diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..2b1e060
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,30 @@
+## 0.2.0
+
+- Add document for `convolution` (#76 by @qryxip)
+- fix: relax the constraints of floor_sum (#99 by @nebocco)
+- Segtree: Monoid BitwiseOr/BitwiseAnd/BitwiseXor, get_slice (#115 by @mizar)
+- Release v0.1.1 (#132 by @qryxip)
+- Relax the constraints of `floor_sum` (revised) (#133 by @TonalidadeHidrica)
+- Fix tests in src/convolution.rs (#136 by @koba-e964)
+- Update rust-toolchain to 1.70.0 (#137 by @togatoga)
+- Fix FromIterator for Segtree (#138 by @mousecrusher2)
+- refactor que.pop in FlowCalculator (#140 by @Ryoga-exe)
+- Fix clippy (#141 by @koba-e964)
+- fix corner cases of "modint" when mod = 1 (#142 by @mizar)
+- Implement `Clone` and `Debug` for `Dsu` (#154 by @NotLeonian)
+- Correct `n` to refer to vertices, not edges in `SccGraph::new` (#156 by @Ryoga-exe)
+- Implement `Clone` and `Debug` for `internal_scc::SccGraph` and `Debug` for `_Edge` (#157 by @NotLeonian)
+- Implement `Clone` and `Debug` for `TwoSat` (#158 by @NotLeonian)
+- Implement `Clone` and `Debug` for `MfGraph` and `_Edge` (#159 by @NotLeonian)
+- Implement `Clone` for `Edge` (#160 by @NotLeonian)
+- Implement `Clone` and `Debug` for `SccGraph` (#161 by @NotLeonian)
+- Implement `Clone` and `Debug` for `MinCostFlowGraph` and `_Edge` (#162 by @NotLeonian)
+- Implement `Clone` and `Debug` for `MinCostFlowEdge` (#163 by @NotLeonian)
+- Implement `Clone` for `FenwickTree` (#165 by @NotLeonian)
+- Implement `Clone` for `LazySegtree` (#166 by @NotLeonian)
+- Implement `Clone` for `Segtree` (#167 by @NotLeonian)
+- Fix import paths in examples for `convolution` module (#168 by @mizar)
+- Update KaTeX to version 0.16.22 (#169 by @mizar)
+- Add assertation in `lcp_array_arbitrary` (#173 by @NotLeonian)
+- fix `Dsu::leader` to avoid multiple assert checks (#175 by @NotLeonian)
+- fix: convolution test deadcode (#177 by @mizar)
diff --git a/Cargo.toml b/Cargo.toml
index d7ad692..322dce0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ac-library-rs"
-version = "0.2.0-alpha.1"
+version = "0.2.0"
 edition = "2018"
 rust-version = "1.70"
 description = "A Rust port of AtCoder Library (ACL)."