diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0d6e80d..8895c62 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 ## Changelog
 
+### 0.13.0 (2024-04-15)
+
+- BREAKING: Change the signature of `ContourBuilder::new` to take a `usize` instead of an `u32` for the dimensions of the grid.
+  This is more idiomatic and consistent with the rest of the Rust ecosystem and enables the use of larger grids
+  (thanks to @netthier, see #12 and #13 for details).
+
+- Fix artifacts in the contours obtained when using the `f32` feature and large grids (thanks to @netthier, see #12 and #13 for details).
+
 ### 0.12.1 (2024-03-11)
 
 - Fix bug in `area` function (fixes #11, thanks to @caspark). Note that given the use made of this function, it probably didn't cause issues with the contours created.
diff --git a/Cargo.toml b/Cargo.toml
index 23bfdc4..5530322 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "contour"
-version = "0.12.1"
+version = "0.13.0"
 authors = ["Matthieu Viry <matthieu.viry@cnrs.fr>"]
 edition = "2021"
 
diff --git a/README.md b/README.md
index 435761c..838bd03 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Add this to your `Cargo.toml`:
 
 ```toml
 [dependencies]
-contour = "0.12.1"
+contour = "0.13.0"
 ```
 
 and this to your crate root:
@@ -90,7 +90,7 @@ The `geojson` feature is not enabled by default, so you need to specify it in yo
 
 ```toml
 [dependencies]
-contour = { version = "0.12.1", features = ["geojson"] }
+contour = { version = "0.13.0", features = ["geojson"] }
 ```
 
 ```rust
@@ -150,7 +150,7 @@ If you want to use `f32` values instead, you need to specify the `f32` feature i
 
 ```toml
 [dependencies]
-contour = { version = "0.12.1", features = ["f32"] }
+contour = { version = "0.13.0", features = ["f32"] }
 ```
 
 ## WASM demo