOnClose);
+            msgBox->setMinimumWidth(460);
+            msgBox->adjustSize();
+            msgBox->open();
+            FS::deletePath(update_success_marker.absoluteFilePath());
+        }
+    }
+
    if (createSetupWizard()) {
        return;
    }
@ -920,6 +1051,26 @@ bool Application::createSetupWizard()
    return false;
 }

+bool Application::updaterEnabled()
+{
+#if defined(Q_OS_MAC)
+    return BuildConfig.UPDATER_ENABLED;
+#else
+    return BuildConfig.UPDATER_ENABLED && QFileInfo(FS::PathCombine(m_rootPath, updaterBinaryName())).isFile();
+#endif
+}
+
+QString Application::updaterBinaryName()
+{
+    auto exe_name = QStringLiteral("%1_updater").arg(BuildConfig.LAUNCHER_APP_BINARY_NAME);
+#if defined Q_OS_WIN32
+    exe_name.append(".exe");
+#else
+    exe_name.prepend("bin/");
+#endif
+    return exe_name;
+}
+
 bool Application::event(QEvent* event)
 {
 #ifdef Q_OS_MACOS
@ -988,6 +1139,20 @@ void Application::performMainStartupAction()
        showMainWindow(false);
        qDebug() << "<> Main window shown.";
    }
+
+    // initialize the updater
+    if (updaterEnabled()) {
+        qDebug() << "Initializing updater";
+#ifdef Q_OS_MAC
+#if defined(SPARKLE_ENABLED)
+        m_updater.reset(new MacSparkleUpdater());
+#endif
+#else
+        m_updater.reset(new PrismExternalUpdater(m_mainWindow, m_rootPath, m_dataPath));
+#endif
+        qDebug() << "<> Updater started.";
+    }
+
    if (!m_urlsToImport.isEmpty()) {
        qDebug() << "<> Importing from url:" << m_urlsToImport;
        m_mainWindow->processURLs(m_urlsToImport);
--- a/launcher/Application.h
+++ b/launcher/Application.h
@ -159,6 +159,9 @@ class Application : public QApplication {
    /// this is the root of the 'installation'. Used for automatic updates
    const QString& root() { return m_rootPath; }

+    /// the data path the application is using
+    const QString& dataRoot() { return m_dataPath; }
+
    bool isPortable() { return m_portable; }

    const Capabilities capabilities() { return m_capabilities; }
@ -179,6 +182,9 @@ class Application : public QApplication {

    int suitableMaxMem();

+    bool updaterEnabled();
+    QString updaterBinaryName();
+
    QUrl normalizeImportUrl(QString const& url);

   signals:
@ -244,6 +250,7 @@ class Application : public QApplication {
    QMap<QString, std::shared_ptr<BaseProfilerFactory>> m_profilers;

    QString m_rootPath;
+    QString m_dataPath;
    Status m_status = Application::StartingUp;
    Capabilities m_capabilities;
    bool m_portable = false;
--- a/launcher/CMakeLists.txt
+++ b/launcher/CMakeLists.txt
@ -181,6 +181,11 @@ set(MAC_UPDATE_SOURCES
    updater/MacSparkleUpdater.mm
 )

+set(PRISM_UPDATE_SOURCES
+    updater/PrismExternalUpdater.h
+    updater/PrismExternalUpdater.cpp
+)
+
 # Backend for the news bar... there's usually no news.
 set(NEWS_SOURCES
    # News System
@ -579,6 +584,63 @@ set(LINKEXE_SOURCES
    DesktopServices.cpp
 )

+set(PRISMUPDATER_SOURCES
+    updater/prismupdater/PrismUpdater.h
+    updater/prismupdater/PrismUpdater.cpp
+    updater/prismupdater/UpdaterDialogs.h
+    updater/prismupdater/UpdaterDialogs.cpp
+    updater/prismupdater/GitHubRelease.h
+    updater/prismupdater/GitHubRelease.cpp
+   
+    Json.h
+    Json.cpp
+    FileSystem.h
+    FileSystem.cpp
+    StringUtils.h
+    StringUtils.cpp
+    DesktopServices.h
+    DesktopServices.cpp
+    Version.h
+    Version.cpp
+    Markdown.h
+    Markdown.cpp
+
+    # Zip
+    MMCZip.h
+    MMCZip.cpp
+    
+    # Time
+    MMCTime.h
+    MMCTime.cpp
+
+    net/ByteArraySink.h
+    net/ChecksumValidator.h
+    net/Download.cpp
+    net/Download.h
+    net/FileSink.cpp
+    net/FileSink.h
+    net/HttpMetaCache.cpp
+    net/HttpMetaCache.h
+    net/Logging.h
+    net/Logging.cpp
+    net/NetAction.h
+    net/NetRequest.cpp
+    net/NetRequest.h
+    net/NetJob.cpp
+    net/NetJob.h
+    net/NetUtils.h
+    net/Sink.h
+    net/Validator.h
+    net/HeaderProxy.h
+    net/RawHeaderProxy.h
+
+    ui/dialogs/ProgressDialog.cpp
+    ui/dialogs/ProgressDialog.h
+    ui/widgets/SubTaskProgressBar.h
+    ui/widgets/SubTaskProgressBar.cpp
+
+)
+
 ######## Logging categories ########

 ecm_qt_declare_logging_category(CORE_SOURCES
@ -675,6 +737,8 @@ set(LOGIC_SOURCES

 if(APPLE AND Launcher_ENABLE_UPDATER)
    set (LOGIC_SOURCES ${LOGIC_SOURCES} ${MAC_UPDATE_SOURCES})
+else()
+    set (LOGIC_SOURCES ${LOGIC_SOURCES} ${PRISM_UPDATE_SOURCES})
 endif()

 SET(LAUNCHER_SOURCES
@ -1033,6 +1097,15 @@ SET(LAUNCHER_SOURCES
    ui/instanceview/VisualGroup.h
 )

+if (NOT Apple)
+set(LAUNCHER_SOURCES
+    ${LAUNCHER_SOURCES}
+
+    ui/dialogs/UpdateAvailableDialog.h
+    ui/dialogs/UpdateAvailableDialog.cpp
+)
+endif()
+
 if(WIN32)
    set(LAUNCHER_SOURCES
        WindowsConsole.cpp
@ -1103,6 +1176,14 @@ qt_wrap_ui(LAUNCHER_UI
    ui/dialogs/ChooseProviderDialog.ui
 )

+qt_wrap_ui(PRISM_UPDATE_UI
+    ui/dialogs/UpdateAvailableDialog.ui
+)
+
+if (NOT Apple)
+    set (LAUNCHER_UI ${LAUNCHER_UI} ${PRISM_UPDATE_UI})
+endif()
+
 qt_add_resources(LAUNCHER_RESOURCES
    resources/backgrounds/backgrounds.qrc
    resources/multimc/multimc.qrc
@ -1119,6 +1200,12 @@ qt_add_resources(LAUNCHER_RESOURCES
    ../${Launcher_Branding_LogoQRC}
 )

+qt_wrap_ui(PRISMUPDATER_UI
+    updater/prismupdater/SelectReleaseDialog.ui
+    ui/widgets/SubTaskProgressBar.ui
+    ui/dialogs/ProgressDialog.ui
+)
+
 ######## Windows resource files ########
 if(WIN32)
    set(LAUNCHER_RCS ${CMAKE_CURRENT_BINARY_DIR}/../${Launcher_Branding_WindowsRC})
@ -1137,6 +1224,7 @@ set_project_warnings(Launcher_logic
    "${Launcher_GCC_WARNINGS}")
 target_compile_definitions(Launcher_logic PUBLIC LAUNCHER_APPLICATION)
 target_include_directories(Launcher_logic PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
+target_compile_definitions(Launcher_logic PUBLIC LAUNCHER_APPLICATION)
 target_link_libraries(Launcher_logic
    systeminfo
    Launcher_murmur2
@ -1218,7 +1306,45 @@ install(TARGETS ${Launcher_Name}
    FRAMEWORK DESTINATION ${FRAMEWORK_DEST_DIR} COMPONENT Runtime
 )

-if(WIN32)
+if(NOT APPLE OR (DEFINED Launcher_BUILD_UPDATER AND Launcher_BUILD_UPDATER))
+    # Updater
+    add_library(prism_updater_logic STATIC ${PRISMUPDATER_SOURCES} ${TASKS_SOURCES} ${PRISMUPDATER_UI})
+    target_include_directories(prism_updater_logic PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
+    target_link_libraries(prism_updater_logic
+        QuaZip::QuaZip
+        ${ZLIB_LIBRARIES}
+        systeminfo
+        BuildConfig
+        ghcFilesystem::ghc_filesystem
+        Qt${QT_VERSION_MAJOR}::Widgets
+        Qt${QT_VERSION_MAJOR}::Core
+        Qt${QT_VERSION_MAJOR}::Network
+        ${Launcher_QT_LIBS}
+        cmark::cmark
+        Katabasis
+    )
+
+    add_executable("${Launcher_Name}_updater" WIN32 updater/prismupdater/updater_main.cpp)
+    target_sources("${Launcher_Name}_updater" PRIVATE updater/prismupdater/updater.exe.manifest)
+    target_link_libraries("${Launcher_Name}_updater" prism_updater_logic)
+    
+    if(DEFINED Launcher_APP_BINARY_NAME)
+        set_target_properties("${Launcher_Name}_updater" PROPERTIES OUTPUT_NAME "${Launcher_APP_BINARY_NAME}_updater")
+    endif()
+    if(DEFINED Launcher_BINARY_RPATH)
+        SET_TARGET_PROPERTIES("${Launcher_Name}_updater" PROPERTIES INSTALL_RPATH "${Launcher_BINARY_RPATH}")
+    endif()
+
+    install(TARGETS "${Launcher_Name}_updater"
+        BUNDLE DESTINATION "." COMPONENT Runtime
+        LIBRARY DESTINATION ${LIBRARY_DEST_DIR} COMPONENT Runtime
+        RUNTIME DESTINATION ${BINARY_DEST_DIR} COMPONENT Runtime
+        FRAMEWORK DESTINATION ${FRAMEWORK_DEST_DIR} COMPONENT Runtime
+    )
+endif()
+
+if(WIN32 OR (DEFINED Launcher_BUILD_FILELINKER AND Launcher_BUILD_FILELINKER))
+    # File link
    add_library(filelink_logic STATIC ${LINKEXE_SOURCES})
    set_project_warnings(filelink_logic
    "${Launcher_MSVC_WARNINGS}"
@ -1237,7 +1363,7 @@ if(WIN32)
        ${Launcher_QT_LIBS}
    )

-    add_executable("${Launcher_Name}_filelink" WIN32 filelink/main.cpp)
+    add_executable("${Launcher_Name}_filelink" WIN32 filelink/filelink_main.cpp)

    target_sources("${Launcher_Name}_filelink" PRIVATE filelink/filelink.exe.manifest)

--- a/launcher/FileSystem.cpp
+++ b/launcher/FileSystem.cpp
@ -194,6 +194,40 @@ void write(const QString& filename, const QByteArray& data)
    }
 }

+void appendSafe(const QString& filename, const QByteArray& data)
+{
+    ensureExists(QFileInfo(filename).dir());
+    QByteArray buffer;
+    try {
+        buffer = read(filename);
+    } catch (FileSystemException&) {
+        buffer = QByteArray();
+    }
+    buffer.append(data);
+    QSaveFile file(filename);
+    if (!file.open(QSaveFile::WriteOnly)) {
+        throw FileSystemException("Couldn't open " + filename + " for writing: " + file.errorString());
+    }
+    if (buffer.size() != file.write(buffer)) {
+        throw FileSystemException("Error writing data to " + filename + ": " + file.errorString());
+    }
+    if (!file.commit()) {
+        throw FileSystemException("Error while committing data to " + filename + ": " + file.errorString());
+    }
+}
+
+void append(const QString& filename, const QByteArray& data)
+{
+    ensureExists(QFileInfo(filename).dir());
+    QFile file(filename);
+    if (!file.open(QFile::Append)) {
+        throw FileSystemException("Couldn't open " + filename + " for writing: " + file.errorString());
+    }
+    if (data.size() != file.write(data)) {
+        throw FileSystemException("Error writing data to " + filename + ": " + file.errorString());
+    }
+}
+
 QByteArray read(const QString& filename)
 {
    QFile file(filename);
@ -287,6 +321,9 @@ bool copy::operator()(const QString& offset, bool dryRun)
    if (!m_followSymlinks)
        opt |= copy_opts::copy_symlinks;

+    if (m_overwrite)
+        opt |= copy_opts::overwrite_existing;
+
    // Function that'll do the actual copying
    auto copy_file = [&](QString src_path, QString relative_dst_path) {
        if (m_matcher && (m_matcher->matches(relative_dst_path) != m_whitelist))
--- a/launcher/FileSystem.h
+++ b/launcher/FileSystem.h
@ -61,6 +61,16 @@ class FileSystemException : public ::Exception {
 */
 void write(const QString& filename, const QByteArray& data);

+/**
+ * append data to a file safely
+ */
+void appendSafe(const QString& filename, const QByteArray& data);
+
+/**
+ * append data to a file
+ */
+void append(const QString& filename, const QByteArray& data);
+
 /**
 * read data from a file safely\
 */
@ -109,6 +119,11 @@ class copy : public QObject {
        m_whitelist = whitelist;
        return *this;
    }
+    copy& overwrite(const bool overwrite)
+    {
+        m_overwrite = overwrite;
+        return *this;
+    }

    bool operator()(bool dryRun = false) { return operator()(QString(), dryRun); }

@ -128,6 +143,7 @@ class copy : public QObject {
    bool m_followSymlinks = true;
    const IPathMatcher* m_matcher = nullptr;
    bool m_whitelist = false;
+    bool m_overwrite = false;
    QDir m_src;
    QDir m_dst;
    qsizetype m_copied;
--- a/launcher/MMCZip.cpp
+++ b/launcher/MMCZip.cpp
@ -42,7 +42,11 @@

 #include <QCoreApplication>
 #include <QDebug>
+#include <QUrl>
+
+#if defined(LAUNCHER_APPLICATION)
 #include <QtConcurrentRun>
+#endif

 namespace MMCZip {
 // ours
@ -132,6 +136,7 @@ bool compressDirFiles(QString fileCompressed, QString dir, QFileInfoList files,
    return result;
 }

+#if defined(LAUNCHER_APPLICATION)
 // ours
 bool createModdedJar(QString sourceJarPath, QString targetJarPath, const QList<Mod*>& mods)
 {
@ -217,6 +222,7 @@ bool createModdedJar(QString sourceJarPath, QString targetJarPath, const QList<M
    }
    return true;
 }
+#endif

 // ours
 QString findFolderOfFileInZip(QuaZip* zip, const QString& what, const QStringList& ignore_paths, const QString& root)
@ -422,6 +428,7 @@ bool collectFileListRecursively(const QString& rootDir, const QString& subDir, Q
    return true;
 }

+#if defined(LAUNCHER_APPLICATION)
 void ExportToZipTask::executeTask()
 {
    setStatus("Adding files...");
@ -500,5 +507,6 @@ bool ExportToZipTask::abort()
    }
    return false;
 }
+#endif

 }  // namespace MMCZip
--- a/launcher/MMCZip.h
+++ b/launcher/MMCZip.h
@ -48,7 +48,10 @@
 #include <functional>
 #include <memory>
 #include <optional>
+
+#if defined(LAUNCHER_APPLICATION)
 #include "minecraft/mod/Mod.h"
+#endif
 #include "tasks/Task.h"

 namespace MMCZip {
@ -79,11 +82,12 @@ bool compressDirFiles(QuaZip* zip, QString dir, QFileInfoList files, bool follow
 */
 bool compressDirFiles(QString fileCompressed, QString dir, QFileInfoList files, bool followSymlinks = false);

+#if defined(LAUNCHER_APPLICATION)
 /**
 * take a source jar, add mods to it, resulting in target jar
 */
 bool createModdedJar(QString sourceJarPath, QString targetJarPath, const QList<Mod*>& mods);
-
+#endif
 /**
 * Find a single file in archive by file name (not path)
 *
@ -147,6 +151,7 @@ bool extractFile(QString fileCompressed, QString file, QString dir);
 */
 bool collectFileListRecursively(const QString& rootDir, const QString& subDir, QFileInfoList* files, FilterFunction excludeFilter);

+#if defined(LAUNCHER_APPLICATION)
 class ExportToZipTask : public Task {
   public:
    ExportToZipTask(QString outputPath, QDir dir, QFileInfoList files, QString destinationPrefix = "", bool followSymlinks = false)
@ -189,4 +194,5 @@ class ExportToZipTask : public Task {
    QFuture<ZipResult> m_build_zip_future;
    QFutureWatcher<ZipResult> m_build_zip_watcher;
 };
+#endif
 }  // namespace MMCZip
--- a/launcher/StringUtils.cpp
+++ b/launcher/StringUtils.cpp
@ -35,6 +35,7 @@
 */

