* Include `new` expressions where callee is a class with side-effects ([#980](https://github.com/rollup/rollup/issues/980) [#1233](https://github.com/rollup/rollup/issues/1233))
## 0.41.0
* Add `this.warn(...)` and `this.error(...)` methods to plugin `transform` hook contexts ([#1140](https://github.com/rollup/rollup/issues/1140))