diff --git a/Cargo.toml b/Cargo.toml
index 9112539..193c9a0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,10 +8,9 @@ categories = ["algorithms", "data-structures", "science", "no-std"]
 license = "MIT/Apache-2.0"
 name = "num-complex"
 repository = "https://github.com/rust-num/num-complex"
-version = "0.3.0-pre"
+version = "0.3.0"
 readme = "README.md"
 exclude = ["/bors.toml", "/ci/*", "/.github/*"]
-publish = false
 edition = "2018"
 
 [package.metadata.docs.rs]
diff --git a/RELEASES.md b/RELEASES.md
index 5163276..3986d61 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -1,3 +1,25 @@
+# Release 0.3.0 (2020-06-13)
+
+### Enhancements
+
+- [The new "libm" feature passes through to `num-traits`][73], enabling `Float`
+  features on no-`std` builds.
+
+### Breaking Changes
+
+- `num-complex` now requires Rust 1.31 or greater.
+  - The "i128" opt-in feature was removed, now always available.
+- [Updated public dependences][65]:
+  - `rand` support has been updated to 0.7, requiring Rust 1.32.
+- [Methods for `T: Float` now take values instead of references][82], most
+  notably affecting the constructor `from_polar`.
+
+**Contributors**: @cuviper, @SOF3, @vks
+
+[65]: https://github.com/rust-num/num-complex/pull/65
+[73]: https://github.com/rust-num/num-complex/pull/73
+[82]: https://github.com/rust-num/num-complex/pull/82
+
 # Release 0.2.4 (2020-01-09)
 
 - [`Complex::new` is now a `const fn` for Rust 1.31 and later][63].