 #include "StringUtils.h"
+#include <qpair.h>

 #include <QRegularExpression>
 #include <QUuid>
@ -149,7 +150,7 @@ QString StringUtils::truncateUrlHumanFriendly(QUrl& url, int max_len, bool hard_
    }

    if ((url_compact.length() >= max_len) && hard_limit) {
-        // still too long, truncate normaly
+        // still too long, truncate normally
        url_compact = QString(str_url);
        auto to_remove = url_compact.length() - max_len + 3;
        url_compact.remove(url_compact.length() - to_remove - 1, to_remove);
@ -182,3 +183,32 @@ QString StringUtils::getRandomAlphaNumeric()
 {
    return QUuid::createUuid().toString(QUuid::Id128);
 }
+
+QPair<QString, QString> StringUtils::splitFirst(const QString& s, const QString& sep, Qt::CaseSensitivity cs)
+{
+    QString left, right;
+    auto index = s.indexOf(sep, 0, cs);
+    left = s.mid(0, index);
+    right = s.mid(index + sep.length());
+    return qMakePair(left, right);
+}
+
+QPair<QString, QString> StringUtils::splitFirst(const QString& s, QChar sep, Qt::CaseSensitivity cs)
+{
+    QString left, right;
+    auto index = s.indexOf(sep, 0, cs);
+    left = s.mid(0, index);
+    right = s.mid(left.length() + 1);
+    return qMakePair(left, right);
+}
+
+QPair<QString, QString> StringUtils::splitFirst(const QString& s, const QRegularExpression& re)
+{
+    QString left, right;
+    QRegularExpressionMatch match;
+    auto index = s.indexOf(re, 0, &match);
+    left = s.mid(0, index);
+    auto end = match.hasMatch() ? left.length() + match.capturedLength() : left.length() + 1;
+    right = s.mid(end);
+    return qMakePair(left, right);
+}
--- a/launcher/StringUtils.h
+++ b/launcher/StringUtils.h
@ -36,8 +36,10 @@

 #pragma once

+#include <QPair>
 #include <QString>
 #include <QUrl>
+#include <utility>

 namespace StringUtils {

@ -70,12 +72,17 @@ int naturalCompare(const QString& s1, const QString& s2, Qt::CaseSensitivity cs)
 /**
 * @brief Truncate a url while keeping its readability py placing the `...` in the middle of the path
 * @param url Url to truncate
- * @param max_len max lenght of url in charaters
- * @param hard_limit if truncating the path can't get the url short enough, truncate it normaly.
+ * @param max_len max length of url in characters
+ * @param hard_limit if truncating the path can't get the url short enough, truncate it normally.
 */
 QString truncateUrlHumanFriendly(QUrl& url, int max_len, bool hard_limit = false);

 QString humanReadableFileSize(double bytes, bool use_si = false, int decimal_points = 1);

 QString getRandomAlphaNumeric();
+
+QPair<QString, QString> splitFirst(const QString& s, const QString& sep, Qt::CaseSensitivity cs = Qt::CaseSensitive);
+QPair<QString, QString> splitFirst(const QString& s, QChar sep, Qt::CaseSensitivity cs = Qt::CaseSensitive);
+QPair<QString, QString> splitFirst(const QString& s, const QRegularExpression& re);
+
 }  // namespace StringUtils
--- a/launcher/Version.h
+++ b/launcher/Version.h
@ -56,6 +56,7 @@ class Version {
    bool operator!=(const Version& other) const;

    QString toString() const { return m_string; }
+    bool isEmpty() const { return m_string.isEmpty(); }

    friend QDebug operator<<(QDebug debug, const Version& v);

--- a/launcher/filelink/FileLink.cpp
+++ b/launcher/filelink/FileLink.cpp
@ -93,6 +93,7 @@ FileLinkApp::FileLinkApp(int& argc, char** argv) : QCoreApplication(argc, argv),
        joinServer(serverToJoin);
    } else {
        qDebug() << "no server to join";
+        m_status = Failed;
        exit();
    }
 }
@ -108,6 +109,7 @@ void FileLinkApp::joinServer(QString server)
    connect(&socket, &QLocalSocket::readyRead, this, &FileLinkApp::readPathPairs);

    connect(&socket, &QLocalSocket::errorOccurred, this, [&](QLocalSocket::LocalSocketError socketError) {
+        m_status = Failed;
        switch (socketError) {
            case QLocalSocket::ServerNotFoundError:
                qDebug()
@ -132,6 +134,7 @@ void FileLinkApp::joinServer(QString server)

    connect(&socket, &QLocalSocket::disconnected, this, [&]() {
        qDebug() << "disconnected from server, should exit";
+        m_status = Succeeded;
        exit();
    });

--- a/launcher/filelink/FileLink.h
+++ b/launcher/filelink/FileLink.h
@ -41,8 +41,10 @@ class FileLinkApp : public QCoreApplication {
    // friends for the purpose of limiting access to deprecated stuff
    Q_OBJECT
   public:
+    enum Status { Starting, Failed, Succeeded, Initialized };
    FileLinkApp(int& argc, char** argv);
    virtual ~FileLinkApp();
+    Status status() const { return m_status; }

   private:
    void joinServer(QString server);
@ -50,6 +52,8 @@ class FileLinkApp : public QCoreApplication {
    void runLink();
    void sendResults();

+    Status m_status = Status::Starting;
+
    bool m_useHardLinks = false;

    QDateTime m_startTime;
--- a/launcher/filelink/filelink_main.cpp
+++ b/launcher/filelink/filelink_main.cpp
@ -26,5 +26,16 @@ int main(int argc, char* argv[])
 {
    FileLinkApp ldh(argc, argv);

+    switch (ldh.status()) {
+        case FileLinkApp::Starting:
+        case FileLinkApp::Initialized: {
            return ldh.exec();
+        }
+        case FileLinkApp::Failed:
+            return 1;
+        case FileLinkApp::Succeeded:
+            return 0;
+        default:
+            return -1;
+    }
 }
--- a/launcher/modplatform/flame/FlameInstanceCreationTask.cpp
+++ b/launcher/modplatform/flame/FlameInstanceCreationTask.cpp
@ -568,7 +568,7 @@ void FlameCreationTask::setupDownloadJob(QEventLoop& loop)
    m_mod_id_resolver.reset();
    connect(m_files_job.get(), &NetJob::succeeded, this, [&]() {
        m_files_job.reset();
-        validateZIPResouces();
+        validateZIPResources();
    });
    connect(m_files_job.get(), &NetJob::failed, [&](QString reason) {
        m_files_job.reset();
@ -617,7 +617,7 @@ void FlameCreationTask::copyBlockedMods(QList<BlockedMod> const& blocked_mods)
    setAbortable(true);
 }

-void FlameCreationTask::validateZIPResouces()
+void FlameCreationTask::validateZIPResources()
 {
    qDebug() << "Validating whether resources stored as .zip are in the right place";
    for (auto [fileName, targetFolder] : m_ZIP_resources) {
@ -670,8 +670,8 @@ void FlameCreationTask::validateZIPResouces()
                validatePath(fileName, targetFolder, "datapacks");
                break;
            case PackedResourceType::ShaderPack:
-                // in theroy flame API can't do this but who knows, that *may* change ?
-                // better to handle it if it *does* occure in the future
+                // in theory flame API can't do this but who knows, that *may* change ?
+                // better to handle it if it *does* occur in the future
                validatePath(fileName, targetFolder, "shaderpacks");
                break;
            case PackedResourceType::WorldSave:
--- a/launcher/modplatform/flame/FlameInstanceCreationTask.h
+++ b/launcher/modplatform/flame/FlameInstanceCreationTask.h
@ -74,7 +74,7 @@ class FlameCreationTask final : public InstanceCreationTask {
    void idResolverSucceeded(QEventLoop&);
    void setupDownloadJob(QEventLoop&);
    void copyBlockedMods(QList<BlockedMod> const& blocked_mods);
-    void validateZIPResouces();
+    void validateZIPResources();
    QString getVersionForLoader(QString uid, QString loaderType, QString version, QString mcVersion);

   private:
--- a/launcher/net/NetJob.cpp
+++ b/launcher/net/NetJob.cpp
@ -36,11 +36,16 @@
 */

 #include "NetJob.h"
+#if defined(LAUNCHER_APPLICATION)
 #include "Application.h"
+#endif

