diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 8d1c522f3..63c01b349 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    "hugr-py": "0.1.0"
+    "hugr-py": "0.2.0-pre"
 }
diff --git a/hugr-py/CHANGELOG.md b/hugr-py/CHANGELOG.md
index 7e32a82be..d5b39e4f8 100644
--- a/hugr-py/CHANGELOG.md
+++ b/hugr-py/CHANGELOG.md
@@ -1,5 +1,36 @@
 # Changelog
 
+## [0.2.0-pre](https://github.com/CQCL/hugr/compare/hugr-py-v0.1.0...hugr-py-v0.2.0-pre) (2024-05-10)
+
+
+### ⚠ BREAKING CHANGES
+
+* New serialisation schema
+* rename `Const::const_type` and `Value::const_type` to `Const::get_type` and `Value::get_type`. These now match several other `get_type` functions ([#1005](https://github.com/CQCL/hugr/issues/1005))
+* Many uses of `Const` now use `Value`.
+
+### Features
+
+* Add LoadFunction node ([#947](https://github.com/CQCL/hugr/issues/947)) ([81e9602](https://github.com/CQCL/hugr/commit/81e9602a47eddadc1c11d74ca7bda3b194d24f00))
+* Encoder metadata in serialized hugr ([#955](https://github.com/CQCL/hugr/issues/955)) ([0a44d48](https://github.com/CQCL/hugr/commit/0a44d487b73f58674eb5884c72479a03e924bef0))
+* Implement `CustomConst` serialization ([#1005](https://github.com/CQCL/hugr/issues/1005)) ([c45e6fc](https://github.com/CQCL/hugr/commit/c45e6fc67334768ea55c4bd5223af0b7b0cc47ec))
+* Revert the removal of `Value` ([#967](https://github.com/CQCL/hugr/issues/967)) ([0c354b6](https://github.com/CQCL/hugr/commit/0c354b6e07ae1aafee17e412fe54f7b3db321beb))
+* Set default value for `Conditional.sum_rows` ([#934](https://github.com/CQCL/hugr/issues/934)) ([d69198e](https://github.com/CQCL/hugr/commit/d69198eb57bf77f32538e1ba8de1f308815a067d))
+
+
+### Bug Fixes
+
+* `OpDef` serialization ([#1013](https://github.com/CQCL/hugr/issues/1013)) ([3d8f6f6](https://github.com/CQCL/hugr/commit/3d8f6f6a655f8af7f8fc2929f9bd7d3031b403f5))
+* input_port_types and other helper functions on pydantic schema ([#958](https://github.com/CQCL/hugr/issues/958)) ([8651839](https://github.com/CQCL/hugr/commit/86518390296bd93ca2fc65eccf158e21625b9073))
+* Remove insert_port_types for LoadFunction ([#993](https://github.com/CQCL/hugr/issues/993)) ([acca7bf](https://github.com/CQCL/hugr/commit/acca7bfb4a074c7feb3b4b5758f589941632bc5a))
+* Serialisation for `Type`, `PolyFuncType`, and `Value` ([#968](https://github.com/CQCL/hugr/issues/968)) ([d913f40](https://github.com/CQCL/hugr/commit/d913f406478a9f884bffef2002a02d423796b4e9))
+* Serialization for `Op`s ([#997](https://github.com/CQCL/hugr/issues/997)) ([9ce6e49](https://github.com/CQCL/hugr/commit/9ce6e49d1d0c8c200b9b78ebe35a0a3257009ca1))
+
+
+### Code Refactoring
+
+* rename `Const::const_type` and `Value::const_type` to `Const::get_type` and `Value::get_type`. These now match several other `get_type` functions ([#1005](https://github.com/CQCL/hugr/issues/1005)) ([c45e6fc](https://github.com/CQCL/hugr/commit/c45e6fc67334768ea55c4bd5223af0b7b0cc47ec))
+
 ## 0.1.0 (2024-04-15)
 
 This first release includes a pydantic model for the hugr serialization format version 1.
diff --git a/hugr-py/pyproject.toml b/hugr-py/pyproject.toml
index 28e4652b7..5e3474ffc 100644
--- a/hugr-py/pyproject.toml
+++ b/hugr-py/pyproject.toml
@@ -13,7 +13,7 @@ classifiers = [
     "Topic :: Scientific/Engineering",
 ]
 name = "hugr"
-version = "0.1.0"
+version = "0.2.0-pre"
 description = "Quantinuum's common representation for quantum programs"
 #keywords = []
 authors = ["TKET development team <tket-support@cambridgequantum.com>"]
diff --git a/hugr-py/src/hugr/__init__.py b/hugr-py/src/hugr/__init__.py
index 2a151714d..b3317a3f8 100644
--- a/hugr-py/src/hugr/__init__.py
+++ b/hugr-py/src/hugr/__init__.py
@@ -2,7 +2,7 @@
 representation.
 """
 
-__version__ = "0.1.0"
+__version__ = "0.2.0-pre"
 
 
 def it_works() -> str: