diff --git a/packages/opencode/src/cli/cmd/tui/app.tsx b/packages/opencode/src/cli/cmd/tui/app.tsx
index 34833f5267c..33be73ca2d1 100644
--- a/packages/opencode/src/cli/cmd/tui/app.tsx
+++ b/packages/opencode/src/cli/cmd/tui/app.tsx
@@ -426,6 +426,15 @@ function App() {
     })
   })
 
+  event.on(Installation.Event.UpdateAvailable.type, (evt) => {
+    toast.show({
+      variant: "info",
+      title: "Update Available",
+      message: `OpenCode v${evt.properties.version} is available. Run 'opencode upgrade' to update manually.`,
+      duration: 10000,
+    })
+  })
+
   return (
     <box
       width={dimensions().width}
diff --git a/packages/opencode/src/cli/cmd/tui/thread.ts b/packages/opencode/src/cli/cmd/tui/thread.ts
index 43ce0853486..89d61d0f3c5 100644
--- a/packages/opencode/src/cli/cmd/tui/thread.ts
+++ b/packages/opencode/src/cli/cmd/tui/thread.ts
@@ -99,7 +99,8 @@ export const TuiThreadCommand = cmd({
       if (!args.prompt) return piped
       return piped ? piped + "\n" + args.prompt : args.prompt
     })
-    await tui({
+
+    const tuiPromise = tui({
       url: server.url,
       args: {
         continue: args.continue,
@@ -112,5 +113,11 @@ export const TuiThreadCommand = cmd({
         await client.call("shutdown", undefined)
       },
     })
+
+    setTimeout(() => {
+      client.call("checkUpgrade", { directory: cwd }).catch(() => {})
+    }, 1000)
+
+    await tuiPromise
   },
 })
diff --git a/packages/opencode/src/cli/cmd/tui/worker.ts b/packages/opencode/src/cli/cmd/tui/worker.ts
index db1eb8ecb76..50274f44200 100644
--- a/packages/opencode/src/cli/cmd/tui/worker.ts
+++ b/packages/opencode/src/cli/cmd/tui/worker.ts
@@ -26,8 +26,6 @@ process.on("uncaughtException", (e) => {
   })
 })
 
-upgrade()
-
 let server: Bun.Server<undefined>
 export const rpc = {
   async server(input: { port: number; hostname: string }) {
@@ -42,6 +40,14 @@ export const rpc = {
       throw e
     }
   },
+  async checkUpgrade(input: { directory: string }) {
+    await Instance.provide({
+      directory: input.directory,
+      fn: async () => {
+        await upgrade().catch(() => {})
+      },
+    })
+  },
   async shutdown() {
     Log.Default.info("worker shutting down")
     await Instance.disposeAll()
diff --git a/packages/opencode/src/cli/upgrade.ts b/packages/opencode/src/cli/upgrade.ts
index 73332f95528..ca5cba27c5a 100644
--- a/packages/opencode/src/cli/upgrade.ts
+++ b/packages/opencode/src/cli/upgrade.ts
@@ -5,10 +5,15 @@ import { Installation } from "@/installation"
 
 export async function upgrade() {
   const config = await Config.global()
-  if (config.autoupdate === false || Flag.OPENCODE_DISABLE_AUTOUPDATE) return
   const latest = await Installation.latest().catch(() => {})
   if (!latest) return
   if (Installation.VERSION === latest) return
+
+  if (config.autoupdate === false || Flag.OPENCODE_DISABLE_AUTOUPDATE) {
+    await Bus.publish(Installation.Event.UpdateAvailable, { version: latest })
+    return
+  }
+
   const method = await Installation.method()
   if (method === "unknown") return
   await Installation.upgrade(method, latest)
diff --git a/packages/opencode/src/installation/index.ts b/packages/opencode/src/installation/index.ts
index f4209e5b8de..cfb590013c2 100644
--- a/packages/opencode/src/installation/index.ts
+++ b/packages/opencode/src/installation/index.ts
@@ -22,6 +22,12 @@ export namespace Installation {
         version: z.string(),
       }),
     ),
+    UpdateAvailable: Bus.event(
+      "installation.update-available",
+      z.object({
+        version: z.string(),
+      }),
+    ),
   }
 
   export const Info = z
diff --git a/packages/sdk/js/src/gen/types.gen.ts b/packages/sdk/js/src/gen/types.gen.ts
index 4c1cb33fbea..e2e611db13a 100644
--- a/packages/sdk/js/src/gen/types.gen.ts
+++ b/packages/sdk/js/src/gen/types.gen.ts
@@ -7,6 +7,13 @@ export type EventInstallationUpdated = {
   }
 }
 
+export type EventInstallationUpdateAvailable = {
+  type: "installation.update-available"
+  properties: {
+    version: string
+  }
+}
+
 export type EventLspClientDiagnostics = {
   type: "lsp.client.diagnostics"
   properties: {
@@ -642,6 +649,7 @@ export type EventFileWatcherUpdated = {
 
 export type Event =
   | EventInstallationUpdated
+  | EventInstallationUpdateAvailable
   | EventLspClientDiagnostics
   | EventLspUpdated
   | EventMessageUpdated