# v3 -> v4 - Added support for NodeJS 11+ workers - `Comlink.proxy()` is now called `Comlink.wrap()` - `Comlink.proxyValue()` is now called `Comlink.proxy()` - Transferable values are _not_ transferred by default anymore. They need to be wrapped with `Comlink.transfer()` - Rewrote TypeScript types - New folder structure in the GitHub repo and in the npm module