-NetJob::NetJob(QString job_name, shared_qobject_ptr<QNetworkAccessManager> network)
-    : ConcurrentTask(nullptr, job_name, APPLICATION->settings()->get("NumberOfConcurrentDownloads").toInt()), m_network(network)
-{}
+NetJob::NetJob(QString job_name, shared_qobject_ptr<QNetworkAccessManager> network) : ConcurrentTask(nullptr, job_name), m_network(network)
+{
+#if defined(LAUNCHER_APPLICATION)
+    setMaxConcurrent(APPLICATION->settings()->get("NumberOfConcurrentDownloads").toInt());
+#endif
+}

 auto NetJob::addNetAction(NetAction::Ptr action) -> bool
 {
--- a/launcher/net/NetRequest.cpp
+++ b/launcher/net/NetRequest.cpp
@ -46,6 +46,7 @@
 #if defined(LAUNCHER_APPLICATION)
 #include "Application.h"
 #endif
+#include "BuildConfig.h"

 #include "net/NetAction.h"

--- a/launcher/ui/MainWindow.cpp
+++ b/launcher/ui/MainWindow.cpp
@ -219,7 +219,7 @@ MainWindow::MainWindow(QWidget* parent) : QMainWindow(parent), ui(new Ui::MainWi
        ui->actionDISCORD->setVisible(!BuildConfig.DISCORD_URL.isEmpty());
        ui->actionREDDIT->setVisible(!BuildConfig.SUBREDDIT_URL.isEmpty());

-        ui->actionCheckUpdate->setVisible(BuildConfig.UPDATER_ENABLED);
+        ui->actionCheckUpdate->setVisible(APPLICATION->updaterEnabled());

 #ifndef Q_OS_MAC
        ui->actionAddToPATH->setVisible(false);
@ -377,7 +377,7 @@ MainWindow::MainWindow(QWidget* parent) : QMainWindow(parent), ui(new Ui::MainWi
        updateNewsLabel();
    }

-    if (BuildConfig.UPDATER_ENABLED) {
+    if (APPLICATION->updaterEnabled()) {
        bool updatesAllowed = APPLICATION->updatesAreAllowed();
        updatesAllowedChanged(updatesAllowed);

@ -677,7 +677,7 @@ void MainWindow::repopulateAccountsMenu()

 void MainWindow::updatesAllowedChanged(bool allowed)
 {
-    if (!BuildConfig.UPDATER_ENABLED) {
+    if (!APPLICATION->updaterEnabled()) {
        return;
    }
    ui->actionCheckUpdate->setEnabled(allowed);
@ -1218,7 +1218,7 @@ void MainWindow::refreshInstances()

