diff --git a/Cargo.toml b/Cargo.toml
index 63897053..af72b6f6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,8 +21,10 @@ features = ["docs"]
 rustdoc-args = ["--cfg", "feature=\"docs\""]
 
 [features]
+default = ["stable"]
 docs = ["unstable"]
 unstable = ["broadcaster"]
+stable = []
 
 [dependencies]
 async-macros = "1.0.0"
diff --git a/src/lib.rs b/src/lib.rs
index b659c39e..26856887 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -49,33 +49,46 @@
 #![doc(html_logo_url = "https://async.rs/images/logo--hero.svg")]
 #![recursion_limit = "2048"]
 
-#[macro_use]
-mod utils;
+/// Declares stable items.
+#[doc(hidden)]
+macro_rules! cfg_stable {
+    ($($item:item)*) => {
+        $(
+            #[cfg(feature = "stable")]
+            $item
+        )*
+    }
+}
 
-pub mod fs;
-pub mod future;
-pub mod io;
-pub mod net;
-pub mod os;
-pub mod path;
-pub mod prelude;
-pub mod stream;
-pub mod sync;
-pub mod task;
+cfg_stable! {
+    #[macro_use]
+    mod utils;
 
-cfg_unstable! {
-    pub mod pin;
-    pub mod process;
+    pub mod fs;
+    pub mod future;
+    pub mod io;
+    pub mod net;
+    pub mod os;
+    pub mod path;
+    pub mod prelude;
+    pub mod stream;
+    pub mod sync;
+    pub mod task;
 
-    mod unit;
-    mod vec;
-    mod result;
-    mod option;
-    mod string;
-    mod collections;
+    cfg_unstable! {
+        pub mod pin;
+        pub mod process;
 
-    #[doc(inline)]
-    pub use std::{write, writeln};
-}
+        mod unit;
+        mod vec;
+        mod result;
+        mod option;
+        mod string;
+        mod collections;
 
-mod macros;
+        #[doc(inline)]
+        pub use std::{write, writeln};
+    }
+
+    mod macros;
+}
diff --git a/src/prelude.rs b/src/prelude.rs
index 91432e0b..3e235cfa 100644
--- a/src/prelude.rs
+++ b/src/prelude.rs
@@ -23,8 +23,6 @@ pub use crate::io::Seek as _;
 pub use crate::io::Write as _;
 #[doc(no_inline)]
 pub use crate::stream::Stream;
-#[doc(no_inline)]
-pub use crate::task_local;
 
 #[doc(hidden)]
 pub use crate::future::future::FutureExt as _;