diff --git a/Cargo.toml b/Cargo.toml
index e37d337..df1c313 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ categories = [ "algorithms", "science" ]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rust-num/num-traits"
 name = "num-traits"
-version = "0.2.0-pre"
+version = "0.2.0"
 readme = "README.md"
 
 [dependencies]
diff --git a/README.md b/README.md
index 5f0c236..7381dfe 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 
 [![crate](https://img.shields.io/crates/v/num-traits.svg)](https://crates.io/crates/num-traits)
 [![documentation](https://docs.rs/num-traits/badge.svg)](https://docs.rs/num-traits)
+![minimum rustc 1.8](https://img.shields.io/badge/rustc-1.8+-red.svg)
 [![Travis status](https://travis-ci.org/rust-num/num-traits.svg?branch=master)](https://travis-ci.org/rust-num/num-traits)
 
 Numeric traits for generic mathematics in Rust.
diff --git a/RELEASES.md b/RELEASES.md
index b82bce6..d2bc774 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -1,3 +1,20 @@
+# Release 0.2.0
+
+- **breaking change**: There is now a `std` feature, enabled by default, along
+  with the implication that building *without* this feature makes this a
+  `#[no_std]` crate.
+  - The `Float` and `Real` traits are only available when `std` is enabled.
+  - Otherwise, the API is unchanged, and num-traits 0.1.43 now re-exports its
+    items from num-traits 0.2 for compatibility (the [semver-trick]).
+
+**Contributors**: @cuviper, @termoshtt, @vks
+
+[semver-trick]: https://github.com/dtolnay/semver-trick
+
+# Release 0.1.43
+
+- All items are now re-exported from num-traits 0.2 for compatibility.
+
 # Release 0.1.42
 
 - [num-traits now has its own source repository][num-356] at [rust-num/num-traits][home].
diff --git a/src/lib.rs b/src/lib.rs
index ef96e5c..a388fd5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -9,6 +9,10 @@
 // except according to those terms.
 
 //! Numeric traits for generic mathematics
+//!
+//! ## Compatibility
+//!
+//! The `num-traits` crate is tested for rustc 1.8 and greater.
 
 #![doc(html_root_url = "https://docs.rs/num-traits/0.2")]