Print warning if preview version

.vscode/launch.json

@@ -2,15 +2,16 @@
     "version": "0.2.0",
     "configurations": [
         {
-            "name": ".NET Core Launch (console)",
+            "name": "Run func cli (console)",
             "type": "coreclr",
             "request": "launch",
             "preLaunchTask": "build",
-            // If you have changed target frameworks, make sure to update the program path.
-            "program": "${workspaceFolder}/out/bin/Azure.Functions.Cli/debug_net8.0/func.dll",
+            "program": "${workspaceFolder}/out/bin/Azure.Functions.Cli/debug/func.dll",
             "env": {
                 "CLI_DEBUG": "1"
             },
+            // use `--script-root` to set func app directory e.g.
+            // "args": "${input:funcArgs} --script-root ${workspaceFolder}/_testapp",
             "args": "${input:funcArgs}",
             "cwd": "${workspaceFolder}/src/Cli/func",
             "console": "internalConsole",

src/Cli/func/Actions/HelpAction.cs

@@ -177,6 +177,7 @@ private void DisplayGeneralHelp()
                 .Where(c => c != Context.None)
                 .Distinct()
                 .OrderBy(c => c.ToLowerCaseString());
+            Utilities.WarnIfPreviewVersion();
             Utilities.PrintVersion();
             ColoredConsole
                 .WriteLine("Usage: func [context] [context] <action> [-/--options]")

src/Cli/func/Actions/HostActions/StartHostAction.cs

@@ -400,13 +400,15 @@ public override async Task RunAsync()
         {
             await PreRunConditions();
             var isVerbose = VerboseLogging.HasValue && VerboseLogging.Value;
-            
+
             // Return if running is delegated to another version of Core Tools
             if (await TryHandleInProcDotNetLaunchAsync())
             {
                 return;
             }
 
+            Utilities.WarnIfPreviewVersion();
+
             if (isVerbose || EnvironmentHelper.GetEnvironmentVariableAsBool(Constants.DisplayLogo))
             {
                 Utilities.PrintLogo();

src/Cli/func/Actions/LocalActions/InitAction.cs

@@ -161,6 +161,8 @@ public override ICommandLineParserResult ParseArgs(string[] args)
 
         public override async Task RunAsync()
         {
+            Utilities.WarnIfPreviewVersion();
+
             if (SourceControl != SourceControl.Git)
             {
                 throw new Exception("Only Git is supported right now for vsc");

src/Cli/func/Azure.Functions.Cli.csproj

@@ -20,14 +20,18 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <BuildNumber Condition=" '$(BuildNumber)' == '' ">1</BuildNumber>
+    <!-- Base version components -->
     <MajorMinorProductVersion>4.0</MajorMinorProductVersion>
-    <Version>$(MajorMinorProductVersion).$(BuildNumber)</Version>
+    <BuildNumber Condition=" '$(BuildNumber)' == '' ">1</BuildNumber>
+    <CommitHash Condition="$(CommitHash) == ''">N/A</CommitHash>
+
+    <!-- Final version properties -->
+    <Version>$(MajorMinorProductVersion).$(BuildNumber)-preview1</Version>
     <AssemblyVersion>$(MajorMinorProductVersion).$(BuildNumber)</AssemblyVersion>
     <FileVersion>$(MajorMinorProductVersion).$(BuildNumber)</FileVersion>
-    <CommitHash Condition="$(CommitHash) == ''">N/A</CommitHash>
+
+    <InformationalVersion>$(Version) Commit hash: $(CommitHash) $(IntegrationBuildNumberInfo)</InformationalVersion>
     <IntegrationBuildNumberInfo Condition="$(IntegrationBuildNumber) != ''">Integration build number: $(IntegrationBuildNumber)</IntegrationBuildNumberInfo>
-    <InformationalVersion>$(FileVersion) Commit hash: $(CommitHash) $(IntegrationBuildNumberInfo)</InformationalVersion>
   </PropertyGroup>
 
   <ItemGroup>

src/Cli/func/Common/Constants.cs

@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Reflection;
+using System.Text.RegularExpressions;
 using Azure.Functions.Cli.Helpers;
 
 namespace Azure.Functions.Cli.Common
@@ -94,17 +95,28 @@ internal static class Constants
         public const string Dotnet = "dotnet";
         public const string InProcDotNet8EnabledSetting = "FUNCTIONS_INPROC_NET8_ENABLED";
         public const string AzureDevSessionsRemoteHostName = "AzureDevSessionsRemoteHostName";
-        public const string AzureDevSessionsPortSuffixPlaceholder = "<port>";
+        public const string AzureDevSessionsPortSuffixPlaceholder = "<port>"; // forwardedHttpUrl sample format: https://n12abc3t-<port>.asse.devtunnels.ms/
         public const string GitHubReleaseApiUrl = "https://api.github.com/repos/Azure/azure-functions-core-tools/releases/latest";
+        public const string PreviewVersionSuffixLabel = "preview";
 
-        // Sample format https://n12abc3t-<port>.asse.devtunnels.ms/
-
+        private static readonly string _cliVersion = GetSemanticVersion();
+        public static string CliVersion => _cliVersion;
+        public static string CliDetailedVersion = typeof(Constants).Assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion ?? string.Empty;
+        public static string CliUserAgent = $"functions-core-tools/{CliVersion}";
 
-        public static string CliVersion => typeof(Constants).GetTypeInfo().Assembly.GetName().Version.ToString(3);
+        // Helper method to extract version from CliDetailedVersion
+        private static string GetSemanticVersion()
+        {
+            var infoVersion = typeof(Constants).Assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion;
 
-        public static string CliDetailedVersion = typeof(Constants).Assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion ?? string.Empty;
+            if (string.IsNullOrEmpty(infoVersion))
+            {
+                return Assembly.GetExecutingAssembly().GetName().Version.ToString(3);
+            }
 
-        public static string CliUserAgent = $"functions-core-tools/{Constants.CliVersion}";
+            var match = Regex.Match(infoVersion, @"^(\S+)");
+            return match.Success ? match.Groups[1].Value : infoVersion;
+        }
 
         public static readonly Dictionary<WorkerRuntime, IEnumerable<string>> WorkerRuntimeImages = new Dictionary<WorkerRuntime, IEnumerable<string>>
         {

src/Cli/func/Common/Utilities.cs

@@ -53,6 +53,28 @@ internal static void PrintVersion()
                 .WriteLine($"Function Runtime Version: {ScriptHost.Version}\n".DarkGray());
         }
 
+        internal static void WarnIfPreviewVersion()
+        {
+            if (!Constants.CliVersion.Contains(Constants.PreviewVersionSuffixLabel, StringComparison.OrdinalIgnoreCase))
+            {
+                return;
+            }
+
+            ColoredConsole
+                .WriteLine("You are running a preview version of Azure Functions Core Tools.".DarkYellow());
+
+            bool isLinux = RuntimeInformation.IsOSPlatform(OSPlatform.Linux);
+            Architecture arch = RuntimeInformation.ProcessArchitecture;
+
+            if (isLinux && arch == Architecture.Arm64)
+            {
+                ColoredConsole
+                    .WriteLine("This version of the Azure Functions Core Tools currently doesn't support linux-arm64 with Python workers, with PowerShell workers, or with .NET applications using the in-process model.".DarkYellow());
+            }
+
+            ColoredConsole.WriteLine();
+        }
+
         private static RichString AlternateLogoColor(string str, int firstColorCount = -1)
         {
             if (str.Length == 1)