diff --git a/Cargo.toml b/Cargo.toml
index e904890..3c341a0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,12 +7,8 @@ resolver = "2"
 publish = false
 
 [dependencies]
-kas = { version = "0.14.0-alpha" }
+kas = { version = "0.14.2" }
 chrono = "0.4"
 env_logger = "0.8"
 pest = "2.1"
 pest_derive = "2.1"
-
-[patch.crates-io.kas]
-git = "https://github.com/kas-gui/kas.git"
-rev = "90b19d6847ba1d4185de4605218b05db2b30024e"
diff --git a/src/flight_booker.rs b/src/flight_booker.rs
index f5f17fc..ddff88b 100644
--- a/src/flight_booker.rs
+++ b/src/flight_booker.rs
@@ -142,9 +142,8 @@ pub fn window() -> Window<()> {
         EditBox::new(Guard::new(false)),
         EditBox::new(Guard::new(true)),
         Text::new(|_, data: &Data| format!("{}", data.error)),
-        Button::new_msg(label_any("Book"), ActionBook).on_update(
-            |cx, button, data: &Data| cx.set_disabled(button.id(), !data.error.is_none())
-        ),
+        Button::new_msg(label_any("Book"), ActionBook)
+            .on_update(|cx, _, data: &Data| cx.set_disabled(!data.error.is_none())),
     ];
 
     let ui = Adapt::new(ui, data)
@@ -161,27 +160,24 @@ pub fn window() -> Window<()> {
 
             data.update_error();
         })
-        .on_messages(|cx, _, data| {
-            if cx.try_pop::<ActionBook>().is_some() {
-                let msg = if !data.error.is_none() {
-                    // should be impossible since the button is disabled
-                    format!("{}", data.error)
-                } else {
-                    match data.flight {
-                        Flight::OneWay => format!(
-                            "You have booked a one-way flight on {}",
-                            data.out.unwrap().format("%Y-%m-%d")
-                        ),
-                        Flight::Return => format!(
-                            "You have booked an out-bound flight on {} and a return flight on {}",
-                            data.out.unwrap().format("%Y-%m-%d"),
-                            data.ret.unwrap().format("%Y-%m-%d"),
-                        ),
-                    }
-                };
-                cx.add_window::<()>(MessageBox::new(msg).into_window("Booker result"));
-            }
-            false
+        .on_message(|cx, data, ActionBook| {
+            let msg = if !data.error.is_none() {
+                // should be impossible since the button is disabled
+                format!("{}", data.error)
+            } else {
+                match data.flight {
+                    Flight::OneWay => format!(
+                        "You have booked a one-way flight on {}",
+                        data.out.unwrap().format("%Y-%m-%d")
+                    ),
+                    Flight::Return => format!(
+                        "You have booked an out-bound flight on {} and a return flight on {}",
+                        data.out.unwrap().format("%Y-%m-%d"),
+                        data.ret.unwrap().format("%Y-%m-%d"),
+                    ),
+                }
+            };
+            cx.add_window::<()>(MessageBox::new(msg).into_window("Booker result"));
         });
 
     Window::new(ui, "Flight Booker")
diff --git a/src/main.rs b/src/main.rs
index b96eb1a..0eca634 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -27,7 +27,7 @@ enum X {
     Cells,
 }
 
-fn main() -> Result<(), kas::shell::Error> {
+fn main() -> Result<(), kas::app::Error> {
     env_logger::init();
 
     let ui = impl_anon! {
@@ -66,7 +66,8 @@ fn main() -> Result<(), kas::shell::Error> {
     let window = Window::new(ui, "7GUIs Launcher");
 
     let theme = kas::theme::FlatTheme::new();
-    let mut shell = kas::shell::Default::with_theme(theme).build(())?;
-    shell.add(window);
-    shell.run()
+    kas::app::Default::with_theme(theme)
+        .build(())?
+        .with(window)
+        .run()
 }
diff --git a/src/temp_conv.rs b/src/temp_conv.rs
index 9b0fccd..be82e57 100644
--- a/src/temp_conv.rs
+++ b/src/temp_conv.rs
@@ -40,9 +40,9 @@ impl_scope! {
 
 pub fn window() -> Window<()> {
     let ui = kas::row![
-        EditBox::parser(|temp: &Temperature| temp.celsius, Message::FromCelsius),
+        EditBox::instant_parser(|temp: &Temperature| temp.celsius, Message::FromCelsius),
         "Celsius =",
-        EditBox::parser(
+        EditBox::instant_parser(
             |temp: &Temperature| temp.fahrenheit,
             Message::FromFahrenheit
         ),
diff --git a/src/timer.rs b/src/timer.rs
index 8edbf84..2242791 100644
--- a/src/timer.rs
+++ b/src/timer.rs
@@ -50,7 +50,7 @@ pub fn window() -> Window<()> {
             data.start = Some(Instant::now());
             cx.request_timer(TIMER_ID, TIMER_SLEEP);
         })
-        .on_timer(TIMER_ID, |cx, _, data| {
+        .on_timer(TIMER_ID, |cx, data, _| {
             if let Some(start) = data.start {
                 data.elapsed = data.duration.min(Instant::now() - start);
                 if data.elapsed < data.duration {
@@ -63,26 +63,21 @@ pub fn window() -> Window<()> {
                 false
             }
         })
-        .on_messages(|cx, _, data| {
-            if let Some(dur) = cx.try_pop() {
-                data.duration = dur;
-                if let Some(start) = data.start {
-                    data.elapsed = data.duration.min(Instant::now() - start);
-                    if data.elapsed >= data.duration {
-                        data.start = None;
-                    }
-                } else if data.elapsed < data.duration {
-                    data.start = Some(Instant::now() - data.elapsed);
-                    cx.request_timer(TIMER_ID, Duration::ZERO);
+        .on_message(|cx, data, dur| {
+            data.duration = dur;
+            if let Some(start) = data.start {
+                data.elapsed = data.duration.min(Instant::now() - start);
+                if data.elapsed >= data.duration {
+                    data.start = None;
                 }
-                true
-            } else if let Some(ActionReset) = cx.try_pop() {
-                data.start = Some(Instant::now());
-                cx.request_timer(TIMER_ID, TIMER_SLEEP);
-                true
-            } else {
-                false
+            } else if data.elapsed < data.duration {
+                data.start = Some(Instant::now() - data.elapsed);
+                cx.request_timer(TIMER_ID, Duration::ZERO);
             }
+        })
+        .on_message(|cx, data, ActionReset| {
+            data.start = Some(Instant::now());
+            cx.request_timer(TIMER_ID, TIMER_SLEEP);
         });
 
     Window::new(ui, "Timer")