Update changelog and version number in pyproject.toml. (#434)

CHANGELOG.md

@@ -10,7 +10,33 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 * **Removed** for now removed features.
 
 
-## [ 0.2.0 ] - [ xxxx-yy-zz ]
+## [ 0.3.0 ] - [ xxxx-yy-zz ]
+
+
+## [ 0.2.0 ] - [ 2025-01-21 ]
 
 ### Added
-- Restore SGMQ notation for barrier groups in cQASMv1 Exporter.
+
+- `init` non-unitary instruction
+- `SWAP` two-qubit unitary instruction
+- `barrier` and `wait` control instructions
+- `SingleQubitGatesMerger` merger pass
+- `SWAP2CNOTDecomposer` decomposer pass
+- `CNOT2CZDecomposer` decomposer pass
+- `RoutingChecker` routing pass
+- Restore SGMQ notation for barrier groups in cQASMv1 Exporter
+
+### Changed
+
+- Importing modules, classes, and functionalities simplified
+- `merge_single_qubit_gates` method of `Circuit` class,
+changed to general `merge` method that accepts custom merger passes
+- libQASM 0.6.9 integrated (updated from 0.6.7)
+- Refactor: code base adheres to the PEP8 style guide
+- Refactor: instruction library simplified
+- Refactor: comment nodes removed from IR
+
+### Fixed
+
+- Bug in ABA-decomposer
+- Bug in McKay-decomposer (all single-qubit Clifford gates are verified)

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "opensquirrel"
-version = "0.0.5"
+version = "0.2.0"
 description = "A quantum circuit transformation and manipulation tool"
 authors = [
     "Quantum Inspire <support@quantum-inspire.com>"