diff --git a/src/commands/launch.rs b/src/commands/launch.rs
index c41a9f8..9de59fb 100644
--- a/src/commands/launch.rs
+++ b/src/commands/launch.rs
@@ -31,9 +31,9 @@ pub struct LaunchCommand {
     #[arg(long)]
     pub new: bool,
 
-    /// Start without attaching the terminal (run in the background).
+    /// Attach the terminal to stream debug logs (default: runs detached).
     #[arg(long)]
-    pub detach: bool,
+    pub attach: bool,
 
     /// Import a Jupyter notebook (.ipynb) file on launch.
     #[arg(long, value_name = "PATH")]
@@ -147,7 +147,7 @@ pub async fn execute(cmd: LaunchCommand, ctx: &mut CommandContext<'_>) -> Result
         .register_session(session_record.clone(), runtime_env)
         .await?;
     let launch_handle = supervisor
-        .launch_session(&session_record.id, cmd.detach, ctx.config)
+        .launch_session(&session_record.id, !cmd.attach, ctx.config)
         .await?;
 
     let SessionLaunchHandle {
@@ -199,7 +199,7 @@ pub async fn execute(cmd: LaunchCommand, ctx: &mut CommandContext<'_>) -> Result
             .warn(format!("Unable to prepare editor URL: {err}"))?;
     }
 
-    if cmd.detach {
+    if !cmd.attach {
         if let Some(event) = completion_rx.borrow().clone() {
             match handle_completion_event(event, &supervisor, &session_record.id, ctx).await? {
                 CompletionOutcome::Finished => return Ok(()),
diff --git a/versions.lock b/versions.lock
index 3235df4..d402476 100644
--- a/versions.lock
+++ b/versions.lock
@@ -5,17 +5,17 @@
       "python_runtime": "3.12",
       "components": {
         "livedocs": "1.0.0-rc.19",
-        "livedocs-jedi": "1.0.0-rc.7",
-        "middleman": "1.0.0-rc.22"
+        "livedocs-jedi": "1.0.0-rc.8",
+        "middleman": "1.0.0-rc.23"
       }
     },
     "stable": {
-      "cli_version": "1.0.4",
+      "cli_version": "1.1.1",
       "python_runtime": "3.12",
       "components": {
         "livedocs": "1.0.4",
-        "livedocs-jedi": "1.2.0",
-        "middleman": "1.3.0"
+        "livedocs-jedi": "1.2.1",
+        "middleman": "1.3.1"
       }
     }
   }