1# Change Log23All notable changes to this project will be documented in this file.45## [0.1.8] - 2022-08-2467## Added8 - Eth methods for collection9 + set_collection_sponsor_substrate10 + has_collection_pending_sponsor11 + remove_collection_sponsor12 + get_collection_sponsor13- Add convert function from `uint256` to `CrossAccountId`.1415## [0.1.7] - 2022-08-191617### Added1819 - Add convert funtion from `CrossAccountId` to eth `uint256`.2021 22## [0.1.6] - 2022-08-162324### Added25- New Ethereum API methods: changeOwner, changeOwner(Substrate) and verifyOwnerOrAdmin(Substrate).2627<!-- bureaucrate goes here -->28## [v0.1.5] 2022-08-162930### Other changes3132- build: Upgrade polkadot to v0.9.27 2c498572636f2b34d53b1c51b7283a761a7dc90a3334- build: Upgrade polkadot to v0.9.26 85515e54c4ca1b82a2630034e55dcc804c643bf83536- refactor: Switch to new prefix removal methods 26734e9567589d75cdd99e404eabf11d5a97d9753738New methods allows to call `remove_prefix` with limit multiple times39in the same block40However, we don't use prefix removal limits, so upgrade is41straightforward4243Upstream-Change: https://github.com/paritytech/substrate/pull/114904445- build: Upgrade polkadot to v0.9.25 cdfb9bdc7b205ff1b5134f034ef9973d769e5e6b4647## [0.1.3] - 2022-07-2548### Add49- Some static property keys and values.5051## [0.1.2] - 2022-07-205253### Fixed5455- Some methods in `#[solidity_interface]` for `CollectionHandle` had invalid56 mutability modifiers, causing invalid stub/abi generation.5758## [0.1.1] - 2022-07-145960### Added6162 - Implementation of RPC method `token_owners` returning 10 owners in no particular order.63 This was an internal request to improve the web interface and support fractionalization event.