diff --git a/gradle.properties b/gradle.properties
index 687f35c3..26cc7fdf 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -40,7 +40,7 @@ SONATYPE_HOST=DEFAULT
 RELEASE_SIGNING_ENABLED=true
 
 GROUP=dev.chrisbanes.haze
-VERSION_NAME=0.9.0-SNAPSHOT
+VERSION_NAME=0.9.0-alpha01
 
 POM_DESCRIPTION=Haze
 POM_URL=https://github.com/chrisbanes/haze/
diff --git a/haze-materials/api/0.9.0-alpha01.txt b/haze-materials/api/0.9.0-alpha01.txt
new file mode 100644
index 00000000..3b15c6b0
--- /dev/null
+++ b/haze-materials/api/0.9.0-alpha01.txt
@@ -0,0 +1,17 @@
+// Signature format: 4.0
+package dev.chrisbanes.haze.materials {
+
+  @kotlin.RequiresOptIn(message="Experimental Haze Materials API", level=kotlin.RequiresOptIn.Level.WARNING) public @interface ExperimentalHazeMaterialsApi {
+  }
+
+  public final class HazeMaterials {
+    method @androidx.compose.runtime.Composable @androidx.compose.runtime.ReadOnlyComposable @dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi public dev.chrisbanes.haze.HazeStyle regular(optional long containerColor);
+    method @androidx.compose.runtime.Composable @androidx.compose.runtime.ReadOnlyComposable @dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi public dev.chrisbanes.haze.HazeStyle thick(optional long containerColor);
+    method @androidx.compose.runtime.Composable @androidx.compose.runtime.ReadOnlyComposable @dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi public dev.chrisbanes.haze.HazeStyle thin(optional long containerColor);
+    method @androidx.compose.runtime.Composable @androidx.compose.runtime.ReadOnlyComposable @dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi public dev.chrisbanes.haze.HazeStyle ultraThick(optional long containerColor);
+    method @androidx.compose.runtime.Composable @androidx.compose.runtime.ReadOnlyComposable @dev.chrisbanes.haze.materials.ExperimentalHazeMaterialsApi public dev.chrisbanes.haze.HazeStyle ultraThin(optional long containerColor);
+    field public static final dev.chrisbanes.haze.materials.HazeMaterials INSTANCE;
+  }
+
+}
+
diff --git a/haze/api/0.9.0-alpha01.txt b/haze/api/0.9.0-alpha01.txt
new file mode 100644
index 00000000..ac339a7f
--- /dev/null
+++ b/haze/api/0.9.0-alpha01.txt
@@ -0,0 +1,63 @@
+// Signature format: 4.0
+package dev.chrisbanes.haze {
+
+  @androidx.compose.runtime.Stable public final class HazeArea {
+    ctor public HazeArea(optional long size, optional long positionOnScreen, optional androidx.compose.ui.graphics.Shape shape, optional dev.chrisbanes.haze.HazeStyle style);
+    method public long getPositionOnScreen();
+    method public androidx.compose.ui.graphics.Shape getShape();
+    method public long getSize();
+    method public dev.chrisbanes.haze.HazeStyle getStyle();
+    method public boolean isValid();
+    property public final boolean isValid;
+    property public final long positionOnScreen;
+    property public final androidx.compose.ui.graphics.Shape shape;
+    property public final long size;
+    property public final dev.chrisbanes.haze.HazeStyle style;
+  }
+
+  public final class HazeChildKt {
+    method public static androidx.compose.ui.Modifier hazeChild(androidx.compose.ui.Modifier, dev.chrisbanes.haze.HazeState state, optional androidx.compose.ui.graphics.Shape shape, optional dev.chrisbanes.haze.HazeStyle style);
+  }
+
+  public final class HazeDefaults {
+    method public float getBlurRadius();
+    method public dev.chrisbanes.haze.HazeStyle style(optional long backgroundColor, optional long tint, optional float blurRadius, optional float noiseFactor);
+    method public long tint(long color);
+    property public final float blurRadius;
+    field public static final dev.chrisbanes.haze.HazeDefaults INSTANCE;
+    field public static final float noiseFactor = 0.15f;
+    field public static final float tintAlpha = 0.7f;
+  }
+
+  public final class HazeKt {
+    method public static androidx.compose.ui.Modifier haze(androidx.compose.ui.Modifier, dev.chrisbanes.haze.HazeState state, optional dev.chrisbanes.haze.HazeStyle style);
+  }
+
+  @androidx.compose.runtime.Stable public final class HazeState {
+    ctor public HazeState();
+    method public dev.chrisbanes.haze.HazeArea getContent();
+    method public androidx.compose.ui.graphics.layer.GraphicsLayer? getContentLayer();
+    property public final dev.chrisbanes.haze.HazeArea content;
+    property public final androidx.compose.ui.graphics.layer.GraphicsLayer? contentLayer;
+  }
+
+  @androidx.compose.runtime.Immutable @dev.drewhamilton.poko.Poko public final class HazeStyle {
+    ctor public HazeStyle(optional long tint, optional long backgroundColor, optional float blurRadius, optional float noiseFactor);
+    method public long getBackgroundColor();
+    method public float getBlurRadius();
+    method public float getNoiseFactor();
+    method public long getTint();
+    property public final long backgroundColor;
+    property public final float blurRadius;
+    property public final float noiseFactor;
+    property public final long tint;
+    field public static final dev.chrisbanes.haze.HazeStyle.Companion Companion;
+  }
+
+  public static final class HazeStyle.Companion {
+    method public dev.chrisbanes.haze.HazeStyle getUnspecified();
+    property public final dev.chrisbanes.haze.HazeStyle Unspecified;
+  }
+
+}
+