 void MainWindow::checkForUpdates()
 {
-    if (BuildConfig.UPDATER_ENABLED) {
+    if (APPLICATION->updaterEnabled()) {
        APPLICATION->triggerUpdateCheck();
    } else {
        qWarning() << "Updater not set up. Cannot check for updates.";
--- a/launcher/ui/dialogs/ProgressDialog.ui
+++ b/launcher/ui/dialogs/ProgressDialog.ui
@ -48,6 +48,9 @@
       <property name="text">
        <string>Global Task Status...</string>
       </property>
+       <property name="wordWrap">
+        <bool>true</bool>
+       </property>
      </widget>
     </item>
     <item>
@ -109,8 +112,8 @@
       <rect>
        <x>0</x>
        <y>0</y>
-        <width>464</width>
-        <height>96</height>
+        <width>460</width>
+        <height>108</height>
       </rect>
      </property>
      <layout class="QVBoxLayout" name="taskProgressLayout">
--- a/launcher/ui/dialogs/UpdateAvailableDialog.cpp
+++ b/launcher/ui/dialogs/UpdateAvailableDialog.cpp
@ -0,0 +1,63 @@
+// SPDX-FileCopyrightText: 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "UpdateAvailableDialog.h"
+#include <QPushButton>
+#include "Application.h"
+#include "BuildConfig.h"
+#include "Markdown.h"
+#include "ui_UpdateAvailableDialog.h"
+
+UpdateAvailableDialog::UpdateAvailableDialog(const QString& currentVersion,
+                                             const QString& availableVersion,
+                                             const QString& releaseNotes,
+                                             QWidget* parent)
+    : QDialog(parent), ui(new Ui::UpdateAvailableDialog)
+{
+    ui->setupUi(this);
+
+    QString launcherName = BuildConfig.LAUNCHER_DISPLAYNAME;
+
+    ui->headerLabel->setText(tr("A new version of %1 is available!").arg(launcherName));
+    ui->versionAvailableLabel->setText(
+        tr("Version %1 is now available - you have %2 . Would you like to download it now?").arg(availableVersion).arg(currentVersion));
+    ui->icon->setPixmap(APPLICATION->getThemedIcon("checkupdate").pixmap(64));
+
+    auto releaseNotesHtml = markdownToHTML(releaseNotes);
+    ui->releaseNotes->setHtml(releaseNotesHtml);
+    ui->releaseNotes->setOpenExternalLinks(true);
+
+    connect(ui->skipButton, &QPushButton::clicked, this, [this]() {
+        setResult(ResultCode::Skip);
+        done(ResultCode::Skip);
+    });
+
+    connect(ui->delayButton, &QPushButton::clicked, this, [this]() {
+        setResult(ResultCode::DontInstall);
+        done(ResultCode::DontInstall);
+    });
+
+    connect(ui->installButton, &QPushButton::clicked, this, [this]() {
+        setResult(ResultCode::Install);
+        done(ResultCode::Install);
+    });
+}
--- a/launcher/ui/dialogs/UpdateAvailableDialog.h
+++ b/launcher/ui/dialogs/UpdateAvailableDialog.h
@ -0,0 +1,48 @@
+// SPDX-FileCopyrightText: 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+#include <QDialog>
+
+namespace Ui {
+class UpdateAvailableDialog;
+}
+
+class UpdateAvailableDialog : public QDialog {
+    Q_OBJECT
+
+   public:
+    enum ResultCode {
+        Install = 10,
+        DontInstall = 11,
+        Skip = 12,
+    };
+
+    explicit UpdateAvailableDialog(const QString& currentVersion,
+                                   const QString& availableVersion,
+                                   const QString& releaseNotes,
+                                   QWidget* parent = 0);
+    ~UpdateAvailableDialog() = default;
+
+   private:
+    Ui::UpdateAvailableDialog* ui;
+};
--- a/launcher/ui/dialogs/UpdateAvailableDialog.ui
+++ b/launcher/ui/dialogs/UpdateAvailableDialog.ui
@ -0,0 +1,155 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>UpdateAvailableDialog</class>
+ <widget class="QDialog" name="UpdateAvailableDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>636</width>
+    <height>352</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Update Available</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_3">
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout" stretch="0,1">
+     <item>
+      <layout class="QVBoxLayout" name="leftsideLayout">
+       <item>
+        <widget class="QLabel" name="icon">
+         <property name="minimumSize">
+          <size>
+           <width>64</width>
+           <height>64</height>
+          </size>
+         </property>
+         <property name="text">
+          <string/>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="verticalSpacer">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>40</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QVBoxLayout" name="mainLayout">
+       <property name="leftMargin">
+        <number>9</number>
+       </property>
+       <property name="topMargin">
+        <number>9</number>
+       </property>
+       <property name="rightMargin">
+        <number>9</number>
+       </property>
+       <property name="bottomMargin">
+        <number>9</number>
+       </property>
+       <item>
+        <widget class="QLabel" name="headerLabel">
+         <property name="font">
+          <font>
+           <pointsize>11</pointsize>
+           <weight>75</weight>
+           <bold>true</bold>
+          </font>
+         </property>
+         <property name="text">
+          <string>A new version is available!</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLabel" name="versionAvailableLabel">
+         <property name="text">
+          <string>Version %1 is now available - you have %2 . Would you like to download it now?</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLabel" name="releaseNotesLabel">
+         <property name="font">
+          <font>
+           <weight>75</weight>
+           <bold>true</bold>
+          </font>
+         </property>
+         <property name="text">
+          <string>Release Notes:</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QTextBrowser" name="releaseNotes"/>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_2">
+     <item>
+      <widget class="QPushButton" name="skipButton">
+       <property name="text">
+        <string>Skip This Version</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="delayButton">
+       <property name="text">
+        <string>Remind Me Later</string>
+       </property>
+       <property name="checkable">
+        <bool>false</bool>
+       </property>
+       <property name="checked">
+        <bool>false</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="installButton">
+       <property name="text">
+        <string>Install Update</string>
+       </property>
+       <property name="default">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
--- a/launcher/updater/PrismExternalUpdater.cpp
+++ b/launcher/updater/PrismExternalUpdater.cpp
@ -0,0 +1,354 @@
+// SPDX-FileCopyrightText: 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "PrismExternalUpdater.h"
+#include <QCoreApplication>
+#include <QDateTime>
+#include <QDebug>
+#include <QDir>
+#include <QMessageBox>
+#include <QProcess>
+#include <QProgressDialog>
+#include <QSettings>
+#include <QTimer>
+#include <memory>
+
+#include "StringUtils.h"
+
+#include "BuildConfig.h"
+
+#include "ui/dialogs/UpdateAvailableDialog.h"
+
+class PrismExternalUpdater::Private {
+   public:
+    QDir appDir;
+    QDir dataDir;
+    QTimer updateTimer;
+    bool allowBeta;
+    bool autoCheck;
+    double updateInterval;
+    QDateTime lastCheck;
+    std::unique_ptr<QSettings> settings;
+
+    QWidget* parent;
+};
+
+PrismExternalUpdater::PrismExternalUpdater(QWidget* parent, const QString& appDir, const QString& dataDir)
+{
+    priv = new PrismExternalUpdater::Private();
+    priv->appDir = QDir(appDir);
+    priv->dataDir = QDir(dataDir);
+    auto settings_file = priv->dataDir.absoluteFilePath("prismlauncher_update.cfg");
+    priv->settings = std::make_unique<QSettings>(settings_file, QSettings::Format::IniFormat);
+    priv->allowBeta = priv->settings->value("allow_beta", false).toBool();
+    priv->autoCheck = priv->settings->value("auto_check", false).toBool();
+    bool interval_ok;
+    // default once per day
+    priv->updateInterval = priv->settings->value("update_interval", 86400).toInt(&interval_ok);
+    if (!interval_ok)
+        priv->updateInterval = 86400;
+    auto last_check = priv->settings->value("last_check");
+    if (!last_check.isNull() && last_check.isValid()) {
+        priv->lastCheck = QDateTime::fromString(last_check.toString(), Qt::ISODate);
+    }
+    priv->parent = parent;
+    connectTimer();
+    resetAutoCheckTimer();
+}
+
+PrismExternalUpdater::~PrismExternalUpdater()
+{
+    if (priv->updateTimer.isActive())
+        priv->updateTimer.stop();
+    disconnectTimer();
+    priv->settings->sync();
+    delete priv;
+}
+
+void PrismExternalUpdater::checkForUpdates()
+{
+    QProgressDialog progress(tr("Checking for updates..."), "", 0, 0, priv->parent);
+    progress.setCancelButton(nullptr);
+    progress.adjustSize();
+    progress.show();
+    QCoreApplication::processEvents();
+
+    QProcess proc;
+    auto exe_name = QStringLiteral("%1_updater").arg(BuildConfig.LAUNCHER_APP_BINARY_NAME);
+#if defined Q_OS_WIN32
+    exe_name.append(".exe");
+
+    auto env = QProcessEnvironment::systemEnvironment();
+    env.insert("__COMPAT_LAYER", "RUNASINVOKER");
+    proc.setProcessEnvironment(env);
+#else
+    exe_name = QString("bin/%1").arg(exe_name);
+#endif
+
+    QStringList args = { "--check-only", "--dir", priv->dataDir.absolutePath(), "--debug" };
+    if (priv->allowBeta)
+        args.append("--pre-release");
+
+    proc.start(priv->appDir.absoluteFilePath(exe_name), args);
+    auto result_start = proc.waitForStarted(5000);
+    if (!result_start) {
+        auto err = proc.error();
+        qDebug() << "Failed to start updater after 5 seconds."
+                 << "reason:" << err << proc.errorString();
+        auto msgBox =
+            QMessageBox(QMessageBox::Information, tr("Update Check Failed"),
