- Added queryFilter to Contracts. ([#463](https://github.com/ethers-io/ethers.js/issues/463); [eea53bb](https://github.com/ethers-io/ethers.js/commit/eea53bb1be29ad2bd1b229a13c85b12be264b019))
- Allow storage class in Human-Readable ABI. ([#476](https://github.com/ethers-io/ethers.js/issues/476); [cf39adb](https://github.com/ethers-io/ethers.js/commit/cf39adb09020ca0393e028b330bfd07fb4869236))
- Track per-provider JSON-RPC ID in JsonRpcProvider. ([#337](https://github.com/ethers-io/ethers.js/issues/337), [#489](https://github.com/ethers-io/ethers.js/issues/489); [044554b](https://github.com/ethers-io/ethers.js/commit/044554b58525d1677646a74119f86ea867a06d1e))
- Updated license for BaseX to include original authors; was only included in the source. ([03c9725](https://github.com/ethers-io/ethers.js/commit/03c97259c46de10dbe6ce62921de2f32ffff0522))