CHANGELOG.md in duckdb-0.2.7.0 vs CHANGELOG.md in duckdb-0.2.8.0

@@ -1,6 +1,11 @@
 # ChangeLog
 
+- DuckDB::Database.open accepts 2-nd argument as DuckDB::Config object.
+- add DuckDB::Config
+- bump duckdb to 0.2.8 in CI
+- bump Ruby to 2.6.8, 2.7.4, 3.0.2 in CI
+
 # 0.2.7.0
 
 - call duckdb_free after calling duckdb_value_blob, duckdb_value_varchar.
 - bump DuckDB to v0.2.7 in CI
 - rake build on Windows in github actions.