+                        tr("Failed to start after 5 seconds\nReason: %1.").arg(proc.errorString()), QMessageBox::Ok, priv->parent);
+        msgBox.setMinimumWidth(460);
+        msgBox.adjustSize();
+        msgBox.exec();
+        priv->lastCheck = QDateTime::currentDateTime();
+        priv->settings->setValue("last_check", priv->lastCheck.toString(Qt::ISODate));
+        priv->settings->sync();
+        resetAutoCheckTimer();
+        return;
+    }
+    QCoreApplication::processEvents();
+
+    auto result_finished = proc.waitForFinished(60000);
+    if (!result_finished) {
+        proc.kill();
+        auto err = proc.error();
+        auto output = proc.readAll();
+        qDebug() << "Updater failed to close after 60 seconds."
+                 << "reason:" << err << proc.errorString();
+        auto msgBox =
+            QMessageBox(QMessageBox::Information, tr("Update Check Failed"),
+                        tr("Updater failed to close 60 seconds\nReason: %1.").arg(proc.errorString()), QMessageBox::Ok, priv->parent);
+        msgBox.setDetailedText(output);
+        msgBox.setMinimumWidth(460);
+        msgBox.adjustSize();
+        msgBox.exec();
+        priv->lastCheck = QDateTime::currentDateTime();
+        priv->settings->setValue("last_check", priv->lastCheck.toString(Qt::ISODate));
+        priv->settings->sync();
+        resetAutoCheckTimer();
+        return;
+    }
+
+    auto exit_code = proc.exitCode();
+
+    auto std_output = proc.readAllStandardOutput();
+    auto std_error = proc.readAllStandardError();
+
+    progress.hide();
+    QCoreApplication::processEvents();
+
+    switch (exit_code) {
+        case 0:
+            // no update available
+            {
+                qDebug() << "No update available";
+                auto msgBox = QMessageBox(QMessageBox::Information, tr("No Update Available"), tr("You are running the latest version."),
+                                          QMessageBox::Ok, priv->parent);
+                msgBox.setMinimumWidth(460);
+                msgBox.adjustSize();
+                msgBox.exec();
+            }
+            break;
+        case 1:
+            // there was an error
+            {
+                qDebug() << "Updater subprocess error" << qPrintable(std_error);
+                auto msgBox = QMessageBox(QMessageBox::Warning, tr("Update Check Error"),
+                                          tr("There was an error running the update check."), QMessageBox::Ok, priv->parent);
+                msgBox.setDetailedText(QString(std_error));
+                msgBox.setMinimumWidth(460);
+                msgBox.adjustSize();
+                msgBox.exec();
+            }
+            break;
+        case 100:
+            // update available
+            {
+                auto [first_line, remainder1] = StringUtils::splitFirst(std_output, '\n');
+                auto [second_line, remainder2] = StringUtils::splitFirst(remainder1, '\n');
+                auto [third_line, release_notes] = StringUtils::splitFirst(remainder2, '\n');
+                auto version_name = StringUtils::splitFirst(first_line, ": ").second.trimmed();
+                auto version_tag = StringUtils::splitFirst(second_line, ": ").second.trimmed();
+                auto release_timestamp = QDateTime::fromString(StringUtils::splitFirst(third_line, ": ").second.trimmed(), Qt::ISODate);
+                qDebug() << "Update available:" << version_name << version_tag << release_timestamp;
+                qDebug() << "Update release notes:" << release_notes;
+
+                offerUpdate(version_name, version_tag, release_notes);
+            }
+            break;
+        default:
+            // unknown error code
+            {
+                qDebug() << "Updater exited with unknown code" << exit_code;
+                auto msgBox =
+                    QMessageBox(QMessageBox::Information, tr("Unknown Update Error"),
+                                tr("The updater exited with an unknown condition.\nExit Code: %1").arg(QString::number(exit_code)),
+                                QMessageBox::Ok, priv->parent);
+                auto detail_txt = tr("StdOut: %1\nStdErr: %2").arg(QString(std_output)).arg(QString(std_error));
+                msgBox.setDetailedText(detail_txt);
+                msgBox.setMinimumWidth(460);
+                msgBox.adjustSize();
+                msgBox.exec();
+            }
+    }
+    priv->lastCheck = QDateTime::currentDateTime();
+    priv->settings->setValue("last_check", priv->lastCheck.toString(Qt::ISODate));
+    priv->settings->sync();
+    resetAutoCheckTimer();
+}
+
+bool PrismExternalUpdater::getAutomaticallyChecksForUpdates()
+{
+    return priv->autoCheck;
+}
+
+double PrismExternalUpdater::getUpdateCheckInterval()
+{
+    return priv->updateInterval;
+}
+
+bool PrismExternalUpdater::getBetaAllowed()
+{
+    return priv->allowBeta;
+}
+
+void PrismExternalUpdater::setAutomaticallyChecksForUpdates(bool check)
+{
+    priv->autoCheck = check;
+    priv->settings->setValue("auto_check", check);
+    priv->settings->sync();
+    resetAutoCheckTimer();
+}
+
+void PrismExternalUpdater::setUpdateCheckInterval(double seconds)
+{
+    priv->updateInterval = seconds;
+    priv->settings->setValue("update_interval", seconds);
+    priv->settings->sync();
+    resetAutoCheckTimer();
+}
+
+void PrismExternalUpdater::setBetaAllowed(bool allowed)
+{
+    priv->allowBeta = allowed;
+    priv->settings->setValue("auto_beta", allowed);
+    priv->settings->sync();
+}
+
+void PrismExternalUpdater::resetAutoCheckTimer()
+{
+    if (priv->autoCheck) {
+        int timeoutDuration = 0;
+        auto now = QDateTime::currentDateTime();
+        if (priv->lastCheck.isValid()) {
+            auto diff = priv->lastCheck.secsTo(now);
+            auto secs_left = priv->updateInterval - diff;
+            if (secs_left < 0)
+                secs_left = 0;
+            timeoutDuration = secs_left * 1000;  // to msec
+        }
+        qDebug() << "Auto update timer starting," << timeoutDuration / 1000 << "seconds left";
+        priv->updateTimer.start(timeoutDuration);
+    } else {
+        if (priv->updateTimer.isActive())
+            priv->updateTimer.stop();
+    }
+}
+
+void PrismExternalUpdater::connectTimer()
+{
+    connect(&priv->updateTimer, &QTimer::timeout, this, &PrismExternalUpdater::autoCheckTimerFired);
+}
+
+void PrismExternalUpdater::disconnectTimer()
+{
+    disconnect(&priv->updateTimer, &QTimer::timeout, this, &PrismExternalUpdater::autoCheckTimerFired);
+}
+
+void PrismExternalUpdater::autoCheckTimerFired()
+{
+    qDebug() << "Auto update Timer fired";
+    checkForUpdates();
+}
+
+void PrismExternalUpdater::offerUpdate(const QString& version_name, const QString& version_tag, const QString& release_notes)
+{
+    priv->settings->beginGroup("skip");
+    auto should_skip = priv->settings->value(version_tag, false).toBool();
+    priv->settings->endGroup();
+
+    if (should_skip) {
+        auto msgBox = QMessageBox(QMessageBox::Information, tr("No Update Available"), tr("There are no new updates available."),
+                                  QMessageBox::Ok, priv->parent);
+        msgBox.setMinimumWidth(460);
+        msgBox.adjustSize();
+        msgBox.exec();
+        return;
+    }
+
+    UpdateAvailableDialog dlg(BuildConfig.printableVersionString(), version_name, release_notes);
+
+    auto result = dlg.exec();
+    qDebug() << "offer dlg result" << result;
+    switch (result) {
+        case UpdateAvailableDialog::Install: {
+            performUpdate(version_tag);
+            return;
+        }
+        case UpdateAvailableDialog::Skip: {
+            priv->settings->beginGroup("skip");
+            priv->settings->setValue(version_tag, true);
+            priv->settings->endGroup();
+            priv->settings->sync();
+            return;
+        }
+        case UpdateAvailableDialog::DontInstall: {
+            return;
+        }
+    }
+}
+
+void PrismExternalUpdater::performUpdate(const QString& version_tag)
+{
+    QProcess proc;
+    auto exe_name = QStringLiteral("%1_updater").arg(BuildConfig.LAUNCHER_APP_BINARY_NAME);
+#if defined Q_OS_WIN32
+    exe_name.append(".exe");
+
+    auto env = QProcessEnvironment::systemEnvironment();
+    env.insert("__COMPAT_LAYER", "RUNASINVOKER");
+    proc.setProcessEnvironment(env);
+#else
+    exe_name = QString("bin/%1").arg(exe_name);
+#endif
+
+    QStringList args = { "--dir", priv->dataDir.absolutePath(), "--install-version", version_tag };
+    if (priv->allowBeta)
+        args.append("--pre-release");
+
+    auto result = proc.startDetached(priv->appDir.absoluteFilePath(exe_name), args);
+    if (!result) {
+        qDebug() << "Failed to start updater:" << proc.error() << proc.errorString();
+    }
+    QCoreApplication::exit();
+}
--- a/launcher/updater/PrismExternalUpdater.h
+++ b/launcher/updater/PrismExternalUpdater.h
@ -0,0 +1,95 @@
+// SPDX-FileCopyrightText: 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#pragma once
+
+#include <QObject>
+
+#include "ExternalUpdater.h"
+
+/*!
+ * An implementation for the updater on windows and linux that uses out external updater.
+ */
+
+class PrismExternalUpdater : public ExternalUpdater {
+    Q_OBJECT
+
+   public:
+    PrismExternalUpdater(QWidget* parent, const QString& appDir, const QString& dataDir);
+    ~PrismExternalUpdater() override;
+
+    /*!
+     * Check for updates manually, showing the user a progress bar and an alert if no updates are found.
+     */
+    void checkForUpdates() override;
+
+    /*!
+     * Indicates whether or not to check for updates automatically.
+     */
+    bool getAutomaticallyChecksForUpdates() override;
+
+    /*!
+     * Indicates the current automatic update check interval in seconds.
+     */
