diff --git a/src/fonts/font.rs b/src/fonts/font.rs
index 31ddaa3..acba579 100644
--- a/src/fonts/font.rs
+++ b/src/fonts/font.rs
@@ -25,6 +25,7 @@ pub struct Font {
     pub ascent: f32,
     pub descent: f32,
     pub metrics_total_surface: c_int,
+    pub used_4k_pages_map: [u8; 2],
 }
 
 unsafe impl RawCast<sys::ImFont> for Font {}
@@ -65,4 +66,5 @@ fn test_font_memory_layout() {
     assert_field_offset!(ascent, Ascent);
     assert_field_offset!(descent, Descent);
     assert_field_offset!(metrics_total_surface, MetricsTotalSurface);
+    assert_field_offset!(used_4k_pages_map, Used4kPagesMap);
 }
diff --git a/src/io.rs b/src/io.rs
index 9550c80..d61afe0 100644
--- a/src/io.rs
+++ b/src/io.rs
@@ -289,6 +289,7 @@ pub struct Io {
     /// f32::MAX]), so a disappearing/reappearing mouse won't have a huge delta.
     pub mouse_delta: [f32; 2],
 
+    key_mods: sys::ImGuiKeyModFlags,
     mouse_pos_prev: [f32; 2],
     mouse_clicked_pos: [[f32; 2]; 5],
     mouse_clicked_time: [f64; 5],
@@ -305,6 +306,7 @@ pub struct Io {
     keys_down_duration_prev: [f32; 512],
     nav_inputs_down_duration: [f32; NavInput::COUNT + NavInput::INTERNAL_COUNT],
     nav_inputs_down_duration_prev: [f32; NavInput::COUNT + NavInput::INTERNAL_COUNT],
+    input_queue_surrogate: sys::ImWchar16,
     input_queue_characters: ImVector<sys::ImWchar>,
 }
 
@@ -455,6 +457,7 @@ fn test_io_memory_layout() {
     assert_field_offset!(metrics_active_windows, MetricsActiveWindows);
     assert_field_offset!(metrics_active_allocations, MetricsActiveAllocations);
     assert_field_offset!(mouse_delta, MouseDelta);
+    assert_field_offset!(key_mods, KeyMods);
     assert_field_offset!(mouse_pos_prev, MousePosPrev);
     assert_field_offset!(mouse_clicked_pos, MouseClickedPos);
     assert_field_offset!(mouse_clicked_time, MouseClickedTime);
@@ -471,5 +474,6 @@ fn test_io_memory_layout() {
     assert_field_offset!(keys_down_duration_prev, KeysDownDurationPrev);
     assert_field_offset!(nav_inputs_down_duration, NavInputsDownDuration);
     assert_field_offset!(nav_inputs_down_duration_prev, NavInputsDownDurationPrev);
+    assert_field_offset!(input_queue_surrogate, InputQueueSurrogate);
     assert_field_offset!(input_queue_characters, InputQueueCharacters);
 }