feat: add auto-upgrade system with /upgrade command

README.md

@@ -182,6 +182,7 @@ Full DevSecOps capabilities with audit logging:
 | `/undo`        | Undo file modifications        |
 | `/diff`        | Show session changes           |
 | `/tools`       | List available tools           |
+| `/upgrade`     | Check for and install updates  |
 | `/help`        | Show help                      |
 
 ## Configuration

cmd/repl.go

@@ -23,6 +23,7 @@ import (
 	"github.com/tara-vision/taracode/internal/storage"
 	"github.com/tara-vision/taracode/internal/tools"
 	"github.com/tara-vision/taracode/internal/ui"
+	"github.com/tara-vision/taracode/internal/upgrade"
 	"github.com/tara-vision/taracode/internal/watch"
 )
 
@@ -161,6 +162,14 @@ func startREPL() {
 		}
 	}
 
+	// Start async version check (non-blocking)
+	updateResultChan := make(chan *upgrade.CheckResult, 1)
+	if viper.GetBool("upgrade.auto_check") {
+		CheckForUpdateAsync(Version, updateResultChan)
+	} else {
+		close(updateResultChan)
+	}
+
 	// Initialize MCP manager if enabled
 	var mcpManager *mcp.Manager
 	mcpConfig := GetMCPConfig()
@@ -226,6 +235,14 @@ func startREPL() {
 	}
 	defer rl.Close()
 
+	// Check for update result (non-blocking)
+	select {
+	case updateResult := <-updateResultChan:
+		ShowUpdateBanner(updateResult)
+	default:
+		// No result yet, continue without blocking
+	}
+
 	// Main REPL loop
 	for {
 		line, err := rl.Readline()
@@ -552,6 +569,7 @@ func handleCommand(cmd string, workingDir string, asst **assistant.Assistant, ho
 		fmt.Println("    /context --agents    - Show per-agent context usage")
 		fmt.Println("    /tools               - List available AI tools")
 		fmt.Println("    /usage        - Show token usage statistics")
+		fmt.Println("    /upgrade      - Check for and install updates")
 		fmt.Println("    /help         - Show this help message")
 		fmt.Println("    exit          - Exit Tara Code")
 		fmt.Println()
@@ -792,6 +810,10 @@ func handleCommand(cmd string, workingDir string, asst **assistant.Assistant, ho
 		// Screen monitoring and analysis
 		handleWatchCommand(args, *asst, watchMonitor, os.TempDir())
 
+	case "/upgrade":
+		// Check for and install updates
+		handleUpgradeCommand(args)
+
 	default:
 		fmt.Printf("Unknown command: %s\n", cmd)
 		fmt.Println("Type '/help' for available commands.")

cmd/root.go

@@ -254,6 +254,14 @@ func initConfig() {
 	viper.SetDefault("memory.retention_days", 90)
 	viper.SetDefault("memory.auto_capture", true)
 
+	// Upgrade (Auto-update) configuration defaults
+	// auto_check: Check for updates on startup (default: true)
+	// auto_upgrade: Automatically install updates without prompting (default: false)
+	// show_changelog: Show changelog when update is available (default: true)
+	viper.SetDefault("upgrade.auto_check", true)
+	viper.SetDefault("upgrade.auto_upgrade", false)
+	viper.SetDefault("upgrade.show_changelog", true)
+
 	viper.SetEnvPrefix("TARACODE")
 	viper.AutomaticEnv()
 

cmd/slash_completer.go

@@ -138,6 +138,13 @@ func GetSlashCommands() []SlashCommand {
 		{"/tools", "List available AI tools"},
 		{"/usage", "Show token usage statistics"},
 		{"/help", "Show help message"},
+		// Upgrade
+		{"/upgrade", "Check for and install updates"},
+		{"/upgrade check", "Check for new version"},
+		{"/upgrade now", "Upgrade to latest version"},
+		{"/upgrade skip", "Skip the current available update"},
+		{"/upgrade changelog", "Show full release notes"},
+		{"/upgrade status", "Show upgrade state information"},
 	}
 }