+    double getUpdateCheckInterval() override;
+
+    /*!
+     * Indicates whether or not beta updates should be checked for in addition to regular releases.
+     */
+    bool getBetaAllowed() override;
+
+    /*!
+     * Set whether or not to check for updates automatically.
+     *
+     * The update schedule cycle will be reset in a short delay after the property’s new value is set. This is to allow
+     * reverting this property without kicking off a schedule change immediately."
+     */
+    void setAutomaticallyChecksForUpdates(bool check) override;
+
+    /*!
+     * Set the current automatic update check interval in seconds.
+     *
+     * The update schedule cycle will be reset in a short delay after the property’s new value is set. This is to allow
+     * reverting this property without kicking off a schedule change immediately."
+     */
+    void setUpdateCheckInterval(double seconds) override;
+
+    /*!
+     * Set whether or not beta updates should be checked for in addition to regular releases.
+     */
+    void setBetaAllowed(bool allowed) override;
+
+    void resetAutoCheckTimer();
+    void disconnectTimer();
+    void connectTimer();
+
+    void offerUpdate(const QString& version_name, const QString& version_tag, const QString& release_notes);
+    void performUpdate(const QString& version_tag);
+
+   public slots:
+    void autoCheckTimerFired();
+
+   private:
+    class Private;
+
+    Private* priv;
+};
--- a/launcher/updater/prismupdater/GitHubRelease.cpp
+++ b/launcher/updater/prismupdater/GitHubRelease.cpp
@ -0,0 +1,93 @@
+// SPDX-FileCopyrightText: 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "GitHubRelease.h"
+
+QDebug operator<<(QDebug debug, const GitHubReleaseAsset& asset)
+{
+    QDebugStateSaver saver(debug);
+    debug.nospace() << "GitHubReleaseAsset( "
+                       "id: "
+                    << asset.id
+                    << ", "
+                       "name "
+                    << asset.name
+                    << ", "
+                       "label: "
+                    << asset.label
+                    << ", "
+                       "content_type: "
+                    << asset.content_type
+                    << ", "
+                       "size: "
+                    << asset.size
+                    << ", "
+                       "created_at: "
+                    << asset.created_at
+                    << ", "
+                       "updated_at: "
+                    << asset.updated_at
+                    << ", "
+                       "browser_download_url: "
+                    << asset.browser_download_url
+                    << " "
+                       ")";
+    return debug;
+}
+
+QDebug operator<<(QDebug debug, const GitHubRelease& rls)
+{
+    QDebugStateSaver saver(debug);
+    debug.nospace() << "GitHubRelease( "
+                       "id: "
+                    << rls.id
+                    << ", "
+                       "name "
+                    << rls.name
+                    << ", "
+                       "tag_name: "
+                    << rls.tag_name
+                    << ", "
+                       "created_at: "
+                    << rls.created_at
+                    << ", "
+                       "published_at: "
+                    << rls.published_at
+                    << ", "
+                       "prerelease: "
+                    << rls.prerelease
+                    << ", "
+                       "draft: "
+                    << rls.draft
+                    << ", "
+                       "version"
+                    << rls.version
+                    << ", "
+                       "body: "
+                    << rls.body
+                    << ", "
+                       "assets: "
+                    << rls.assets
+                    << " "
+                       ")";
+    return debug;
+}
--- a/launcher/updater/prismupdater/GitHubRelease.h
+++ b/launcher/updater/prismupdater/GitHubRelease.h
@ -0,0 +1,61 @@
+// SPDX-FileCopyrightText: 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#pragma once
+#include <QDateTime>
+#include <QList>
+#include <QString>
+
+#include <QDebug>
+
+#include "Version.h"
+
+struct GitHubReleaseAsset {
+    int id = -1;
+    QString name;
+    QString label;
+    QString content_type;
+    int size;
+    QDateTime created_at;
+    QDateTime updated_at;
+    QString browser_download_url;
+
+    bool isValid() { return id > 0; }
+};
+
+struct GitHubRelease {
+    int id = -1;
+    QString name;
+    QString tag_name;
+    QDateTime created_at;
+    QDateTime published_at;
+    bool prerelease;
+    bool draft;
+    QString body;
+    QList<GitHubReleaseAsset> assets;
+    Version version;
+
+    bool isValid() const { return id > 0; }
+};
+
+QDebug operator<<(QDebug debug, const GitHubReleaseAsset& rls);
+QDebug operator<<(QDebug debug, const GitHubRelease& rls);
--- a/launcher/updater/prismupdater/PrismUpdater.cpp
+++ b/launcher/updater/prismupdater/PrismUpdater.cpp
--- a/launcher/updater/prismupdater/PrismUpdater.h
+++ b/launcher/updater/prismupdater/PrismUpdater.h
@ -0,0 +1,143 @@
+// SPDX-FileCopyrightText: 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#pragma once
+
+#include <QtCore>
+
+#include <QApplication>
+#include <QDataStream>
+#include <QDateTime>
+#include <QDebug>
+#include <QFlag>
+#include <QIcon>
+#include <QLocalSocket>
+#include <QNetworkAccessManager>
+#include <QNetworkReply>
+#include <QUrl>
+#include <memory>
+#include <optional>
+
+#include "QObjectPtr.h"
+#include "net/Download.h"
+
+#define PRISM_EXTERNAL_EXE
+#include "FileSystem.h"
+
+#include "GitHubRelease.h"
+
+class PrismUpdaterApp : public QApplication {
+    // friends for the purpose of limiting access to deprecated stuff
+    Q_OBJECT
+   public:
+    enum Status { Starting, Failed, Succeeded, Initialized, Aborted };
+    PrismUpdaterApp(int& argc, char** argv);
+    virtual ~PrismUpdaterApp();
+    void loadReleaseList();
+    void run();
+    Status status() const { return m_status; }
+
+   private:
+    void fail(const QString& reason);
+    void abort(const QString& reason);
+    void showFatalErrorMessage(const QString& title, const QString& content);
+
+    bool loadPrismVersionFromExe(const QString& exe_path);
+
+    void downloadReleasePage(const QString& api_url, int page);
+    int parseReleasePage(const QByteArray* response);
+
+    bool needUpdate(const GitHubRelease& release);
+
+    GitHubRelease getLatestRelease();
+    GitHubRelease selectRelease();
+    QList<GitHubRelease> newerReleases();
+    QList<GitHubRelease> nonDraftReleases();
+
+    void printReleases();
+
+    QList<GitHubReleaseAsset> validReleaseArtifacts(const GitHubRelease& release);
+    GitHubReleaseAsset selectAsset(const QList<GitHubReleaseAsset>& assets);
+    void performUpdate(const GitHubRelease& release);
+    void performInstall(QFileInfo file);
+    void unpackAndInstall(QFileInfo file);
+    void backupAppDir();
+    std::optional<QDir> unpackArchive(QFileInfo file);
+
+    QFileInfo downloadAsset(const GitHubReleaseAsset& asset);
+    bool callAppImageUpdate();
+
+    void moveAndFinishUpdate(QDir target);
+
+   public slots:
+    void downloadError(QString reason);
+
+   private:
+    const QString& root() { return m_rootPath; }
+
+    bool isPortable() { return m_isPortable; }
+
+    void clearUpdateLog();
+    void logUpdate(const QString& msg);
+
+    QString m_rootPath;
+    QString m_dataPath;
+    bool m_isPortable = false;
+    bool m_isAppimage = false;
+    bool m_isFlatpak = false;
+    QString m_appimagePath;
+    QString m_prismExecutable;
+    QUrl m_prismRepoUrl;
+    Version m_userSelectedVersion;
+    bool m_checkOnly;
+    bool m_forceUpdate;
+    bool m_printOnly;
+    bool m_selectUI;
+    bool m_allowDowngrade;
+    bool m_allowPreRelease;
+
+    QString m_updateLogPath;
+
+    QString m_prismBinaryName;
+    QString m_prismVersion;
+    int m_prismVersionMajor = -1;
+    int m_prismVersionMinor = -1;
+    QString m_prsimVersionChannel;
+    QString m_prismGitCommit;
+
+    GitHubRelease m_install_release;
+
+    Status m_status = Status::Starting;
+    shared_qobject_ptr<QNetworkAccessManager> m_network;
+    QString m_current_url;
+    Task::Ptr m_current_task;
+    QList<GitHubRelease> m_releases;
+
+   public:
+    std::unique_ptr<QFile> logFile;
+    bool logToConsole = false;
+
+#if defined Q_OS_WIN32
+    // used on Windows to attach the standard IO streams
+    bool consoleAttached = false;
+#endif
+};
--- a/launcher/updater/prismupdater/SelectReleaseDialog.ui
+++ b/launcher/updater/prismupdater/SelectReleaseDialog.ui
@ -0,0 +1,89 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>SelectReleaseDialog</class>
+ <widget class="QDialog" name="SelectReleaseDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>468</width>
+    <height>385</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Select Release to Install</string>
+  </property>
+  <property name="sizeGripEnabled">
+   <bool>true</bool>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="0,0,1,0">
+   <item>
+    <widget class="QLabel" name="eplainLabel">
+     <property name="text">
+      <string>Please select the release you wish to update to.</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QTreeWidget" name="versionsTree">
+     <property name="alternatingRowColors">
+      <bool>true</bool>
+     </property>
+     <column>
+      <property name="text">
+       <string notr="true">1</string>
+      </property>
+     </column>
+    </widget>
+   </item>
+   <item>
+    <widget class="QTextBrowser" name="changelogTextBrowser"/>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>SelectReleaseDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>SelectReleaseDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
