diff --git a/CHANGELOG.md b/CHANGELOG.md
index c5c336c7eb..02a4e9e9c0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,24 @@
 # Changelog
 
+## 0.3.0 (2024-03-18)
+
+### Features
+
+- [**breaking**] Infallible `HugrMut` methods ([#869](https://github.com/CQCL/hugr/pull/869))
+- Ancilla support in CircuitBuilder ([#867](https://github.com/CQCL/hugr/pull/867))
+- `CircuitBuilder::append_with_output_arr` ([#871](https://github.com/CQCL/hugr/pull/871))
+- [**breaking**] Make some `Container` methods infallible ([#872](https://github.com/CQCL/hugr/pull/872))
+- [**breaking**] Cleaner error on wiring errors while building ([#873](https://github.com/CQCL/hugr/pull/873))
+- [**breaking**] Change sums to be over TypeRows rather than Types ([#863](https://github.com/CQCL/hugr/pull/863))
+- Make various data publicly accessible ([#875](https://github.com/CQCL/hugr/pull/875))
+- [**breaking**] CustomConst is not restricted to being CustomType ([#878](https://github.com/CQCL/hugr/pull/878))
+- [**breaking**] Return the type of FuncDecl in `HugrView::get_function_type` ([#880](https://github.com/CQCL/hugr/pull/880))
+- [**breaking**] Merge `Value` into `Const` ([#881](https://github.com/CQCL/hugr/pull/881))
+
+### Refactor
+
+- Extension Inference: make fewer things public, rm Meta::new ([#883](https://github.com/CQCL/hugr/pull/883))
+
 ## 0.2.0 (2024-02-20)
 
 ### Documentation
diff --git a/quantinuum-hugr/Cargo.toml b/quantinuum-hugr/Cargo.toml
index c79584ae8b..f34c890086 100644
--- a/quantinuum-hugr/Cargo.toml
+++ b/quantinuum-hugr/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "quantinuum-hugr"
-version = "0.2.0"
+version = "0.3.0"
 edition = { workspace = true }
 rust-version = { workspace = true }