4.0.0-pre.5

This release comes with changes to clean up the API to get ready for a stable release as well as adding new features such as more near_sdk::store updated collection types! Notable changes include:

• fix(standards): Fix NFT impl macros to not import HashMap and near_sdk::json_types::U128. PR 571.
• Add drain iterator for near_sdk::store::UnorderedMap. PR 613.
  • Will remove all values and iterate over owned values that were removed
• Fix codegen for methods inside a #[near_bindgen] to allow using mut self which will generate the same code as self and will not persist state. PR 616.
• Make function call terminology consistent by switching from method name usages. PR 633.
  • This is only a breaking change if inspecting the VmActions of receipts in mocked environments. All other changes are positional argument names.
• Implement new iterator for collections::Vec to optimize for nth and count. PR 634
  • This is useful specifically for things like pagination, where .skip(x) will not load the first x elements anymore
  • Does not affect any store collections, which are already optimized, this just optimizes the legacy collections that use Vec
• Add consts for near, yocto, and tgas. PR 640.
  • near_sdk::ONE_NEAR, near_sdk::ONE_YOCTO, near_sdk::Gas::ONE_TERA
• Update SDK dependencies for nearcore crates used for mocking (0.10) and borsh (0.9)
• Implemented Debug for all collection and store types. PR 647
• Added new internal mint function to allow specifying or ignoring refund. PR 618
• store: Implement caching LookupSet type. This is the new iteration of the previous version of near_sdk::collections::LookupSet that has an updated API, and is located at near_sdk::store::LookupSet. PR 654, PR 664.
• Deprecate testing_env_with_promise_results, setup_with_config, and setup due to these functions being unneeded anymore or have unintended side effects PR 671
  • Added missing pattern for only including context and vm config to testing_env! to remove friction
• Added _array suffix versions of sha256, keccak256, and keccak512 hash functions in env PR 646
  • These return a fixed length array instead of heap allocating with Vec<u8>
• Added ripemd160_array hash function that returns a fixed length byte array PR 648
• Added ecrecover under unstable feature for recovering signer address by message hash and a corresponding signature. PR 658.
• standards: Add require statement to ensure minimum needed gas in FT and NFT transfers at start of method. PR 678