--- a/launcher/updater/prismupdater/UpdaterDialogs.cpp
+++ b/launcher/updater/prismupdater/UpdaterDialogs.cpp
@ -0,0 +1,168 @@
+// SPDX-FileCopyrightText: 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "UpdaterDialogs.h"
+
+#include "ui_SelectReleaseDialog.h"
+
+#include <QTextBrowser>
+#include "Markdown.h"
+
+SelectReleaseDialog::SelectReleaseDialog(const Version& current_version, const QList<GitHubRelease>& releases, QWidget* parent)
+    : QDialog(parent), m_releases(releases), m_currentVersion(current_version), ui(new Ui::SelectReleaseDialog)
+{
+    ui->setupUi(this);
+
+    ui->changelogTextBrowser->setOpenExternalLinks(true);
+    ui->changelogTextBrowser->setLineWrapMode(QTextBrowser::LineWrapMode::WidgetWidth);
+    ui->changelogTextBrowser->setVerticalScrollBarPolicy(Qt::ScrollBarPolicy::ScrollBarAsNeeded);
+
+    ui->versionsTree->setColumnCount(2);
+
+    ui->versionsTree->header()->setSectionResizeMode(0, QHeaderView::Stretch);
+    ui->versionsTree->header()->setSectionResizeMode(1, QHeaderView::ResizeToContents);
+    ui->versionsTree->setHeaderLabels({ tr("Version"), tr("Published Date") });
+    ui->versionsTree->header()->setStretchLastSection(false);
+
+    ui->eplainLabel->setText(tr("Select a version to install.\n"
+                                "\n"
+                                "Currently installed version: %1")
+                                 .arg(m_currentVersion.toString()));
+
+    loadReleases();
+
+    connect(ui->versionsTree, &QTreeWidget::currentItemChanged, this, &SelectReleaseDialog::selectionChanged);
+
+    connect(ui->buttonBox, &QDialogButtonBox::accepted, this, &SelectReleaseDialog::accept);
+    connect(ui->buttonBox, &QDialogButtonBox::rejected, this, &SelectReleaseDialog::reject);
+}
+
+SelectReleaseDialog::~SelectReleaseDialog()
+{
+    delete ui;
+}
+
+void SelectReleaseDialog::loadReleases()
+{
+    for (auto rls : m_releases) {
+        appendRelease(rls);
+    }
+}
+
+void SelectReleaseDialog::appendRelease(GitHubRelease const& release)
+{
+    auto rls_item = new QTreeWidgetItem(ui->versionsTree);
+    rls_item->setText(0, release.tag_name);
+    rls_item->setExpanded(true);
+    rls_item->setText(1, release.published_at.toString());
+    rls_item->setData(0, Qt::UserRole, QVariant(release.id));
+
+    ui->versionsTree->addTopLevelItem(rls_item);
+}
+
+GitHubRelease SelectReleaseDialog::getRelease(QTreeWidgetItem* item)
+{
+    int id = item->data(0, Qt::UserRole).toInt();
+    GitHubRelease release;
+    for (auto rls : m_releases) {
+        if (rls.id == id)
+            release = rls;
+    }
+    return release;
+}
+
+void SelectReleaseDialog::selectionChanged(QTreeWidgetItem* current, QTreeWidgetItem* previous)
+{
+    GitHubRelease release = getRelease(current);
+    QString body = markdownToHTML(release.body.toUtf8());
+    m_selectedRelease = release;
+
+    ui->changelogTextBrowser->setHtml(body);
+}
+
+SelectReleaseAssetDialog::SelectReleaseAssetDialog(const QList<GitHubReleaseAsset>& assets, QWidget* parent)
+    : QDialog(parent), m_assets(assets), ui(new Ui::SelectReleaseDialog)
+{
+    ui->setupUi(this);
+
+    ui->changelogTextBrowser->setOpenExternalLinks(true);
+    ui->changelogTextBrowser->setLineWrapMode(QTextBrowser::LineWrapMode::WidgetWidth);
+    ui->changelogTextBrowser->setVerticalScrollBarPolicy(Qt::ScrollBarPolicy::ScrollBarAsNeeded);
+
+    ui->versionsTree->setColumnCount(2);
+
+    ui->versionsTree->header()->setSectionResizeMode(0, QHeaderView::Stretch);
+    ui->versionsTree->header()->setSectionResizeMode(1, QHeaderView::ResizeToContents);
+    ui->versionsTree->setHeaderLabels({ tr("Version"), tr("Published Date") });
+    ui->versionsTree->header()->setStretchLastSection(false);
+
+    ui->eplainLabel->setText(tr("Select a version to install."));
+
+    ui->changelogTextBrowser->setHidden(true);
+
+    loadAssets();
+
+    connect(ui->versionsTree, &QTreeWidget::currentItemChanged, this, &SelectReleaseAssetDialog::selectionChanged);
+
+    connect(ui->buttonBox, &QDialogButtonBox::accepted, this, &SelectReleaseAssetDialog::accept);
+    connect(ui->buttonBox, &QDialogButtonBox::rejected, this, &SelectReleaseAssetDialog::reject);
+}
+
+SelectReleaseAssetDialog::~SelectReleaseAssetDialog()
+{
+    delete ui;
+}
+
+void SelectReleaseAssetDialog::loadAssets()
+{
+    for (auto rls : m_assets) {
+        appendAsset(rls);
+    }
+}
+
+void SelectReleaseAssetDialog::appendAsset(GitHubReleaseAsset const& asset)
+{
+    auto rls_item = new QTreeWidgetItem(ui->versionsTree);
+    rls_item->setText(0, asset.name);
+    rls_item->setExpanded(true);
+    rls_item->setText(1, asset.updated_at.toString());
+    rls_item->setData(0, Qt::UserRole, QVariant(asset.id));
+
+    ui->versionsTree->addTopLevelItem(rls_item);
+}
+
+GitHubReleaseAsset SelectReleaseAssetDialog::getAsset(QTreeWidgetItem* item)
+{
+    int id = item->data(0, Qt::UserRole).toInt();
+    GitHubReleaseAsset selected_asset;
+    for (auto asset : m_assets) {
+        if (asset.id == id)
+            selected_asset = asset;
+    }
+    return selected_asset;
+}
+
+void SelectReleaseAssetDialog::selectionChanged(QTreeWidgetItem* current, QTreeWidgetItem* previous)
+{
+    GitHubReleaseAsset asset = getAsset(current);
+    m_selectedAsset = asset;
+}
--- a/launcher/updater/prismupdater/UpdaterDialogs.h
+++ b/launcher/updater/prismupdater/UpdaterDialogs.h
@ -0,0 +1,75 @@
+// SPDX-FileCopyrightText: 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2023 Rachel Powers <508861+Ryex@users.noreply.github.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#pragma once
+
+#include <QDialog>
+#include <QTreeWidgetItem>
+
+#include "GitHubRelease.h"
+#include "Version.h"
+
+namespace Ui {
+class SelectReleaseDialog;
+}
+
+class SelectReleaseDialog : public QDialog {
+    Q_OBJECT
+
+   public:
+    explicit SelectReleaseDialog(const Version& cur_version, const QList<GitHubRelease>& releases, QWidget* parent = 0);
+    ~SelectReleaseDialog();
+
+    void loadReleases();
+    void appendRelease(GitHubRelease const& release);
+    GitHubRelease selectedRelease() { return m_selectedRelease; }
+   private slots:
+    GitHubRelease getRelease(QTreeWidgetItem* item);
+    void selectionChanged(QTreeWidgetItem* current, QTreeWidgetItem* previous);
+
+   protected:
+    QList<GitHubRelease> m_releases;
+    GitHubRelease m_selectedRelease;
+    Version m_currentVersion;
+
+    Ui::SelectReleaseDialog* ui;
+};
+
+class SelectReleaseAssetDialog : public QDialog {
+    Q_OBJECT
+   public:
+    explicit SelectReleaseAssetDialog(const QList<GitHubReleaseAsset>& assets, QWidget* parent = 0);
+    ~SelectReleaseAssetDialog();
+
+    void loadAssets();
+    void appendAsset(GitHubReleaseAsset const& asset);
+    GitHubReleaseAsset selectedAsset() { return m_selectedAsset; }
+   private slots:
+    GitHubReleaseAsset getAsset(QTreeWidgetItem* item);
+    void selectionChanged(QTreeWidgetItem* current, QTreeWidgetItem* previous);
+
+   protected:
+    QList<GitHubReleaseAsset> m_assets;
+    GitHubReleaseAsset m_selectedAsset;
+
+    Ui::SelectReleaseDialog* ui;
+};
--- a/launcher/updater/prismupdater/updater.exe.manifest
+++ b/launcher/updater/prismupdater/updater.exe.manifest
@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <application xmlns="urn:schemas-microsoft-com:asm.v3">
+    <windowsSettings>
+    </windowsSettings>
+  </application>
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- Windows 10, Windows 11 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
+      <!-- Windows 8.1 -->
+      <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
+      <!-- Windows 8 -->
+      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+      <!-- Windows 7 -->
+      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+    </application>
+  </compatibility>
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
+    <security>
+      <requestedPrivileges>
+        <requestedExecutionLevel level="asInvoker" uiAccess="false"/>
+       </requestedPrivileges>
+    </security>
+  </trustInfo>
+</assembly>
--- a/launcher/updater/prismupdater/updater_main.cpp
+++ b/launcher/updater/prismupdater/updater_main.cpp
@ -0,0 +1,40 @@
+// SPDX-FileCopyrightText: 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
+//
+// SPDX-License-Identifier: GPL-3.0-only
+
+/*
+ *  Prism Launcher - Minecraft Launcher
+ *  Copyright (C) 2022 Rachel Powers <508861+Ryex@users.noreply.github.com>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, version 3.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "PrismUpdater.h"
+int main(int argc, char* argv[])
+{
+    PrismUpdaterApp wUpApp(argc, argv);
+
+    switch (wUpApp.status()) {
+        case PrismUpdaterApp::Starting:
+        case PrismUpdaterApp::Initialized: {
+            return wUpApp.exec();
+        }
+        case PrismUpdaterApp::Failed:
+            return 1;
+        case PrismUpdaterApp::Succeeded:
+            return 0;
+        default:
+            return -1;
+    }
+}
--- a/program_info/win_install.nsi.in
+++ b/program_info/win_install.nsi.in
@ -350,6 +350,7 @@ Section "@Launcher_DisplayName@"

  File "@Launcher_APP_BINARY_NAME@.exe"
  File "@Launcher_APP_BINARY_NAME@_filelink.exe"
+  File "@Launcher_APP_BINARY_NAME@_updater.exe"
  File "qt.conf"
  File "qtlogging.ini"
  File *.dll
@ -435,6 +436,7 @@ Section "Uninstall"

  Delete $INSTDIR\@Launcher_APP_BINARY_NAME@.exe
  Delete $INSTDIR\@Launcher_APP_BINARY_NAME@_filelink.exe
+  Delete $INSTDIR\@Launcher_APP_BINARY_NAME@_updater.exe
  Delete $INSTDIR\qt.conf
  Delete $INSTDIR\*.dll

@ -472,7 +474,6 @@ Function .onInit
 ${GetParameters} $R0
 ${GetOptions} $R0 "/NoShortcuts" $R1
 ${IfNot} ${Errors}
-${OrIf} ${FileExists} "$InstDir\@Launcher_APP_BINARY_NAME@.exe"
  !insertmacro UnselectSection ${SM_SHORTCUTS}
  !insertmacro UnselectSection ${DESKTOP_SHORTCUTS}
 ${EndIf}